In the 1930 US Census for District 26, Ithaca, Tompkins County, New York Maude and Helen Barnum were enumerated as follows:
Dwelling #363; Family #311
Barnum, Maude; Head; Rents non-farm home for $50 per month; F; W; 43; Widowed; Can read and write; b. Iowa; Both parents b. Iowa; Saleslady; Ladies' Jewelry; Wage earner; At work last regular workday
Barnum, Helen; Daughter; F; W; 11; Attended school during the census year; Can read and write; b. New Jersey; Father b. New York; Mother b. Iowa; No occupation
Elliot, Dorothy; Roomer; F; W; 22; Single; Can read and write; b. New York; Both parents b. New York; Stenographer; Conservatory music; Wage earner; At work last regular workday