Allamakee co. Births
1850-1930
©Richard O'Brien 2021
"O" surnames
~*~
This database containing over 13,000 births was compiled by long-time Allamakee county researcher Richard O'Brien. He recorded these births from a large variety of sources, not all being primary sources. As in any compiled database, errors are to be expected. Please use only as a guide in your personal research.
We extend our thank-you to Richard for sharing this information!
(Return to Birth Records index)
| NAME | DATE OF BIRTH | FATHER / MOTHER |
| O'Boyle, Bridget | 1885 Jun 16 | Patrick O'Boyle / Rose Gallagher |
| O'Brien, unkn | 1891 Apr 01 | unkn O’Brien / unkn |
| O'Brien, Agnes | 1883 Jun 04 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Anastasia | 1880 Feb 14 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Anna Winifred | 1860 Sep 01 | Michael O’Brien / Katherine Hogan |
| O'Brien, Bernice Mary | 1902 May 21 | James Michael O'Brien / Mary Anna Rupp |
| O'Brien, Charles E | 1891 Jan | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Clement Patrick | 1889 Feb 08 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Edward John | 1894 Apr 14 | James Michael O'Brien / Mary Anna Rupp |
| O'Brien, Ellen Elizabeth | 1880 Sep 11 | Nic O'Brien / Ida Yoeman |
| O'Brien, Emmett George | 1887 Jul 16 | John Joseph O’Brien / Sarah Jane McNally |
| O'Brien, Florence Elizabeth | 1892 Sep 19 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Florence Pauline | 1904 May 29 | Warren Henry O'Brien / Lena Koehring |
| O'Brien, Frank L | 1896 Nov 03 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, Hanora | 1884 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Harold Vernon | 1898 May 21 | James Michael O'Brien / Mary Anna Rupp |
| O'Brien, Helen Elizabeth | 1924 Jun 12 | Frank L O'Brien / Ruth Mary Kelly |
| O'Brien, Hugh | 1896 Nov 03 | unkn O'Brien / unkn |
| O'Brien, James Frances | 1885 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, John | 1877 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, John David | 1888 Feb 18 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, John Joseph | 1858 Aug 09 | Michael O’Brien / Katherine Hogan |
| O'Brien, John Joseph | 1915 Jun 15 | Tim O’Brien / Kate Kelleher |
| O'Brien, John Joseph | 1920 Feb 14 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, Joseph Frank | 1903 Dec 03 | Joseph M O’Brien / Louise W Rupp |
| O'Brien, Joseph Leonard | 1899 Apr 24 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, Kathy | 1878 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Kenneth W | 1913 Apr 21 | Warren Henry O'Brien / Lena Koehring |
| O'Brien, Leo | 1906 Jun 19 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, Leo | 1906 Oct 12 | John Joseph O’Brien / Sarah Jane McNally |
| O'Brien, Leonard L | 1896 Oct 18 | James Michael O'Brien / Mary Anna Rupp |
| O'Brien, Leslie Warren | 1908 Dec 03 | Warren Henry O'Brien / Lena Koehring |
