In the 1850 US Census for Walworth, Wayne County, New York the family of Eli Barnum was enumerated as follows:
Dwelling #16; Family #16
Eli Barnum, 60, M, Farmer, Real property $11,000, b. New York
Charles Barnum, 27, M, Farmer, b. New York
Mary E. Barnum, 25, F, b. New York
John T. Barnum, 23, M, Farmer, b. New York
Henry O. Barnum, 21, M, Farmer, b. New York
Eliphalet Barnum, 36, M, Farmer, b. New York
Mary Potter, 35, F, b. Ireland
[Note: Eliphalet was Eli's half brother by their father's first wife]
'The Genealogical Record of the Barnum Family' says that he was born
in Rochester, New York.