| NAME | SEX | BORN | PLACE | DIED | BURRIED | FATHER | MOTHER | SPOUSE/Civil Condition | |
| Oakerson, Alfred Todd | DC# 33817 | M | 1843 | KY | 30-Nov-25 | Burr Oak | Oakerson, Wm | Landingham, Mary Van | Caroline A |
| Oakerson, Caroline A. | DC# 15739 | F | 1847 | IND | 28-May-25 | Burr Oak | Hunt, Miles | Botkins, Mary | A. T |
| Oakerson, Mary Ann | DC# 27445 | F | 1930 | MO | 3-Aug-30 | Miriam | Oakerson, Raymond | Dewitt, Gladys | Single |
| O'Banion, Benjaman Allen | DC# 38335 | M | 1836 | MO | 25-Oct-16 | Monroe | O'Banion, Unknown | Williams, Mary | Married |
| Obanion, Beondena | DC# 42028 | F | 1914 | MO | 8-Nov-37 | Monroe | Obanion, Francis M | Bell, Lennia | Single |
| Obanion, Mary E. | DC# 42006 | F | 1861 | ILL | December _, 1945 | Oak Lawn | Schoonover, John | Unknown , Unknown | William H |
| Obanion, William H. | DC# 27713 | M | 1856 | MO | August _, 1950 | Oak Lawn | Obanion, Allen | McCauley, ? | Mary Ellen |
| Obannion, Christann | DC# 27494 | F | 1840 | MO | 20-Jul-36 | Monroe | Laffoon, Payton | Church, ? | Benjamin Allen |
| O'Bannon, Chester Arthur | DC# 2528 | M | 1891 | MO | 14-Jan-19 | Jackson, ?? | O'Bannon, James H | Slagle, Nancy B | Married |
| Obannon, Ellis A. | DC# 28097 | M | 1910 | MO | August _, 1945 | Oak Lawn | Obannon, Eldridge | Deaton, Nona | Mildred |
| O'Beirn, Katherine | DC# 17698 | F | 1841 | CAN | 4-May-19 | Lenox, IA | Deaveroux, Martin | McCullough, ? | Thomas |
| O'Beirn, Thomas | DC# 17703 | M | 1838? | IRE | 25-May-19 | Lenox, IA | O'Beirn, Unknown | Unknown , Unknown | Widowed |
| Oberhauser, Merrilees E. | DC# 17086 | F | 1926 | MO | May _, 1948 | Hopkins | Godsey, David | Thompson, Helen | Norman |
| Oberlander, Amanda E. | DC# 25786 | F | 1853 | MO | July _, 1953 | Oak Hill | Stephenson, James M | Shelton, Arena | Widowed |
| Obertt, George | DC# 23713 | M | 1882 | ILL | 6-Jul-30 | Tarkio, MO | Obertt, Leonard | Bell, Elizabeth | Cora |
| O'Brien, Annie | DC# 24678 | F | 1849 | IRE | 31-Aug-10 | Conception | Nolan, Timothy | Langon, Margaret | Married |
| Obrien, Catherine | DC# 41281 | F | 1881 | MO | 27-Nov-57 | St Columba | Obrien, James | Nolan, Anne | Single |
| Obrien, Catherine M. | DC# 43350 | F | 1884 | ILL | December _, 1940 | Conception | McCaffrey, Patrick H. | McGann, Ellen | Thos |
| O'Brien, James | DC# 20991 | M | 1844 | IRE | 8-Jul-10 | Conception | O'Brien, Dennis | Hickey, Bridget | Kate? |
| O'Brien, John | DC# 26129 | M | 1886 | MO | 3-Aug-61 | St Columba | O'Brien, Janes | Nolan, Anne | Never Married |
| Obrien, Mary | DC# 38176 | F | 1882 | MO | November _, 1954 | St Columba | Obrien, James | Nolan, Anne | Single |
| Ochs, Sister Mary Elizabeth | DC# 18632 | F | 1867 | MO | 18-Jun-25 | St Marys | Ochs, John | Brusel, Elizabeth | Single |
| Ocker, Mary Catherine | DC# 31939-a | F | 1838 | ILL | 4-Sep-16 | Maitland | Kraft, Dettleff | Eckert, Margaret Elizabeth | Widowed |
