SADLER, Mary, d. Abiel Jr. and Elizabeth, [born] Jan. 7, 1777.
↑ The 1790 census shows two son and one daughter plus a wife in the household. The three births recorded in Orange are sufficient to account for this (and Elizabeth is known to have lived past 1790 accounting for the daughter) suggesting that Mary had died before then. See the note on the parents page discussing the possibility of missing children.