| O'Brien, Margaret Thersa | 1878 Aug 18 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Mary | 1887 Jun 04 | David O'Brien / Margaret Magnor |
| O'Brien, Mary Deloris | 1919 Jun 17 | Thomas Ignatius O’Brien / Crystal Reed |
| O'Brien, Mary Ellen | 1903 Sep 29 | John Joseph O’Brien / Sarah Jane McNally |
| O'Brien, Mary Irene | 1894 Jul 02 | Thomas F O'Brien / Mary Ellen O'Regan |
| O'Brien, Mary Lena | 1904 Mar 04 | Warren Henry O'Brien / Lena Koehring |
| O'Brien, Raymond Cyril | 1918 Jul 05 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, Thomas Ignatius | 1891 Jul 30 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, Thomas William | 1885 Oct 04 | Patrick O’Brien / Mary Ann Kelleher |
| O'Brien, Vincent Walter | 1898 Dec 22 | Patrick O'Brien / Mary A Kelleher |
| O'Brien, Walter Patrick | 1908 Mar 14 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, William Francis | 1893 Dec 09 | John Joseph O’Brien / Sarah Ann McNally |
| O'Brien, Willie | 1886 | Patrick O’Brien / Mary Ann Kelleher |
| O'Connell, Patrick | 1880 Jul 20 | Thomas O'Connell / Johanna unkn |
| O'Donnell, Francis E | 1916 Jun 04 | Patrick Edward O’Donnell / Isabell Anna Duffy |
| O'Donnell, John | 1877 Jun 10 | Hugh S O’Donnell / Ellen Maher |
| O'Donnell, Marie | 1872 | John O’Donnell / Eunice Dougherty |
| O'Donnell, Mary Agnes | 1907 Oct 26 | James U McDonnell / Gertrude Deery |
| O'Donnell, Theresa | 1874 | John O’Donnell / Eunice Dougherty |
| O'Hara, Edward Emmett | 1902 Jan 06 | James F O'Hara / Margaret Farrell |
| O'Hara, James Oparmis | 1899 May 09 | James F O'Hara / Margaret Farrell |
| O'Hara, Susan Jane | 1891 Nov 23 | James F O'Hara / Margaret Farrell |
| O'Hara, Thomas F | 1895 Apr 13 | James F O'Hara / Margaret Farrell |
| O'Hare, James | 1887 Jul 04 | Jeremiah O'Hare / Bridgit O'Laughlin |
| O'Harer, Anna Marie | 1899 Jan 22 | Joesph O’Hara / Susan McCormick |
| O'Laughlin, Margaret E | 1869 Mar 22 | Terrance O'Laughlin / Bridget Donahue |
| O'Laughlin, Michael | 1867 Mar 20 | Terrance O'Laughlin / Bridget Donahue |
| O'Laughlin, Michael | 1869 | Terrance O'Laughlin / Bridget Donahue |
| O'Malley, Anastasia | 1891 Jan | Dennis O'Malley / Elizabeth Schwartzhoff |
| O'Malley, Anastasia | 1904 Nov 14 | James P O’Malley / Catherine Williams |
| O'Malley, Anna Stacia | 1906 Apr 07 | Thomas O’Malley / Ellen McCullough |
| O'Malley, Catherine Celine | 1912 Apr 08 | James P O’Malley / Catherine Williams |
| O'Malley, Clarence | 1898 Aug 21 | James P O’Malley / Catherine Williams |
| O'Malley, Elizabeth M | 1902 | Dennis O'Malley / Elizabeth Schwartzhoff |
| O'Malley, Eugene | 1856 Dec 22 | James O’Malley / Anastacia Byrnes |
| O'Malley, Francis | 1900 Oct 23 | James P O’Malley / Catherine Williams |
| O'Malley, James C | 1893 Jun 01 | Dennis O'Malley / Elizabeth Schwartzhoff |
| O'Malley, James Emmett | 1895 Jun 03 | James P O'Malley / Kate Williams |
