In the 1850 US Census for Danbury, Fairfield County, Connecticut the family of Eli S. Barnum was enumerated as follows:
Eli S. Barnum, 29, M, Merchant, Real property $2,000, b. Connecticut
Julia Barnum, 27, F, b. Connecticut
Franklin W. Barnum, 3, M, b. Connecticut
Lucius F. Barnum, 1, M, b. Connecticut
In the 1880 US Census for Bethel, Fairfield, Connecticut the family of Eli S. Barnum was enumerated as follows:
Dwelling #231; Family #194
Barnum, Eli S.; W; M; 60; Married; Dealer in dry goods and groceries; b. Connecticut; Both parents b. Connecticut
Barnum, Julia; W; M; 58; Wife; Married; Keeping house; b. Connecticut; Both parents b. Connecticut
Barnum, Louis; W; M; 31; Son; Single; Farmer; b. Connecticut; Both parents b. Connecticut
Barnum, Anna; W; F; 23; Daughter; Single; At home; b. Connecticut; Both parents b. Connecticut
Barrett, Josie; W; F; 15; Servant; Single; Servant; b. Connecticut; Both parents b. Ireland
Travis, Daniel R.; W; M; 29; Boarder; Single; Clerk in store; b. New York; Both parents b. New York
Note: Husband of Julia Barnum (same maiden name). They were second cousins once removed.