Just in case anyone else had this same question, it has been determined that David Enyart was the father of Nancy and all the children living with Humphrey and Celia in the 1850 census, with the exception of Mary B. The last was the child of Humphrey and his wife, Mary Woods. David had left his children with his brother and mother when he went to the California gold fields in 1848.
> Howard County MO probate book volume 7.
p18, 5 May 1863. Alfed McDaniel & mary A Enyart, Admrs of the estate of Humphrey Enyart, decd, prove notice of final settlement published 4 weeks before the qst day of present terem in Macon Gazette. Said settlement continued until August Term.
p33 4 Aug 1863. mary A Enyart & Alfred McDaniel Admrs of the estate of Humphrey Enyart dec'd proved notice of final settlement present final settlement, recorded. Ordered Admr to distribute balance on hand one half each to Mary A Enyart, widow, and Mary B Enyart, only heir of the deceased.