| O'Malley, John | 1896 Oct 31 | James P O'Malley / Kate Williams |
| O'Malley, John Francis | 1907 Mar 20 | Thomas O’Malley / Ellen McCullough |
| O'Malley, John Joseph | 1909 Oct 15 | James P O’Malley / Catherine Williams |
| O'Malley, Joseph Francis | 1898 Aug 23 | Dennis O'Malley / Elizabeth Schwartzhoff |
| O'Malley, Martha Alice | 1909 Aug 02 | Thomas O’Malley / Ellen McCullough |
| O'Malley, Mary A | 1902 Sep 21 | James P O’Malley / Catherine Williams |
| O'Malley, Mary Elise | 1901 May 21 | Dennis O'Malley / Elizabeth Schwartzhoff |
| O'Malley, Patrick H | 1912 Mar 25 | Thomas O’Malley / Ellen McCullough |
| O'Malley, Thomas John | 1896 Nov 28 | Dennis O'Malley / Elizabeth Schwartzhoff |
| O'Neill, Ambrose | 1897 Dec 29 | Thomas J O'Neill / Catherine F Roche |
| O'Neill, Ambrose | 1897 Jul 08 | James O'Neill / Mary Fitzgerald |
| O'Neill, Cyril Crispin | 1902 Oct 25 | Thomas Joseph O'Neill / Catherine Frances Roche |
| O'Neill, Evarista | 1894 Sep 30 | James O'Neill / Mary Fitzgerald |
| O'Neill, Geraldine | 1896 Apr 14 | James O'Neill / Mary Fitzgerald |
| O'Neill, Joseph Leo | 1888 Jan 20 | John O'Neill / Anna Josephine Martin |
| O'Neill, Mary Esther | 1887 Mar 14 | Thomas Joseph O'Neill / Catherine Frances Roche |
| O'Neill, Silia | 1888 Aug 15 | Thomas Joseph O'Neill / Catherine Frances Roche |
| O'Regan, James E | 1912 Nov 16 | James Frances O'Regan / Mary C Lyons |
| O'Regan, James Francis | 1870 Dec 15 | Maurice Patrick O’Regan / Mary Waters |
| O'Regan, Kathryn M | 1917 May 02 | James Frances O'Regan / Mary C Lyons |
| O'Regan, Margaretta Hanora | 1897 Nov 28 | William T O'Regan / Catherine Gavin |
| O'Regan, Mary Ellen | 1868 Feb 22 | Maurice Patrick O’Regan / Mary Waters |
| O'Regan, Mary Helena | 1915 May 13 | James Frances O'Regan / Mary C Lyons |
| O'Regan, Maurice Frances | 1910 Aug 21 | James Frances O'Regan / Mary C Lyons |
| O'Regan, Maurice Patrick | 1876 Jun 23 | Maurice Patrick O’Regan / Mary Waters |
| O'Regan, William Thomas | 1899 Dec 20 | William T O'Regan / Catherine Gavin |
| O'Reilly, Elizabeth V | 1899 Aug 30 | John A. O'Reilly / Bridget Collins |
| O’Boyle, Frederick O | 1882 Sep 05 | Patrick O'Boyle, / Rosa Callahan |
| O’Boyle, Rosanna | 1889 Feb 15 | Patrick O'Boyle / Rose Gallagher |
| O’Brien, Cyril Frederick | 1927 Sep 26 | Frank L O'Brien / Ruth Mary Kelly |
| O’Brien, Elizabeth | 1868 Jul 04 | Michael O’Brien / Bridget Byrnes |
| O’Brien, Elizabeth | 1867 May | Michael O'Brien / Bridget unkn |
| O’Brien, Ellen | 1864 Aug 31 | Michael O’Brien / Bridget Byrnes |
| O’Brien, Ellen | 1865 | Michael O'Brien / Bridget unkn |
| O’Brien, Helen Madalene | 1905 Jun 17 | James O’Brien / Mary Rupp |
| O’Brien, Katie | 1873 | Michael O'Brien / Bridget unkn |
| O’Brien, Timothy | 1874 Mar | Michael O'Brien / Bridget unkn |
| O’Donnell, Cletus Francis | 1917 Aug 22 | Patrick Edward O’Donnell / Isabell Anna Duffy |
