In the 1850 US Census for Addison, DuPage County, Illinois the family of Deloss W. Barnum was enumerated as follows:
Dwelling #1182; Family #1201
Deloss W. Barnhum [sic], 21, M, Farmer, Real property $1,000; b. Vermont; Married within the year
Lurania P. Barnhum, 26, F, b, Massachusetts, Married within the year
Norval D. Barnhum, 31, M, Farmer, b. Massachusetts, Deaf and dumb
[N.B., Norval was an older brother of Deloss]
Deloss Barnum was a photographer in Cortland, New York in 1870.