| O'Connel, Catherine Jane | DC# 13926 | F | 1900 | MO | 7-Apr-13 | St Patricks | O'Connel, Cornelius | Riley, Anna O | Single |
| Oconnell, Bridgett M. | DC# 32904 | F | 1862 | IRE | September _, 1938 | Maryville | McNee, John | Unknown , Unknown | John |
| O'Connell, Catherine | DC# 5564 | F | 1838 | IRE | 26-Feb-14 | St Patricks | Kenealy, ? | Unknown , Unknown | Widowed |
| O'Connell, Cornelius P. | DC# 37501 | M | 1867 | VA | November _, 1948 | St Patricks | O'Connell, JEREMIAS | Unknown ?, Kathryn | Widowed |
| OConnell, John | DC# 22176 | M | 1862 | D.C. | 18-Jun-29 | St Patricks | OConnell, Jerry | Kenala, Katie | Bridget |
| O'Connell, Magdalen | DC# 9935 | F | 1895 | MO | 17-Mar-61 | St Patricks | Sullivan, James | Walters, Elizabeth | Jerry O'Connell |
| O'Connell, Mary M. | DC# 8795 | F | 1925 | MO | 8-Mar-25 | St Patricks | O'Connell, Jerry | Sullivan, Madeline | Single |
| O'Conner, David T. | DC# 27905 | M | 1874 | PA | August _, 1946 | St Columba | O'Conner, Thomas | Oakly, Julia | Mary Growney |
| O'Connor, Catherine | DC# 37902 | F | 1864 | MO | November _, 1950 | St Columba | Farman, Christopher | malley, Catherine O | Widowed |
| Oconnor, Dennis J. | DC# 38988 | M | 1858 | IRE | November _, 1941 | Conception | Oconnor, Thomas | Cokley, Julian | Kate |
| O'Connor, Jerima | DC# 47729 | M | 1848 | MO | 26-Dec-18 | Conception | O'Connor, John | Unknown , Unknown | Widowed |
| Oconnor, Lawrence | DC# 22821 | M | 1908 | MO | June _, 1939 | Conception | Oconnor, David | Grormey, Mary | Single |
| Oconnor, Mary E. | DC# 28419 | F | 1876 | MO | August _, 1954 | St Columba | Growney, John G | Farnan, Mary Ann | Widowed |
| O'Day, Ambrose John | DC# 30215 | M | 1910 | MO | 18-Aug-61 | St Patricks | O'Day, Thomas | Miller, Vesta May | Mildred |
| Oday, John M. | DC# 9281 | M | 1864 | ILL | March _, 1952 | St Joseph's | Oday, Thomas | Maney, Nora | Catherine Boedeker |
| O'Day, Thomas | DC# 17535 | M | 1869 | ILL | May _, 1946 | St Patricks | O'Day, Thomas | Maney, Nora | Vesta |
| Oday, Thomas M. | DC# 15441 | M | 1938 | MO | April _, 1938 | Parnell | Oday, Edward | McLarney, Mary | Single |
| O'Day, Vesta M. | DC# 15349 | F | 1877 | MO | April _, 1944 | St Patricks | Miller, George | Ricketts, Ida Lorinda | Thos |
| Odermatt, Rev. Basil Joseph | DC# 17367 | M | 1857 | SWITZ | June _, 1952 | St Columba | Odermatt, Francis | Christen, Aloysia | Single |
| Odilia, Sister Mary Schildknecht | DC# 30410 | F | 1863 | SWITZ | 6-Sep-33 | Convent | Schildknecht, John Joseph | Zeller, Maria Agatha | Single |
| Odonnell, Clara | DC# 10287 | F | 1875 | MO | 30-Mar-59 | St Columba | Diss, William | Doran, Amelia | Hugh |
| O'Donnell, Cornelius T. | DC# 31443 | M | 1861 | MO | 11-Sep-10 | Conception | O'Donnell, James H | Hickey, Margaret | Mary? |
