Mark Preston Olney 
M, #4167, b. Sep 4, 1875
| Father* | Cogswell Sedgwick Olney b. Apr 13, 1832, d. Feb 2, 1902 |
| Mother* | Mary Virginia F. Belt b. Sep 9, 1844, d. Mar 22, 1924 |
Chronological Events | ||
| Birth* | Sep 4, 1875 | Mark Preston Olney was born on Sep 4, 1875 at Illinois, United States . |
| He was the son of Cogswell Sedgwick Olney and Mary Virginia F. Belt. | ||
