| Last name | First name | Date died | Location |
| O'Brien | Donald W. | December 21, 1977 | Plot 1731 grave 3 |
| O'Connor | Alida Jay | Unknown | Plot 1484 grave 1 South portion |
| O'Connor | Mary C. | Unknown | Plot 1484 grave 1 North portion |
| Odiorne | Alfred J. | Unknown | Plot 1203 grave 1 South portion |
| Odiorne | Douglas | December 1, 1946 | Plot 1203 grave 3 North portion |
| Odiorne | Elsie P. | July 21, 1951 | Plot 1202 grave 4 South portion |
| Odiorne | Hannah J. | January 6, 1922 | Plot 1203 grave 3 |
| Odiorne | Langdon Coffin | July 11, 1951 | Plot 1202 grave 5 North portion |
| Odiorne | Langdon Coffin, Jr. | July 9, 1932 | Plot 1202 grave 6 North portion |
| Odiorne | Margaret C. | August 29, 1930 | Plot 1202 grave 2 South portion |
| Odiorne | Marion Towne | June 2, 1925 | Plot 1202 grave 1 South portion |
| Odiorne | Mildred | December 9, 1991 | Plot 1202 grave 4 North portion |
| Odiorne | Walter C. | March 12, 1916 | Plot 1203 grave 2 South portion |
| Odiorne | Walter J. | January 1, 1934 | Plot 1202 grave 3 Central portion |
| Oglesby | Clarence O. | May 17, 1981 | Plot 1689 grave 2 South portion |
| Oglesby | Esther Dilks | January 20, 1978 | Plot 1689 grave 1 South portion |
| Ogren | Carl A. | October 6, 1948 | Plot 1295 grave 4 North portion |
| Ogren | Della N. | April 23, 1926 | Plot 1295 grave 3 North portion |
| Ohl | Mary | April 8, 2000 | Plot 378 grave 4 |
| Ohl | Raymond T. | March 5, 1983 | Plot 378 grave 3 |
| Olah | Arpad | March 4, 1953 | Plot 1597 grave 4 North portion |
| Olson | Albert E. | April 27, 1971 | Plot 1738 grave 2 South portion |
| Olson | Ida M. | October 9, 1988 | Plot 1738 grave South portion |
| Olson | Karin I. | August 12, 1979 | Plot 1739 grave 1 South portion |
| Olson | Malvena Mae | March 13, 2003 | Plot 1554 grave 1 South portion |
| Olson | Paul A. | September 4, 1984 | Plot 1554 grave 1 |
| Olson | Robert C. Jr. | June 6, 1978 | Plot 1738 grave 1 South portion |
| Orr | Hannah E. | August 9, 1913 | Plot 311 grave 3 Central portion |
| Orr | Horace | Unknown | Plot 311 grave 2 South portion |
| Orr | James K. | April 3, 1940 | Plot 311 grave 1 South portion |
| Orr | Lizzie | June 25, 1950 | Plot 311 grave 1 South portion |
| Orr | Nellie E. | Unknown | Plot 311 grave 2 South portion |
| Orr | | Unknown | Plot 1288 grave 3 North portion |
| Otis | Catherine | April 1, 1993 | Plot 1600 grave 4 North portion |
| Otis | Frederick Ward | December 29, 1951 | Plot 1600 grave 4 North portion |
| Ott | Andrew | July 23, 1843 | Plot C grave 894 grave 1 South portion |
| Ott | Anna Margaret | September 23, 1844 | Plot C grave 894 grave 4 North portion |
| Ott | Anna Margaret | September 16, 1821 | Plot C grave 894 grave 2 South portion |
| Ott | Annie M. | Unknown | Plot 1171 grave 5 North portion |
| Ott | Catharine | March 6, 1905 | Plot 243 grave 1 South portion |
| Ott | Catharine N. | July 28, 1873 | Plot 9 grave 3 Central portion |
| Ott | Charles S. | June 8, 1955 | Plot 1191 grave 2 South portion |
| Ott | Clara Blanch | November 10, 1869 | Plot 155 grave 3 North portion |
| Ott | Clara Evelyn | December 16, 1946 | Plot 1171 grave 3 North portion |
| Ott | Elizabeth | January 23, 1882 | Plot 10 grave 4 North portion |
| Ott | Ella | October 15, 1860 | Plot 155 grave 3 North portion |