| Odonnell, Hugh J. | DC# 22338 | M | 1876 | PA | June _, 1941 | Conception | Odonnell, Patrick | McClennen, Mary | Clara |
| O'Donnell, James | DC# 24667 | M | 1825 | IRE | 19-Aug-10 | Conception | O'Donnell, Cornelius | Teafis, Johanna | Married |
| ODonnell, Joseph J. | DC# 11681 | M | 1881 | MO | 29-Mar-29 | Conception | ODonnell, Patrick | McLarnon, Mary | Margaret |
| Odonnell, Margaret T. | DC# 20395 | M | 1882 | IA | June _, 1949 | St Patricks | O'Grady, Daniel | Ryan, Mary Jane | Widowed |
| O'Donnell, Mary | DC# 23145 | F | 1867 | IRE | 15-Jul-26 | Conception | , Patrick | Unknown , Unknown | Cornelius |
| O'Donnell, Mary Ann | DC# 10836 | F | 1845 | IRE | 31-Mar-19 | Conception | McClarnen, ? | Morris, ? | Patrick |
| O'Donnell, Sarah M. | DC# 5562 | F | 1839 | MO | 13-Feb-15 | Conception | Smith, Anderson | Unknown , Unknown | Widowed |
| Odoughtery, Ruth N. | DC# 40892 | F | 1933 | MO | 28-Dec-33 | New Hope | Odoughtery, Everett | Gibson, Rosetta | Single |
| Ogden, Eugene J. | DC# 15103 | M | 1853 | ILL | May _, 1942 | Miriam | Ogden, Rufus | Wiber, Narcissa | Ida Balden |
| Ogden, Ida Beldine | DC# 25366 | F | 1863 | ILL | 29-Jul-29 | Miriam | Beldine, Daniel | Lockwood, Rachel A | Eugene |
| Ogden, Marylin S. | DC# 40889 | F | 1931 | MO | 4-Dec-33 | Miriam | Ogden, Homer | Hankens, Susie | Single |
| Ogg, George | DC# 26038 | M | 1846 | OH | 5-Jul-17 | Centenary | Ogg, Benjamin | George, Sarah | Married |
| Ogier, George Elden | DC# 25261 | M | 1909 | OH | 30-Jul-16 | Barnard | Ogier, H. E. | McNoal, Lottie | Single |
| Ogle, Nina May | DC# 15374 | F | 1903 | OH | 6-Apr-16 | Barnard | Ogle, H. E. | McNeal, Lottie E | Single |
| Oglesby, Elizabeth | DC# 7632 | F | 1861 | ILL | March _, 1938 | Ravenwood | Wilson, Thomas | Unknown , Unknown | Walker |
| O'Grady, Daniel | DC# 31077 | M | 1842 | IRE | 22-Oct-27 | St Patricks | O'Grady, Michael | Neill, Mary O | Ella? |
| Ogrady, Mary J. | DC# 27199 | F | 1852 | CAN | 17-Aug-35 | St Patricks | Ryan, M. | Grealish, M. | D. |
| O'Grady, Ray | DC# 46958 | M | 1892 | IA | 15-Dec-60 | St Patricks | O'Grady, Daniel | Ryan, Mary Jane | Edna |
| O'Hein, Minnie | DC# 6601 | F | 1857 | ILL | February _, 1946 | St Louis, MO | Schultz, Martin | Tarbole, Katherine | Henry |
| O'Howell, Charley | DC# 15116 | M | 1870 | MO | 22-Apr-31 | Barnard | O'Howell, John | Stingley, Eliza | Single |
| Ohowell, John T. | DC# 18626 | M | 1860 | MO | May _, 1942 | Luteston | Ohowell, John | Jackson, Mary Ann | Annie |
| O'Howell, Sarilda A. | DC# 6783 | F | 1861 | MO | July _, 1944 | Luteston | Dixon, William | Burns, Sarah | John T |
| O'Howell, Sarilda A. | DC# 25333 | F | 1861 | MO | 22-Jul-44 | Luteston | Dixon, William | Burns, Sarah | John T |
| Oldfield, Elmer E. | DC# 25664 | M | 1865 | OH | July _, 1943 | Hamilton, MO | Oldfield, Allen | Unknown , Unknown | Widowed |