| O’Donnell, Ella | 1875 Mar 28 | Hugh S O’Donnell / Ellen Maher |
| O’Donnell, Julia A | 1879 Oct 04 | Hugh S O’Donnell / Ellen Maher |
| O’Donnell, Norbert Patrick | 1914 Apr 22 | Patrick Edward O’Donnell / Isabell Anna Duffy |
| O’Donnell, Patrick Edward | 1873 Jul 27 | Hugh S O’Donnell / Ellen Maher |
| O’Hare, Mary Ellen | 1920 Oct 31 | Jerry V O”Hare / Maude M Marsden |
| O’Laughlin, Catherine | 1867 | Terrance O'Laughlin / Bridget Donahue |
| O’Malley, Bridget | 1876 | John O'Malley / Bridget unkn |
| O’Malley, Cecelia | 1873 | John O'Malley / Bridget unkn |
| O’Malley, Grace | 1883 May | John O'Malley / Bridget unkn |
| O’Malley, Peter Clement | 1871 Feb 12 | John O'Malley / Bridget unkn |
| O’Malley, Winifred | 1879 | John O'Malley / Bridget unkn |
| O’Neill, George Francis | 1891 Sep 03 | Thomas Joseph O'Neill / Catherine Frances Roche |
| O’Neill, Irenaeus Ambrose | 1897 Dec 30 | Thomas Joseph O'Neill / Catherine Frances Roche |
| O’Neill, John J | 1885 Mar | Thomas Joseph O'Neill / Catherine Frances Roche |
| O’Neill, Leo James | 1894 Aug 14 | Thomas Joseph O'Neill / Catherine Frances Roche |
| O’Neill, Marcella Sarah | 1900 May 20 | Thomas Joseph O'Neill / Catherine Frances Roche |
| O’Neill, William Henry | 1895 Dec 15 | Thomas Joseph O'Neill / Catherine Frances Roche |
| O’Reilly, Mary C | 1895 Mar 28 | John A O' Reilly / Bridget Collins |
| O”Hare, Loretta Mary | 1930 Mar 10 | Jerry V O”Hare / Maude M Marsden |
| Obert, Albert | 1859 Mar 26 | Hartman Obert / Harriet Mathilda Green |
| Obert, Charles | 1856 Nov 22 | Hartman Obert / Harriet Mathilda Green |
| Obert, Harriet Elizabeth | 1860 Dec 02 | Hartman Obert / Harriet Mathilda Green |
| Oesterle, Eugene John | 1929 May 01 | John Oesterle / Laura Shellhammer |
| Oestern, Casper Jakob | 1889 May 05 | Engebret Oestern / Hannah unkn |
| Oestern, Clara E | 1865 Sep | Gullick O Oestern / Karen Helene Pederson |
| Oestern, Matine Luella | 1890 Apr 16 | Engebret Oestern / Hannah unkn |
| Oestern, Pearl | 1897 Oct 19 | Thorvald Oestern / Veronica Houlihan |
| Oestern, Thorvald A | 1869 Apr 15 | Gullick O Oestern / Karen Helene Pederson |
| Ohlmstead, Harriet | 1898 Jun 25 | Alvin Soule Olmstead / Nellie M Smith |
| Ohloff, Charles Henry | 1894 Jun 16 | Charles Ohloff / Mary Johanna Krogman |
| Ohloff, Clara Katherine | 1896 Jun 16 | Charles Ohloff / Mary Johanna Krogman |
| Ohloff, Dewey Carl | 1902 Apr 04 | Charles Ohloff / Mary Johanna Krogman |
| Ohloff, Frederick William | 1898 May 29 | Charles Ohloff / Mary Johanna Krogman |
| Ohloff, Geneva Mabel | 1910 Nov 01 | Charles Ohloff / Mary Johanna Krogman |
| Ohloff, Louise W | 1892 Mar 25 | Charles Ohloff / Mary Johanna Krogman |
| Ohloff, Redena Marie | 1904 Feb 27 | Charles Ohloff / Mary Johanna Krogman |
| Okre, Anga Martine P | 1884 Sep 20 | John S Okre / Anna M Christianson |
| Okre, Josephine | 1881 Jan 25 | John Okre, / Anna Marie Hanson |
