In the 1900 US Census for District 2, Greensboro, Caroline County, Maryland the family of Thomas C. Barnum was enumerated as follows:
Dwelling #112; Family #113
Barnum, Thomas; Head; W; M; b. Mch 1849; 51; Married 4 years; b. North Carolina; Father b. Connecticut; Mother b. North Carolina; Clergyman; Can read, write and speak English; Rents non-farm home
Barnum, Amanda; Wife; W; F; b. Jan 1866; 34; Married 4 years; Mother of 2 children; 2 children living; b. Pennsylvania; Both parents b. Pennsylvania; Can read, write and speak English
Barnum, Pandora; Daughter; W; F; b. Feb 1897; 3; Single; b. Pennsylvania; Father b. North Carolina; Mother b. Pennsylvania
Barnum, Thomas Jr.; Son; W; F [sic]; b. Mch 1899; 1; Single; b. Pennsylvania; Father b. North Carolina; Mother b. Pennsylvania
In the 1910 US Census for District 515, Philadelphia Ward 24, Philadelphia, Pennsylvania the family of Thomas C. Barnum was enumerated as follows:
Dwelling #27; Family #28 (4073 Hartford Avenue)
Barnum, Thos.; Head; M; W; 60; Married 13 years; b. North Carolina; Both parents b. North Carolina; Native tongue English; Photographer; Works for own account; Can read and write; Rents non-farm home
Barnum, Amanda; Wife; F; W; 44; Married 13 years; Mother of 6 children; 4 children living; b. Pennsylvania; Both parents b. Pennsylvania; Native tongue English; Pastry store; Manufacturer; Can read and write
Barnum, Pandora; Daughter; F; W; 13; Single; b. Pennsylvania; Father b. North Carolina; Mother b. Pennsylvania; Native tongue English; No occupation; Can read and write; Attended school within the census year
Barnum, Thomas; Son; M; W; 11; Single; b. Maryland; Father b. North Carolina; Mother b. Pennsylvania; Native tongue English; No occupation; Can read and write; Attended school within the census year
Barnum, Rees [sic]; Son; M; W; 6; Single; b. Maryland; Father b. North Carolina; Mother b. Pennsylvania; Native tongue English; No occupation; Attended school within the census year
Barnum, Miriam; Daughter; F; W; 2; Single; b. Pennsylvania; Father b. North Carolina; Mother b. Pennsylvania; Native tongue English; No occupation
Mackie, Richard; Boarder; M; W; 25; Single; b. Pennsylvania; Both parents b. Pennsylvania; Native tongue English; Motorman; Street railway; Wage earner; Can read and write
Mackie, Emma; Boarder; F; W; 26; Single; b. Pennsylvania; Both parents b. Pennsylvania; Native tongue English; No occupation; Can read and write
Morse, Jas. E.; Boarder; M; W; 44; Married 24 years; b. Kentucky; Both parents b. Kentucky; Native tongue English; Motorman; Street railway; Wage earner; Can read and write
Cunningham, Seaborn; Boarder; M; W; 36; Single; b. At sea; Father b. Ireland; Mother b. Wales; Immigrated to US in 1874; Alien; Native tongue English; Motorman; Street railway; Wage earner; Can read and write