| Oldham, Mary | DC# 38979 | F | Unk | VA | 24-Nov-17 | Ohio Cem | Davis, ? | Unknown , Unknown | Widowed |
| Oldham, Obidiah | DC# 42164 | M | 1852 | OH | 19-Dec-17 | Ohio Cem | Oldham, J. B | Davis, Mary | Single |
| Oldham, William | DC# 29616 | M | 1862 | OH | August _, 1938 | Burlington Jct | Oldham, Joseph B | Davis, Mary | Single |
| Oliphant, Richard A. | DC# 39033 | M | 1842 | IND | 3-Dec-10 | West Union | Oliphant, Thomas | Carmichal, Nancy | Married |
| Oliphant, Richard B. | DC# 17178 | M | 1871 | IND | May _, 1956 | Oak Hill | Oliphant, R. A | Simpson, Mary Catherine | Hannah Simmons |
| Oliver, Elmer W. | DC# 2343 | M | 1840 | OH | 22-Jan-17 | Burlington Jct | Oliver, ? | Unknown , Unknown | Married |
| Oliver, Harold I. | DC# 32376 | M | 1926 | MO | 7-Oct-26 | Guilford, MO | Oliver, M. J. | Marten, Eliza A | Single |
| Oliver, Ruth Ann | DC# 2344 | M | 1835 | IND | 26-Jan-17 | Red Oak, IA | Oliver, Henry | Unknown , Unknown | Widowed |
| Olmsted, Claude R. | DC# 17549 | M | 1886 | NE | April _, 1946 | Overton, NE | Olmsted, Wm W | Stanbers, Helen A | Lucy Ann |
| Olmsted, Eleanor | DC# 23659 | F | 1832 | PA | 5-Jul-13 | Hopkins | Hipple, Frederick | Unknown , Unknown | Widowed |
| Olmsted, Franklin A. | DC# 9439 | M | 1856 | OH | 2-Mar-32 | Hopkins | Olmsted, James W | Hipple, Mary Ellen | Maggie |
| Olmsted, Frederick L. | DC# 20407 | M | 1858 | OH | May _, 1949 | Hopkins | Olmsted, James W | Hipple, Eleanor | Elizabeth |
| Olmsted, James Wilson | DC# 21923 | M | 1832 | OH | 6-Jun-11 | Hopkins | Olmsted, Arrora | Bush, Eliza | Married |
| Olmsted, Maggie A. | DC# 33628 | F | 1868 | IND | October _, 1948 | Hopkins | Baldwin, Albert | Stoddard, Mary | Frank |
| Olson, May A. | DC# 24570 | F | 1902 | IA | July _, 1945 | College Springs, IA | Nelson, Peter | Swanson, Matilda | Einer Emanuel |
| Oman, Harriett J. | DC# 11390 | F | 1836 | PA | 10-Mar-11 | Miriam | Hower, John | Davis, Rebecca | Widowed |
| Oneal, Edna E. | DC# 2150 | F | 1882 | MO | January _, 1952 | Miriam | Oneal, Joseph E | Peck, Katherine A | Single |
| Oneal, Ella V. | DC# 35408 | F | 1867 | ILL | October _, 1943 | IOOF-Quitman | Early, Joseph E | Lay, Lucy | James |
| O'Neal, James R. | DC# 33825 | M | 1861 | ILL | 18-Nov-23 | Quitman | O'Neal, Unknown | Unknown , Unknown | Ella |
| O'Neal, Katherine A. | DC# 31411 | F | 1851 | ILL | October _, 1944 | Miriam | Peck, Sidney A | Stanton, Eliza A | Joseph E |
| Oneal, Williard | DC# 20202 | M | 1930 | MO | 29-May-36 | Stanberry, MO | Oneal, William S | Brown, Mona | Single |
| Oneale, Hattie | DC# 29823 | F | 1866 | IND | August _, 1939 | Stanberry, MO | Simpson, Thomas | Caster, Rebecca | Charley |
| Onstot, Infant Male | DC# 36775 | M | 1912 | MO | 10-Nov-12 | Wilcox | Onstot, Jesse B | Heflin, Lula | Single |
| Onstot, James S. | DC# 31445 | M | 1838 | KY | 9-Sep-10 | Wilcox | Onstot, Levi | Ball, Inda | Married |