| Olander, Nora Helen | 1885 Dec 10 | Andrew Olander / Ida C Johnson |
| Olander, Oscar Napoleon | 1890 Nov 17 | Andrew Olander / Ida C Johnson |
| Oleson, Maria | 1878 Sep 23 | Steingrim Olsen / Ingrid E Knudtson |
| Olloff, Arthur Ash | 1894 Jun 26 | August Olloff / Lucinda Lankford |
| Olloff, Daisy | 1890 | August Olloff / Lucinda Lankford |
| Olloff, Elmer | 1898 | August Olloff / Lucinda Lankford |
| Olloff, Fred Theodore | 1903 Apr 27 | August Olloff / Lucinda Lankford |
| Olloff, George Jerome | 1892 | August Olloff / Lucinda Lankford |
| Olloff, Margaret Franklin | 1902 Feb 28 | August Olloff / Lucinda Lankford |
| Olloff, Minnie May | 1886 | August Olloff / Lucinda Lankford |
| Olloff, Myrtle | 1892 Mar | August Olloff / Lucinda Lankford |
| Olloff, William | 1885 Oct 15 | August Olloff / Lucinda Lankford |
| Olsen, Albert | 1875 Mar 15 | Anders Olsen / Margaretta, unkn |
| Olsen, Anna Marie | 1852 Jun | Ole Tveton / Annie O Nilsen |
| Olsen, Geraldine | 1919 Apr 25 | Sever Olson / Amy Grace Prince |
| Olsen, Lars | 1898 Feb 18 | unkn Olson / unkn |
| Olsen, Laura Augusta | 1881 Jul 21 | Thorwald Olsen / Louisa Dorothea Schultz |
| Olsen, Mabel Bedinah | 1915 Jan 15 | Sever Olson / Amy Grace Prince |
| Olsen, Mabel C | 1898 Aug 03 | Hans A Olsen / Mathilda C Kvalm |
| Olsen, Martina | 1873 Mar 11 | unkn / unkn |
| Olsen, Sever Herman | 1917 Apr 30 | Sever Olson / Amy Grace Prince |
| Olsgard, Constance Belline | 1884 Jan 22 | Thomas E Olsgard / Anna Engbretson |
| Olslund, Joseph | 1883 Aug 25 | Nels Olslund / Maria Holm |
| Olslund, Joseph | 1883 Aug 25 | Nels Olslund / Marie Holm |
| Olson, son | 1913 Oct 18 | Sever Olson / Amy Grace Prince |
| Olson, Agnes Cecelia | 1908 Nov 25 | John Kittle Olson / Sophia Lageson |
| Olson, Alvin Martin | 1904 Apr 03 | Martin Olson / Atlanta Halvorson |
| Olson, Anga Wilhelmine | 1894 May 25 | Ole Olson / Margit Kittelson |
| Olson, Anna | 1859 | Helge Olson / Rachel Halvorson |
| Olson, Anna Christine | 1877 Sep 12 | Asle Olson / Christina Knudtson |
| Olson, August Bellport | 1885 May 30 | unkn Olson / unkn |
| Olson, Betty A | 1881 Nov 24 | Arne O Arneson, / Isabella L Larson |
| Olson, Carl Anton | 1871 Oct 29 | Asle Olson / Christina Knudtson |
| Olson, Caroline | 1863 Oct 22 | John Olson / Christine unkn |
| Olson, Celia | 1867 Nov 02 | Asle Olson / Christina Knudtson |
| Olson, Christ | 1867 Mar 02 | Kittle Olson / Liv Esplie |
| Olson, Christian J | 1867 Dec 26 | John Olson / Christine unkn |
| Olson, Clarence M | 1903 May 08 | John Kittle Olson / Sophia Lageson |
| Olson, Dora Amelia | 1892 Dec 09 | Oulf Olson / Ida Hanson |
| Olson, Effie Louise | 1873 Oct | John Olson / Christine unkn |
| Olson, Elmer Othello | 1908 Oct 07 | John Kittle Olson / Sophia Lageson |
| Olson, Frances Dello | 1915 Aug 25 | Leo Olson / Bessie Waldron |
| Olson, Halvor K | 1852 Feb 18 | Kittle Olson / Liv Esplie |
