In the 1870 US Census for Beat 11, Pike County, Alabama the family of Peter Barnum was enumerated as follows:
Dwelling #205; Family #205
Barnum, Peter; 39; M; Black; Farm laborer; b. Alabama; Cannot read or write; Male citizen of US of 21 years of age and upwards
Barnum, Lee; 40; M; Black; Farm laborer; b. Alabama; Cannot read or write; Male citizen of US of 21 years of age and upwards
Barnum, Susan; 30; F; Black; Keeping house; b. Alabama; Cannot read or write
Barnum, Susan; 30; F; Black; Keeping house; b. Alabama; Cannot read or write [sic]