| Orcutt, Emma E. | DC# 17299 | F | 1865 | IA | 19-May-33 | Miriam | Shroff, Samuel T | Unknown , Unknown | Widowed |
| Orcutt, Frank E. | DC# 16890 | M | 1860 | WIS | 5-May-30 | Miriam | Orcutt, Henry | Orcutt, Laura | Emma |
| Orear, Edwin G. | DC# 3596 | M | 1858 | KY | January _, 1938 | Breckenridge, MO | Orear, Unknown | Unknown ?, Josephine | Widowed |
| Orear, Elias D. | DC# 13434 | M | 1923 | IA | 7-Apr-23 | Miriam | Orear, Wm C | Wilcox, Mary A | Mary B |
| Orear, Mary Francis | DC# 19382 | F | 1860 | MO | 7-Jun-23 | Miriam | B, Jas | Shewmaker, Mary | E. D. |
| Oreilly, Bernard F. | DC# 11509 | M | 1890 | PA | March _, 1942 | Conception | Oreilly, Mathew | Unknown ?, Phellomena | Single |
| O'Reilly, Philomence | DC# 2281 | F | 1861 | PA | 30-Jan-31 | Conception | Wanner, Ferdinand | Unknown , Unknown | Mathew |
| Oren, Angeline | DC# 42186 | F | 1844 | OH | 26-Dec-17 | New Point | Pallock, David | Keple, Julia Ann | Widowed |
| Orick, Henry L. | DC# 20954 | M | 1861 | VA | June _, 1945 | Barnard | Orick, Benjamin | Hayes, Rebecca | Sarah Yeary |
| Orick, Sarah E. | DC# 27797 | F | 1858 | VA | August _, 1942 | Barnard | Yeary, John | Brown, Elizabeth | Henry |
| Oriley, Cora P. | DC# 31339 | F | 1890 | IA | October _, 1954 | Hopkins | Schaffer, Jacob | Eberle, Mary | Wilfred |
| Oriley, Edgar P | DC# 19139 | M | 1884 | MO | 31-May-58 | St Patricks | Oriley, John | Edgar, Margaret | Rinda Linville |
| O'Riley, Eva A. | DC# 12032 | F | 1890 | MO | 3-Apr-24 | St Patricks | McMahon, James | McIntosh, Mary | Leo |
| O'Riley, Frederick Joseph | DC# 16266 | M | 1918 | MO | 5-May-60 | St Patricks | O'Riley, Francis | Linville, Margaret | Mary L Schwebach |
| O'Riley, Infant Male | DC# 5715 | M | 1928 | MO | 16-Feb-22 | St Patricks | O'Riley, J. A | Bagby, Beotrey | Single |
| O'Riley, Infant Male | DC# 17959 | M | 1928 | MO | 28-May-28 | St Patricks | O'Riley, J A | Bagley, Betina | Single |
| Oriley, James L. | DC# 42417 | M | 1945 | MO | December _, 1951 | St Patricks | Oriley, Phillip F | Miller, Maxine | Single |
| O'Riley, John William | DC# 30071 | M | 1918 | MO | 7-Sep-18 | St Patricks | O'Riley, Jos H | Russell, Ora May | Single |
| O'Riley, Margrett | DC# 8204 | F | 1854 | IRE | 14-Feb-20 | St Patricks | Edgar, Jas | McClennon, ? | John |
| O'Riley, Marguerite Lucile | DC# 1991 | F | 1922 | MO | 7-Jan-23 | St Patricks | O'Riley, Frank | Rodgers, Mary | Single |
| O'Riley, Ora May | DC# 28471 | F | 1878 | MO | 11-Aug-29 | St Patricks | Russell, Alexander | Sharp, Delia | Henry |
| O'Riley, Infant Male | DC# 17959 | M | 1922 | MO | 28-May-28 | St Patricks | O'Riley, Francis P | Linville, Maggie | Single |
| O'Riley, Infant Male | DC# 5715 | M | 1922 | MO | 16-Feb-22 | St Patricks | O'Riley, Francis P | Linville, Maggie | Single |
