Onslow C. Mann
- Born: 8 Jun 1829, Delaware NY
- Died: 7 Mar 1896, Brooklyn NY
General notes:
Jeweler
Events in his life were:
- He worked circa 1855-1888 as a jeweler in Delhi NY
- He appeared on the census in 1860 in Delhi NY. Listed as a jeweler.
- He appeared on the census in 1870 in Delhi NY. Listed as a jeweler.
- He appeared on the census in 1880 in Delhi NY. Listed as a jeweler.
- He worked after 1888 as a jeweler in Brooklyn NY
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