In the 1850 US Census for Brookfield, Fairfield County, Connecticut the family of Garry Barnum was enumerated as follows:
Dwelling #4; Family #5
Garry Barnum, 50, M, Farmer, b. Connecticut
Emma Barnum, 49, F, b. Connecticut
William H. Barnum 6, M, b. Connecticut, Attended school within the year
George E. Barnum 4, M, b. Connecticut, Attended school within the year
David R. Barnum 1, M, b. Connecticut
In the 1880 US Census for New Milford, Litchfield County, Connecticut Garry Barnum was enumerated with the family of his son George E. Barnum.