| Orman, Elmer A. | DC# 34745 | M | 1876 | IA | October _, 1954 | Osceola, IA | Orman, Martin | Hawk, Mary | Minnie |
| Orman, Infant Female | DC# 5429 | F | 1926 | MO | 19-Feb-26 | Osceola, IA | Orman, Elmer | Ferbur, Minnie | Single |
| Orme, Arria E. | DC# 41835 | F | 1871 | ILL | December _, 1954 | Bedford, IA | Bardner, Alfred | Scrivner, Harriet | Elmer |
| Orme, Daisy E. | DC# 27798 | F | 1882 | NC | August _, 1942 | Hopkins | Shores, James | Harris, Safronia | James Albert |
| Orme, Martha Matilda | DC# 5908 | F | 1853 | IND | February _, 1934 | Hazel Dell | Carmichiel, Augusta | Burch, Mahala | Nathaniel |
| Orme, Nathaniel | DC# 11637 | M | 1853 | MO | February _, 1944 | Hazel Dell | Orme, William | Unknown , Unknown | Martha Carmichael |
| Orme, William E. | DC# 12821 | M | 1879 | MO | April _, 1954 | Monrovia, CA | Orme, Fielding H | Criger, Talithe E | Grace |
| Orr, Henrietta L. | DC# 11888 | F | 1853 | MO | March _, 1940 | Ravenwood | Stingley, Adelina | Stingley, Mariah | Fred |
| Orr, LeRoy J. | DC# 21091 | M | 1853 | IND | 6-Jul-24 | Emporia, KS | Orr, Wm A | Kimmel, Elizabeth | Maddie |
| Orr, Lou A. | DC# 35165 | F | 1876 | MO | October _, 1947 | Oak Hill | Garrett, William T | Leffler, Josephine M | Jack |
| Osbern, Infant Female | DC# 35870 | F | 1917 | MO | 23-Oct-17 | Swinford | Osbern, C. O | Hellen, Marie | Single |
| Osborn, Alexander | DC# 29227 | M | 1848 | OH | August _, 1940 | Cain Cem | Osborn, William Thomas | Unknown , Unknown | Sarah Booth |
| Osborn, Anna | DC# 18581 | F | 1876 | MO | May _, 1941 | Oak Hill | Osborn, Wm | Snodderly, Rebecca | Single |
| Osborn, Joseph H. | DC# 42276 | M | 1870 | IA | December _, 1956 | Taylor Co, IA | Osborn, Jason | Baker, Mary | Single |
| Osborn, William M. | DC# 3622 | M | 1862 | OH | January _, 1941 | Ohio Cem | Osborn, Cassius | Gibbs, Mary Ann | Single |
| Osborn, Infant Female | DC# 35870 | F | 1917 | MO | 24-Sep-17 | Swinford | Osborn, C. O | Heller, Marie | Single |
| Osburn, Aaron | DC# 8425 | M | 1909 | VA | 17-Mar-24 | Barnard | Osburn, J. K. | Kinser, Elsie | Single |
| Ostrander, Charles A. | DC# 22167 | M | 1873 | OH | June _, 1944 | Sheridan, MO | Ostrander, H. B | Franklin, Hanna | Elizabeth |
| Oswald, Francis H. | DC# 29818 | M | 1868 | MO | August _, 1939 | Green Hill | Oswald, Henry | Unimissing, Francis | Married |
| Otis, Christine A. | DC# 36552 | F | 1851 | OH | 12-Nov-32 | Burlington Jct | Otis, Edward | Cartrell, Katherine Ann | Single |
| Otis, Roland E. | DC# 31935 | M | 1909 | MO | 15-Sep-16 | White Oak | Otis, Irvin | Raichert, Ruby | Single |
| Otts, Jasper N. | DC# 37350 | M | 1861 | IA | 8-Nov-33 | White Oak | Otts, Merril | Meyers, Farmer | Eunice C |
| Oursler, Marie E. | DC# 2181 | F | 1886 | NE | February _, 1954 | Radcliffe, IA | Hake, George | Unknown , Unknown | Wm R |