| Olson, Harriet | 1856 | Helge Olson / Rachel Halvorson |
| Olson, Helen Luella | 1913 Apr 25 | John Kittle Olson / Sophia Lageson |
| Olson, Henry A | 1881 Mar 04 | Asle Olson / Christina Knudtson |
| Olson, Herman | 1866 Mar 13 | John Olson / Christine unkn |
| Olson, Herman Asleson | 1875 May 17 | Asle Olson / Christina Knudtson |
| Olson, Ingrid Elizabeth | 1859 Aug 13 | Kittle Olson / Liv Esplie |
| Olson, Isabella | 1869 Sep 28 | Asle Olson / Christina Knudtson |
| Olson, Isack Elmer | 1897 Jun 01 | unkn Olson / unkn |
| Olson, John Diedrick | 1884 Feb 22 | Thorvald Olson / Louise Dorothea Schultz |
| Olson, John Kittle | 1865 Jan 14 | Kittle Olson / Liv Esplie |
| Olson, Josefine Ovida | 1886 Oct 22 | Berthel Olson / Bertha unkn |
| Olson, Josephine Ruth | 1926 Dec 14 | Peter Olson / Minnie Steffenson |
| Olson, Laura Andrine | 1915 May 18 | John Kittle Olson / Sophia Lageson |
| Olson, Lewis | 1873 Jun 18 | Asle Olson / Christina Knudtson |
| Olson, Lornas Laurence | 1906 Dec 10 | John Kittle Olson / Sophia Lageson |
| Olson, Marcella Lavone | 1929 Feb 19 | Melvin Olson / Lola Davis |
| Olson, Marie | 1878 Sep 23 | Steingrim Olson / Ingrid E Knutson |
| Olson, Martin Clifford | 1904 Jun 07 | John Kittle Olson / Sophia Lageson |
| Olson, Mary | 1862 Jan | John Olson / Christine unkn |
| Olson, Maurice Oliver | 1892 Apr 25 | Waldemar A Olson / Louise Aschom |
| Olson, Melyn | 1884 Nov 02 | John P Olson / Isabel Gilbertson |
| Olson, Myrtle Margaret | 1898 Jan 23 | Mathew Olson / Myrtle Kechvrd |
| Olson, Odin Guard | 1885 Sep 11 | David Olson / Thora unkn |
| Olson, Ole H | 1857 Oct 20 | Helge Olson / Rachel Halvorson |
| Olson, Ole K | 1854 Jun 27 | Kittle Olson / Liv Esplie |
| Olson, Ongeville | 1894 May 25 | Waldmar Olson / Louise Aschom |
| Olson, Othello Hjalmer | 1910 Nov 27 | John Kittle Olson / Sophia Lageson |
| Olson, Peter Asleson | 1879 Jan 22 | Asle Olson / Christina Knudtson |
| Olson, Severine | 1854 Aug 07 | Helge Olson / Rachel Halvorson |
| Olson, Swen K | 1856 Sep 15 | Kittle Olson / Liv Esplie |
| Onsager, Alma Louise | 1899 Dec 11 | Brede Anderson Onsager / Julia Larson |
| Onsager, Helga O | 1897 Nov 25 | Brede Anderson Onsager / Julia Larson |
| Onsager, Henry Olver | 1881 Nov 12 | Andrew Onsager / Mari Olena Smerud |
| Onsager, Lars | 1889 Jul 13 | Brede Anderson Onsager / Julia Larson |
| Onsager, Martha | 1873 Sep 18 | Andrew Onsager / Mari Olena Smerud |
| Opfer, Albert Bernard | 1883 Jul 07 | Simon H Opfer, / Fredericka D Hansmeier |
| Opfer, Anna Laura | 1891 May 20 | Simon H Opfer, / Fredericka D Hansmeier |
| Opfer, Benjamin Cornelius | 1886 Apr 25 | John F Opfer / Mary S Hager |
| Opfer, Clarence Otto | 1911 Feb 23 | Frederick Opfer / Clara Emma Ludeking |
| Opfer, Dorothea S | 1894 Aug 27 | Simon H Opfer, / Fredericka D Hansmeier |
| Opfer, Edward Gustave | 1881 Jul | Simon H Opfer / Fredericka D Hansmeier |
