About

1930 census:
2326 Observatory Avenue (Value: $18,000): 1) Beatrice Ludlan, owner and head of household; 39 year old white divorced female; married at age 24; born in English Canada; parents born in English Canada; to US in 1920, a naturalized citizen; not working. 2) Betsy S. Ludlan, daughter; 7 year old white female; in
school; born in New York; father born in Illinois.

1940 Census:
2326 Observatory Avenue (Value $9,500): 1) Harry L. Caldwell, head of household; white married male 56 years of age; born in Illinois; electrical engineer, department of Water and Power; earns over $5,000. 2) Edna R. Caldwell, wife; white married female 52 years of age; born in Canada; not working.