| Birth | Abt 1795 | See death certificate of son James. For Henry's 1820 census, wife was age 16-25, already had 2 young sons, so perhaps born 1795-1800. | | | |
| Extra information | 1795 | Familysearch has records for Dutch Church in Greene County. Many "Rivenburgs". Perhaps Polly had roots in Greene County? (Unfortunately it appears church was not active until after 1800.) | | | |
| Death | Abt 1825 | Death certificate for James H Knickerbocker shows his mother's name as Polly Rittenberg. She disappeared (died)? Henry remarried. His second wife was Tabatha Crosby, married 1827. | | | |