Notes for: Girshom Biddle
His tombstone supposedly says he died on April 22, 1862 at age 33 y, 2 m, 4 d. The "33 y" has to be a mistake in the reading of the tombstone. If if were 53, that would make sense. So if he died at age 53 y, 2 m, and 4 d, that would make his birth date about Feb 18, 1809. That would fit the 1860 Census which says he was 51 years old.