In the 1930 US Census for District 19, Miami, Dade County, Florida, the family of Dorothy Anne Barnum was enumerated as follows:
Dwelling #499; Family #524 (552 NW 54th Street)
Barnum, Dorothy Anne; Head; Owns non-farm home valued at $3,500; Owns radio set; Female; White; 60; Widow; Able to read and write; b. New York; Father b. New York; Mother b. Pennsylvania; Able to speak English; No occupation
Barnum, Lynton L.; Son; Male; White; 31; Single; Able to read and write; b. New York; Father b. Pennsylvania; Mother b. New York; Able to speak English; Civil engineer; Engineering Company; Wage earner; At work last regular workday; Non-veteran
Barnum, J. Merton; Son; Male; White; 19; Single; Attended school within the census year; Able to read and write; b. New York; Father b. Pennsylvania; Mother b. New York; Able to speak English; No occupation
In the 1935 Florida State Census Precinct 13, Dade County, the family of Dorothy Anne Barnum was enumerated as follows:
Barnum, Dorothy M.; 552 NW 54th Street; Inside city limits; 65; White; Widow; b. New York; High school education; Property owner; Housewife
Barnum, John M.; 552 NW 54th Street; Inside city limits; 24; White; Son; b. New York; University education; Property owner; Student