| Date | Kind | Origin | Details | |
|---|---|---|---|---|
| 1876 | Birthi | Event | ||
| Death | Event | He is dead but no details are known | ||
i. "Philadelphia Passenger Lists, 1800-1945," database online; Page accessed 18 Mar 2013), entry for John Blacknell; Roll: T840_53; Line: 6.; [Source Record]; Certainty Primary Evidence