In the 1850 US Census for Angelica, Allegany County, New York the family of Guy C. Barnum was enumerated as follows:
Dwelling #179; Family #185
Guy C. Barnum, 59, M, Farmer, Real property $400, b. Vermont
Betsey Barnum, 45, F, b. New York
Elizabeth N. Barnum, 24, F, b. New York
Coris Ann Barnum, 22, F, b. New York
Louisa M. Barnum, 20, F, b. New York, Attended school within the year
Maria A. Barnum, 15, F, b. New York, Attended school within the year
Sarah C. Barnum, 12, F, b. New York, Attended school within the year
Arabella Barnum, 10, F, b. New York, Attended school within the year
Guy C. Barnum, 9, M, b. New York, Attended school within the year
Sophia I. Barnum, 3, F, b. New York
Leonard Graves, 9, M, b. New York, Attended school within the year
Leona Graves, 9, F, b. New York, Attended school within the year
Charles S. Graves, 7, M, b. New York, Attended school within the year