About

1930 census:
4415 Gainsborough Avenue (Value: $35,000): 1) James T. Costello, owner and head of household; 36 year old white married male; married at age 27; born in Ohio; father born in Ohio, mother in the US; a broker in real estate. 2) Irene E. Costello, wife; 30 year old white married female; married at age 21; born in Washington D.C.; parents born in Washington D.C.; not working. 3) Patricia Costello, daughter; 4 year old white female; born in California. 4) Jacoetine Costello, daughter; 2 year old white female; born in California. 5) Louisa Tems, servant; 55 year old Negro female widow; born in Louisiana; parents born in the US; a cook for a private family. 6) Walter W. Costello, brother; 25 year old single white male; born in Ohio; father born in Ohio, mother in the US; a broker in real estate.

1940 Census:
4415 Gainsborough Avenue (Value $12,500): 10 Herman Burke, head of household; white married male 36 years of age; born in California; broker, general investments; earns $4,200. 2) Lucille Burke, wife; white married female 36 years of age; born in Massachusetts; not working. 3) Evelyn Burke, daughter; white female 10 years of age; born in California; in school. 4) Robert Burke, son; white male 6 years of age; born in California; in school.