| Ousley, Charlotte | DC# 22601 | F | 1835 | KY | 30-Jun-20 | Oak Hill | Graves, ? | Unknown , Unknown | Widowed |
| Oustott, Lueretia J. | DC# 37590 | M | 1849 | MO | 21-Dec-20 | Wilcox | Adams, Evans | Bates, Eliza | Widowed |
| Outs, Amelia | DC# 42626 | F | 1856 | ILL | December _, 1941 | Miriam | , Unknown | Unknown , Unknown | John |
| Outs, Mertie Velvadine | DC# 19602 | F | 1914 | MO | 4-Jun-15 | Pleasant Grove | Outs, Jacob | Cox?, Myrtle | Single |
| Outs, Taalke | DC# 1895 | F | 1842 | GER | 2-Jan-14 | Pleasant Grove | Myer, Elbert | Unknown , Unknown | Out? |
| Outz, Out | DC# 34232 | M | 1842 | GER | 28-Nov-27 | Pleasant Grove | Outz, Varner | Unknown ?, Bettie | Taalke Myers |
| Overlay, Charley O. | DC# 31216 | M | 1888 | MO | September _, 1949 | Maitland | Overlay, Henry | Hisel, Laura | Lenora McMahon |
| Overlay, George W. | DC# 38262 | M | 1876 | MO | November _, 1951 | Mt Hope-Mound City | Overlay, Henry | Hisel, Laura | Nellie May |
| Overman, Doris F. | DC# 33116 | F | 1909 | IA | September _, 1939 | Parnell | Holmes, Loren Arthur | Trager, Josephine | Don Arthur |
| Overman, Infant Male | DC# 29826 | M | 1939 | MO | August _, 1939 | Parnell | Overman, Don A | Holmes, Dorris | Single |
| Overman, Rachel | DC# 9628 | F | 1842 | OH | 11-Mar-22 | Dunkard | West, Benjamin | Unknown , Unknown | Widowed |
| Overmier, Charles C. | DC# 34584 | M | 1890 | IA | 14-Oct-29 | IOOF-Maryville | Overmier, Jacob | Jones, Leah | Lulu Belle Allen |
| Overmier, Infant Male | DC# 13287 | M | 1922 | MO | 15-Apr-22 | Hopkins | Overmier, C. C | Allen, Lulu B | Single |
| Overmier, Tarrisa | DC# 31441 | F | 1842 | OH | 11-Sep-10 | Miriam | Eversole, Jacob A | Yonkman, Catherine | Jacob Calvin? |
| Overmyre, Noah J. | DC# 29368 | M | 1836 | OH | 15-Aug-17 | Miriam | Averuyn, Jno | Hainrner, Ester | Widowed |
| Owen, Anna | DC# 1973 | F | 1872 | MO | January _, 1951 | Oak Hill | Williams, William | Edwards, Winifred | George L |
| Owen, George | DC# 9101 | M | 1867 | WIS | 30-Mar-27 | Maryville | Owen, Jno R | Evans, Mary | Anna Williams |
| Owen, William Byron Jr. | DC# 11699 | M | 1928 | MO | 19-Mar-29 | Oak Hill | Owen, Byron | Price, Matie A | Single |
| Owens, Alfred A. | DC# 33506 | M | 1866 | IA | 2-Oct-35 | Hopkins | Owens, James | Baker, Elizabeth | Dickie |
| Owens, Amanda J. | DC# 20207 | F | 1852 | MO | 1-May-36 | Hopkins | Renfro, Skelton | Weaver, Mary | Daniel J |
| Owens, Betty Jane | DC# 5795 | F | 1927 | MO | 21-Feb-28 | Burr Oak | Owens, Roy Manford | Fullerton, Helen Milvina | Single |
| Owens, Carl Henry | DC# 35187 | M | 1916 | MO | 24-Oct-31 | Hopkins | Owens, Alfred Bardner | Owen, Dixie | Single |
| Owens, Charlie P. | DC# 42522 | M | 1872 | MO | December _, 1947 | Hopkins | Owens, Daniel | Renfro, Amanda | Single |
| Owens, Clarence William | DC# 26130 | M | 1883 | MO | 30-Jul-61 | Miriam | Owens, John | Linville, Lucinda | Cordelia Raines |
