In the 1850 US Census for Atlas, Genessee County, Michigan, a year after the death of her husband, Louisa Ann (Thomas) Barnum and two of her children were enumerated living with her father, Jacob Thomas, as follows:
Dwelling #404; Family #409
Jacob Thomas, 56, M, Real porperty $1,000, b. New York
Polly Thomas, 56, F. b. New York, Person over 20 years of age who cannot read or write
Louisa Barnum, 31, F, b. New York
Mehitable Barnum, 11, F, b. Michigan, Attended school within the year
Thomas Barnum, 6, M, b. Michigan, Attended school within the year
In the 1860 US Census for Junius, Seneca County, New York the family of Louisa Barnum was enumerated as follows:
Dwelling #118; Family #114
Barnum, Louisa; 50, F, W, Keeping house; Real property $4,000; Personal property $1,100; b. New York
Barnum, Nathaniel; 24; M; W; Farmer; b. New York; Male citizen of the US of 21 years of age and upwards
Barnum, Caleb; 20; M; W; b. New York; Attended school within the year