| NAME | BORN | DIED | COMMENTS | LOCATION |
| Oberg, Anita L. | 7/2/1925 | 7 | ||
| Oberg, Douglas J. | 2/25/1918 | 4/9/1980 | 7 | |
| Oberg, Margaret B. | 9/6/1892 | 1/15/1969 | 6 | |
| Oberg, Noel L. | 10/29/1894 | 3/2/1970 | 6 | |
| O'Brien, Catherine | 1873 | 1952 | 4 | |
| O'Brien, D.F. | 1868 | 1913 | 4 | |
| O'Brien, Elaine Y. | 1919 | 7 | ||
| O'Brien, Hannah Gould | 1836 | 1919 | 4 | |
| O'Brien, John T. | 1864 | 1947 | 4 | |
| O'Brien, Margaret | 1859 | 1932 | Mother | 3 |
| O'Brien, Patrick | 1849 | 1933 | Father | 3 |
| O'Brien, Thomas | 1834 | 6/12/1902 | Born in Cork, Ireland | 4 |
| O'Brien, Walter J. | 1919 | 1983 | 7 | |
| O'Connell, Agnes C. | 1888 | 1980 | 5 | |
| O'Connell, Daniel Jr. | 1885 | 1919 | 3 | |
| O'Connell, Daniel Sr. | 1855 | 1918 | 3 | |
| O'Connell, Edward J. | 2/19/1893 | 9/14/1965 | ILL. SFC Quartermaster Corps WWI | 6 |
| O'Connell, Eugene C | 1910 | 1925 | 3 | |
| O'Connell, Eugene J. | 1890 | 1923 | 3 | |
| O'Connell, Frank | 1888 | 1918 | Vet of WWI | 3 |
| O'Connell, Jane Kelly | 1858 | 1929 | 3 | |
| O'Connell, John | 1/4/1912 | 11/9/1912 | Son of D & R | 3 |
| O'Connell, John H. | 1894 | 1977 | 5 | |
| O'Connell, Kathryn G | 1889 | 1966 | 3 | |
| O'Connell, Lawrence | 1901 | 1936 | 3 | |
| O'Connell, Myme | 1883 | 1936 | 3 | |
| O'Connell, Ruth | 1883 | 1978 | 3 | |
| Odenthal, John E. | 1882 | 1969 | 2 | |
| Odenthal, Margaret J. | 1844 | 1978 | 2 | |
| O'Hair, Peter | 8/15/1835 | 6/17/1909 | Sergt Co. B. 6 Indiana Inf. | 1 |
| O'Hare, Caroline | 1867 | 1937 | 2 | |
| O'Hare, Dennis | 1869 | 1923 | 2 | |
| Ohda, Julia M. | 1916 | 1983 | 8 | |
| Ohda, William C. | 12/7/1911 | 11/24/1989 | St. US Army WWII | 8 |
| Ohmans, Regina M. Hurley | 6/1/1952 | 5/3/1977 | 3 | |
| Olalde, Anita T. | 12/30/1923 | 8/3/1996 | 7 | |
| Olalde, Esperanza C | 8/5/1921 | 1/6/1995 | Married 5/16/1948 Wife of Librado Olalde | 7 |
| Olalde, Francisco | 6/23/1954 | 2/19/1978 | 7 | |
| Olalde, Isabel | 12/1/1898 | 1/25/1957 | 5 | |
| Olalde, Juan E. | 5/15/1896 | 8/21/1987 | 5 | |
| Olalde, Librado | 11/5/1927 | Married 5/16/1948 Husband of Esperanza C Olalde | 7 | |
| Olalde, Maria Cleotilde | 11/16/1934 | 4/21/1979 | 5 | |
| Olalde, Marta | 11/30/1963 | 2/16/1978 | 7 | |
| Olalde, Mary Ann | 6/25/1958 | 8/15/1958 | 3 | |
| Olalde, Simon P. | 6/1/1920 | 3/6/1996 | 7 | |
| Olson, Aaron Job | 3/16/1974 | 3 | ||
| Olson, Vernon J. | 10/21/1924 | 9/19/1988 | DC3 U.S. Navy WWII | 7 |
| O'Malley, Donald J | 6/22/1913 | 3/24/1972 | 6 | |
| O'Malley, Frances F. | 10/29/1898 | 11/19/1965 | 5 | |
| O'Malley, John D | 1884 | 1956 | 6 | |
| O'Malley, Joseph M. | 4/27/1891 | 4/20/1975 | 5 | |
| O'Malley, Marie T | 1888 | 1950 | 6 | |
| O'Neil, Hannan | 5/16/1815 | 8/29/1888 | 4 | |
| O'Neil, Nancy | 12/17/1929 | 8 | ||
| O'Neil, Thomas J. | 2/13/1929 | 11/12/1990 | Deacon | 8 |
| Orlando, Carmen | 1919 | 1992 | 6 | |
| O'Rourke, Catherine L. | 1880 | 1965 | 3 | |
| O'Rourke, James | 1879 | 1944 | 1 | |
| O'Rourke, John | 3/20/1864 | 12/23/1919 | 1 | |
| O'Rourke, John M. | 1874 | 1928 | 1 | |
| O'Rourke, Margaret Long | 1890 | 1929 | 2 | |
| O'Rourke, Mary A. | 9/15/1866 | 1/5/1934 | 1 | |
| O'Rourke, Mary J. | 1913 | 1983 | 1 | |
| O'Rourke, Michael J. | 7/4/1948 | 5/28/1956 | 6 | |
| O'Rourke, Nellie | 5/21/1887 | 10/28/1894 | 1 | |
| O'Rourke, Timothy | 1842 | 1925 | 1 | |
| O'Rourke, Vivian B. | 4/23/1892 | 1/21/1972 | 1 | |
| O'Rourke, William P. | 1/5/1890 | 1/16/1959 | 1 | |
| O'Rourke, Winifred Carney | 1849 | 1930 | 1 | |
| Ortiz, Candelario | 2/3/1919 | 6/27/1998 | 2 | |
| Ortiz, Elisa | 3/11/1907 | 3/3/1963 | 5 | |
| Ortiz, Florentino | 4/25/1901 | 3/11/1984 | 5 | |
| Ortiz, John G. | 6/12/1933 | Married 6/21/1957, Husband of Lena T. | 7 | |
| Ortiz, Jose | 1944 | 1946 | 2 | |
| Ortiz, Juanita | 1946 | 1952 | 2 | |
| Ortiz, Lena T. | 9/23/1938 | 1/27/1995 | Married 6/21/1957, Wife of John G. | 7 |
| Ortiz, Lucia | 11/7/1927 | 1/4/1983 | 2 | |
| Ortiz, Lucy B. | 3/11/1938 | 4/29/1989 | Mother of Cary & Heather Wife of Don | 8 |
| Ortiz, MAria T. | 4/26/1901 | 1/26/1983 | 5 | |
| Ortiz, Milton V. | 5/10/1898 | 10/2/1957 | 5 | |
| Ortiz, Monica | 1961 | 1992 | 2 | |
| Owens, Agnes | 1882 | 1924 | 2 | |
| Owens, Bridget | 8/9/1896 | Aged 45 years | 1 | |
| Owens, Bridget | 8/11/1900 | Aged 56 years, First Cousin to Theresa Kelly | 1 | |
| Owens, Evelyn B. | 7/28/1913 | 5/17/1983 | 6 | |
| Owens, James L. | 12/15/1910 | 11/9/1968 | 6 | |
| Owens, Michael | 1881 | 1934 | 2 |