| Owens, Doyle T. | DC# 3234 | M | 1927 | MO | January _, 1940 | Barnard | Owens, Orbin Clinton | Beattie, Mary Ellen | Single |
| Owens, Edna Frances | DC# 30691 | F | 1888 | MO | 13-Oct-25 | Hopkins | Brown, Felix G | Henderson, Ellen L | Edgar |
| Owens, George L. | DC# 19128 | M | 1881 | KY | May _, 1940 | Oak Hill | Owens, George | Unknown , Unknown | 2) Mabel Marie Joy Hannah |
| Owens, George W. | DC# 34276 | M | 1910 | MO | November _, 1950 | Hillcrest | Owens, Jacob | Orick, Rebecca | Single |
| Owens, Harley J. | DC# 8190 | M | 1881 | MO | 17-Feb-20 | Hopkins | Owens, M. C | Witt, Zarilda | Deema Hindry |
| Owens, Henry E. | DC# 34182 | M | 1876 | MO | October _, 1955 | Hillcrest | Owens, John | Ramsey, Margaret | Katie May Gale |
| Owens, Infant Female | DC# 9630 | F | 1922 | MO | 21-Mar-22 | Skidmore | Wm, Clarence | Rains, Cordelia | Single |
| Owens, Infant Male | DC# 16819 | M | 1914 | MO | 10-May-14 | Bethany | Owens, Jake C | Orick, Rebecca M | Single |
| Owens, John | DC# 27114 | M | 1867 | NY | August _, 1955 | Graham | Owens, Daniel | Jones, Mary | Lula F Kennedy |
| Owens, John Flavel | DC# 1741 | M | 1908 | MO | 14-Jan-25 | Miriam | Owens, Dallas | Logan, Lura B | Single |
| Owens, Katherine L. | DC# 1977 | F | 1927 | MO | 22-Jan-27 | Barnard | Owens, Orbin Clinton | Beattie, Mary Ellen | Single |
| Owens, Larry D. | DC# 23061 | M | 1947 | MO | July _, 1955 | Hopkins | Owens, Dale | Wilson, Doris | Single |
| Owens, Leera B. | DC# 42968 | F | 1887 | MO | December _, 1952 | Miriam | Logan, Jim | Purdue, Frances | Dallas |
| Owens, Lucinda Ellen | DC# 27550-a | F | 1853 | MO | 1-Aug-20 | Groves | Luiville, Abraham | Patten, Lydia Ann | John |
| Owens, Lula F. | DC# 5594 | F | 1869 | MO | March _, 1950 | Graham | Kenady, James | Lane, Nancy Ellen | John |
| Owens, Lynn Wood | DC# 5956 | M | 1918 | MO | 11-Feb-18 | Hopkins | Owens, Edgar R | Brown, Edna | Single |
| Owens, Mary C. | DC# 36963 | F | 1852 | MO | 7-Nov-13 | Dearborn, MO | R, Thos | Meadows, Mary C | Frank? |
| Owens, Rosa M | DC# 6618 | F | 1871 | MO | 29-Jan-58 | Hopkins | Owens, Daniel J | Renfro, Amanda | Single |
| Owens, Warren | DC# 24663 | M | 1907 | MO | 1-Aug-10 | Bethany | Owens, Henry | Owens, Elizabeth | Single |
| Oxley, Betty J. | DC# 48647 | F | 1936 | MO | 6-Jul-36 | Page Co., IA | Oxley, George | Calter, Agnes | Single |
| Oxley, Carrie Elenora | DC# 13548 | F | 1888 | MO | 13-Apr-15 | Maryville | Logan, G. N | Riney, Elizabeth | Married |
| Oxley, Edith M. | DC# 2367 | F | 1882 | ENG | January _, 1953 | Page Co., IA | Bix, George | Unknown , Unknown | Abram Oxley |
| Oxley, Harriet W. | DC# 14389 | F | 1841 | OH | 21-Apr-12 | Hopkins? | McFarland, Moses | McClelland, Sarah | Widowed |
| Oziah, Weldon E. | DC# 10020 | Male | 1881 | IA | 18-Mar-35 | Shenandoah, IA | Oziah, Lucius | Beeman, Jane | Stella |