| Opfer, Emma Helen | 1887 Oct 18 | Simon H Opfer, / Fredericka D Hansmeier |
| Opfer, Frederick | 1878 Aug 22 | Simon H Opfer, / Fredericka D Hansmeier |
| Opfer, Helen Lydia | 1915 Apr 23 | Frederick Opfer / Clara Emma Ludeking |
| Opfer, Leonard John | 1881 Nov 02 | Henry F Opfer / Mary S Hager |
| Opfer, Lydia Minnie | 1885 Feb 11 | Simon H Opfer / Fredericka D Hansmeier |
| Opfer, Martin Simon | 1881 Nov 12 | Simon H Opfer / Fredericka D Hansmeier |
| Opfer, Minnie Ella | 1889 Sep 10 | Simon H Opfer / Fredericka D Hansmeier |
| Opheim, Anna Alica | 1873 Mar 23 | Nels Nelson Opheim / Eli Fretheim |
| Opheim, Ellen Julia | 1899 Mar 19 | Henry N Opheim / Lena Quandahl |
| Opheim, Harold Alton | 1919 Mar 16 | Nels Arthur Opheim / Myrtle Ada Tangen |
| Opheim, Lilahann Dorothy | 1924 Jun 22 | Nels Arthur Opheim / Myrtle Adalia Tangen |
| Opheim, Nels Arthur | 1895 Jul 19 | Henry L Opheim / Lena M Quandahl |
| Ophendinger, Bernard | 1884 Jul 27 | Bernard Opendinger / Katie Kemper |
| Opofer, David Benjamin | 1919 Jan 02 | Benjamin C Opfer / Mabel Elizabeth Kilpatrick |
| Orcutt, Donald Dewey | 1898 May 14 | Cornelius L Orcutt / Eva Maude Kline |
| Organ, Harrisan | 1887 Sep 12 | Charles F Organ / Martha J Harmon |
| Orr, Carrrie Maria | 1886 Nov 18 | Frank Mahlon Orr / Emma Lois Topliff |
| Orr, Darius Sunderlin | 1859 Jun 04 | James A Orr / Margaret Ann Ellison |
| Orr, Eve | 1898 Nov 14 | Darius S Orr / Bertha J Harris |
| Orr, Florence Edith | 1888 Nov 28 | Ellison James Orr / Mary Belle Makepeace |
| Orr, Frederick M | 1880 Aug 13 | Ellison James Orr / Mary Belle Makepeace |
| Orr, Harry Oliver | 1886 Apr 18 | Ellison James Orr / Mary Belle Makepeace |
| Orr, James Otis | 1898 Aug 04 | Ellison James Orr / Mary Belle Makepeace |
| Orr, Leighton Frank | 1889 Sep 06 | Frank Mahlon Orr / Emma Lois Topliff |
| Orr, Margaret Emily | 1888 Feb 13 | Frank Mahlon Orr / Emma Lois Topliff |
| Orrben, Albert Leopold | 1896 Nov 21 | Oscar F Orrben / Ragna E Olsgaard |
| Oslund, Arthur William | 1885 Dec 21 | Nels Oslund / Petra M Neolm |
| Osmer, Albert Calvin | 1881 Feb 23 | Albert Calvin Osmer / Electra Mary Nelson |
| Osmundson, Agnes | 1906 Nov 06 | Edward Olai Osmundson / Ida Emelia Fretheim |
| Osmundson, Benjamin F | 1915 Dec 13 | Edward Olai Osmundson / Ida Emelia Fretheim |
| Osmundson, Bernt Fiis | 1873 Aug 12 | Jeremias Osmundson / unkn |
| Osmundson, Carie Margarethe | 1903 May 08 | Edward Olai Osmundson / Ida Emelia Fretheim |
| Osmundson, Edward | 1870 Jan 23 | Jeremias Osmundson / Marjet Ellingson |
| Osmundson, Henry Melvin | 1905 Aug 20 | Edward Olai Osmundson / Ida Emelia Fretheim |
| Osmundson, Jeremiah Fries | 1901 May 13 | Edward Olai Osmundson / Ida Emelia Fretheim |
| Osmundson, Margaret J | 1899 Nov 20 | Brent Friss Osmundson / Tena Andifnson |
| Osteholz, Ada Rebecca | 1898 Sep 01 | Carl William Osterholz / Mary Ann Mueller |
| Osteholz, Ralph | 1919 Dec 25 | John George Osterholz / Anna Bechtel |