| Ott | Elmer W. | February 22, 1898 | Plot 1170 grave 1 South portion |
| Ott | G. | Unknown | Plot C1003 grave 3 North portion |
| Ott | George | Unknown | Plot 72 grave 4 North portion |
| Ott | George S. | Unknown | Plot 1488 grave 6 |
| Ott | Harold | March 9, 1905 | Plot 1170 grave 4 North portion |
| Ott | Herschel | September 29, 1897 | Plot 1142 grave 2 South portion |
| Ott | Horace | October 4, 1909 | Plot 1171 grave 5 North portion |
| Ott | J. | July , 1888 | Plot 10 grave South portion |
| Ott | Jacob | Unknown | Plot C1003 grave 3 North portion |
| Ott | Jacob | July 3, 1883 | Plot 10 grave 2 South portion |
| Ott | Jacob Ira | January 25, 1888 | Plot 9 grave 4 North portion |
| Ott | Jemima E. | March 16, 1849 | Plot 21 grave 4 North portion |
| Ott | John, Sr. | Unknown | Plot 72 grave 4 North portion |
| Ott | John J. | Unknown | Plot 22 grave 5 North portion |
| Ott | John W. | September 17, 1850 | Plot 10 grave 5 North portion |
| Ott | Joseph | July 30, 1876 | Plot 9 grave 1 South portion |
| Ott | Joseph Roberts | April 20, 1940 | Plot 1171 grave 2 South portion |
| Ott | Lydia Ann | April 22, 1888 | Plot 22 grave 2 South portion |
| Ott | Mabel | April 3, 1989 | Plot 1170 grave 1 North portion |
| Ott | Margaret | October 16, 1958 | Plot 1142 grave 1 South portion |
| Ott | Maria | December 17, 1891 | Plot 10 grave 3 North portion |
| Ott | Mary | December 7, 1860 | Plot 155 grave 2 South portion |
| Ott | Mary | July 12, 1889 | Plot 22 grave 4 North portion |
| Ott | Mary | May 22, 1858 | Plot 10 grave 5 North portion |
| Ott | Mary R. | September 5, 1897 |
|
| Ott | Olive H. | April 23, 1890 | Plot 9 grave 5 North portion |
| Ott | Peter | February 2, 1983 | Plot 1191 grave 1 South portion |
| Ott | Peter | July 23, 1824 | Plot C1002 grave 1 South portion |
| Ott | Peter | May 29, 1891 | Plot 9 grave 5 North portion |
| Ott | Peter, 2nd | May 22, 1841 | Plot C grave 893 grave 4 North portion |
| Ott | Rebecca | January 17, 1841 | Plot C grave 894 grave 5 North portion |
| Ott | Richard B. | October 28, 1860 | Plot 155 grave 2 South portion |
| Ott | Samuel | July 11, 1853 | Plot 21 grave 2 South portion |
| Ott | Sarah | November 17, 1853 | Plot 9 grave 2 South portion |
| Ott | Sarah Ann | March 11, 1849 | Plot 21 grave 4 North portion |
| Ott | Sophia Cathr | May 20, 1810 | Plot C1002 grave 2 South portion |
| Ott | Susan Marie | Unknown | Plot 155 grave 4 North portion |
| Ott | Susanna Irene | January 30, 1853 | Plot 155 grave 4 North portion |
| Ott | Susannah | April 3, 1880 | Plot 21 grave 2 South portion |
| Ott | W.H.H. | January 28, 1905 | Plot 155 grave 1 South portion |
| Ott | Wallace J. | December 23, 1904 | Plot C grave 894 grave 3 Central portion |
| Ott | | Unknown | Plot 9 grave 1 South portion |
| Ouellette | Angelina M. | November 2, 1975 | Plot 1583 grave 4 |
| Overly | Catherine | October 25, 1954 | Plot 1680 grave 4 North portion |
| Overly | David D. | November 23, 1954 | Plot 1680 grave 3 North portion |
| Owen | Elizabeth H. | April 27, 1955 | Plot 4 grave 3 North portion |
| Owens | Alice | February 28, 1988 | Plot 1187 grave North portion |
| Owens | Robert Ellsworth | December 22, 1995 | Plot 1187 grave 3 North portion |
| Owens | Robert J. | July 12, 1943 | Plot 1189 grave 1 South portion |
| Owens | Sarah | December 4, 1948 | Plot 1189 grave 1 South portion |
