| LNAME | FNAME | MNAME | MAIDEN | BORN | DIED | CEMETERY |
| ========== | ========== | ========== | ========== | ========== | ========== | ========== |
| O'BRIEN | RUSSELL | 23-04-1816 | 08-08-1852 | |||
| O'DONNELL | PATRICK | ??-??-???? | ||||
| O'DONNELL | MRS.URINDA | 00-00-1858 | 00-00-1931 | KANE | ||
| O'DONNELL | DOROTHEA | A. | GODAR05-10-1880 | 04-05-1977 | SCENIC HILL | |
| O'DONNELL | MARY | 00-00-1877 | 00-10-1927 | GREENWOOD, ALTON | ||
| O'DONNELL | EMMA | MAE | MORGAN | 00-00-1923 | 17-03-1989 | SCENIC HILLS |
| O'DONNELL | CHARLES | EDWARD | 00-00-1919 | 27-04-1990 | GUNTERMAN | |
| O'DONNELL | THOMAS | 00-00-1838 | 25-11-1880 | NORTH ALTON CATHOLIC | ||
| O'HALLORAN | MRS. | 00-10-1892 | ||||
| O'HARE | MARY | 00-00-1832 | 00-07-1918 | |||
| O'HARE | JOHN | 00-05-1926 | GRANITE CITY | |||
| O'KEEFE | CATHERINE | 21-01-1916 | ST. FRANCIS | |||
| O'KEEFE | THOMAS | 28-08-1871 | 00-00-1963 | SCENIC HILL | ||
| O'KEEFE | BARTHOLEMEW | 00-00-1830 | 00-10-1919 | I.O.O.F | ||
| O'LAUGHLIN | JAMES | 00-00-1910 | 00-08-1972 | MIAMI, FLA. | ||
| O'LOUGHLIN | MARY | 04-02-1906 | ||||
| O'LOUGHLIN | MARY | 00-00-1804 | 00-11-1896 | |||
| O'LOUGHLIN | JOHN | JOSEPH | 08-07-1880 | 11-04-1955 | ST. FRANCIS | |
| O'LOUGHLIN | BRIDGET | WELSH | 00-09-1881 | 07-04-1977 | ST. FRANCIS XAVIER | |
| O'LOUGHLIN | MRS.JERRY | 00-00-1837 | 00-07-1907 | |||
| O'MALEY | THOMAS | 00-00-1831 | 14-12-1906 | CATHOLIC | ||
| O'NEAL | HENRY | C. | 28-06-1883 | 08-06-1977 | VALHALLA | |
| O'NEIL | JAMES | C. | 09-10-1928 | 02-12-1980 | ||
| OATES | JAMES | P. | 10-05-1927 | 19-03-1979 | NOBLE/OTTERVILLE | |
| OBERMYER | FRANK | 00-00-1840 | 24-02-1909 | |||
| ODELL | RICHARD | B. | 00-00-1913 | 15-08-1986 | ||
| OEHMAN | PETER | 00-00-1810 | 00-01-1893 | |||
| OEHMSTEDT | CHARLES | LUDVIG | 00-00-1824 | 02-01-1898 | ||
| OERTEL | IDA | L. | 25-11-1882 | 00-11-1969 | ||
| OERTEL | MAE | MARGARET | SCOTT | 00-00-1917 | 05-05-1986 | |
| OERTEL | OTTO | LOUIS | 00-00-1888 | 23-01-1984 | BRIGHTON | |
| OGDEN | WILLIAM | 13-02-1869 | 13-05-1956 | UPPER ALTON | ||
| OGDEN | NANCY | APPLIN | 01-04-1832 | 22-10-1921 | ||
| OGDEN | LETHA | A. | PERDUN | 02-03-1906 | 27-02-1977 | OAK GROVE |
| OGDEN | WILLIAM | E. | 08-04-1901 | 31-12-1982 | OAK GROVE | |
| OHLEY | MARY | E. | SCHAAF | 25-12-1903 | 04-12-1979 | ST. JOSEPH |
| OLEHMSTEDT | ROBERT | 00-00-1858 | 00-11-1893 | |||
| OLNEY | C. | S. | 13-04-1832 | 02-02-1902 | ||
| ONETTO | JOHN | H, | 00-00-1823 | 00-05-1880 | ELSAH | |
| ONTIS | MILDRED | L. | ANDREWS | 15-06-1913 | 20-08-1989 | ROSEDALE |
| ONTIS | CHARLES | 00-00-1882 | 00-03-1927 | HARTFORD | ||
| ONTIS | LESTER | R. | 24-07-1910 | 29-11-1977 | ROSEDALE | |
| ONTIS | JOHN | 00-00-1858 | 00-10-1918 | HARTFORD | ||
| ONTIS | MRS.HARRY | 00-00-1889 | 00-00-1913 |