Bethuel was also a longtime resident of Greene County, New York. The Genealogical Record of the Barnum Family gives his wife's name as Sally Wilcox.
In the 1850 US Census for Prattsville, Greene County, New York the family of Bethuel B. Barnum was enumerated as follows:
Dwelling #723; Family #732
Bethuel Barnum, 58, M, Farmer, b. New York
Jabez Barnum, 27, M, Farmer, b. New York
Rachael Barnum, 25, F, b. New York
John Barnum, 20, M, Farmer, b. New York, Attended school within the year
Louisa Rapela, 14, b. New York, Attended school within the year
Esther Rapela, 10, F, b. New York, Attended school within the year
Note: Bethuel's son Jabez married Rachel Rappleyea; Rachael, Louisa and Esther Rapela, enumerated above, are almost certainly the wife and daughters of Jabez.
From New York in the Revolution as Colony and State: Heading: Albany County Militia (Land Bounty Rights) -- Fourth Regiment; Rank: Enlisted Men; Name: Bethuel Barnum.
War of 1812 Service Records about Bethuel Barnum. Name: Bethuel Barnum; Company: 2 Reg't (Delameter's), New York Militia; Rank - Induction: Private; Rank - Discharge: Private; Roll Box: 11; Roll Exct: 602.