| Oster, Arnold Ephfreim | 1893 Oct 17 | Carl E Oster / Ida Mathilda Oster |
| Osterholtz, Ada Rebecca | 1898 Sep 01 | Carl William Osterholz / Mary Ann Mueller |
| Osterholz, Elmer E | 1894 Dec 31 | Carl William Osterholz / Mary Ann Mueller |
| Osterholz, John George | 1893 Sep 07 | Carl William Osterholz / Mary Ann Mueller |
| Osterholz, Lydia Wilhelmina | 1884 Jun 09 | Carl William Osterholz / Mary Ann Mueller |
| Osterholz, Wilhelmina Louise | 1886 Sep 28 | Carl William Osterholz / Mary Ann Mueller |
| Otis, Harvey Rockwell | 1880 Jul 03 | William H Otis / Sarah Ella White |
| Otis, Toucie | 1884 Nov 17 | William H Otis / Sarah Ella White |
| Otto Ludwig Arneson | 1885 Nov 14 | P. O. Arneson / Elizabeth Larson |
| Overhaug, Anna | 1897 Jan | Arne Johnson Overhaug / Gurine Langlie |
| Overhaug, Anna Elizabeth | 1878 Aug 14 | Arne Johnson Overhaug / Gjertu Meismyren |
| Overhaug, Berthe Louise | 1901 Aug 05 | Arne Johnson Overhaug / Gurine Langlie |
| Overhaug, Genora Belinda | 1904 Jul 04 | Sven Overhaug / Inga Holverson |
| Overhaug, Gjertu Katherine | 1882 Aug 19 | Arne Johnson Overhaug / Gjertu Meismyren |
| Overhaug, Gladys Johanna | 1912 Sep 03 | Sven Overhaug / Inga Holverson |
| Overhaug, Gustav Adolph | 1899 Feb 09 | Arna Johnson Overhaug / Gurine Langlie |
| Overhaug, Henry Alexander | 1898 Jul 16 | Sven Overhaug / Inga Holverson |
| Overhaug, Henry Alexander | 1900 Jun 06 | Sven Overhaug / Inga Holverson |
| Overhaug, John Gerhard | 1892 Dec 03 | Arne Johnson Overhaug / Gurine Langlie |
| Overhaug, Julia Mathilda | 1905 Dec 26 | Arne Johnson Overhaug / Gurine Langlie |
| Overhaug, Lewis Marvin | 1916 Oct 24 | Sven Overhaug / Inga Holverson |
| Overhaug, Margarethe Olga | 1911 Jan 03 | Arne Johnson Overhaug / Gurine Langlie |
| Overhaug, Olaf Ingemad | 1894 Nov 27 | Arne Johnson Overhaug / Gurine Langlie |
| Overhaug, Oscar Gustave | 1903 Sep 30 | Arne Johnson Overhaug / Gurine Langlie |
| Overhaug, Ovidia O | 1907 Oct 10 | Arne Johnson Overhaug / Gurine Langlie |
| Overhaug, Stella Joenetta | 1910 Jul 05 | Sven Overhaug / Inga Holverson |
| Overhaug, Sven | 1880 Jun 24 | Arne Johnson Overhaug / Gjertu Meismyren |
| Overlee, Alexander Johanes | 1886 Nov 26 | Arnt M Overlee / Maria Sverine Liekvold |
| Overlee, Almond | 1890 Sep 01 | Arnt M Overlee / Maria Sverine Liekvold |
| Overlee, Axel Selmer | 1894 Jun 23 | Arnt M Overlee / Maria Sverine Liekvold |
| Overlee, Conrad Albert | 1884 Dec 26 | Arnt M Overlee / Maria Sverine Liekvold |
| Overlee, Emelia Juliana | 1882 Mar 21 | Arnt M Overlee / Maria Sverine Liekvold |
| Overlee, Forest Alexander | 1915 May 02 | Alexander Overlee / Emma Butler |
| Overlee, Julia M | 1883 | Arnt M Overlee / Maria Sverine Liekvold |
| Overlee, Laura Matena | 1884 Nov 07 | Arnt M Overlee / Maria Sverine Liekvold |
| Overlee, Selma | 1888 Jun 30 | Arnt M Overlee / Maria Sverine Liekvold |