In the 1850 US Census for Eldorado, Fond du Lac County, Wisconsin the family of Morris S. Barnum was enumerated as follows:
Dwelling #994; Family #1013
Morris S. Barnum, 42, M, Lumberman, b. New York
Laura Barnum, 34, F, b. New York
Charles F. Barnum, 15, M, Lumberman, b. New York, Attended school within the year
James Barnum, 8, M, b. New York, Attended school within the year
Marvin Barnum, 6, M, b. New York, Attended school within the year
Adelsut Barnum, 1, F, b. New York
Elizabeth Kervil, 22, F, b. England
Thomas Kervil, 16, M, Laborer, b. England
William Kervil, 13, M, b. England