1920 US Census, 71 Vernon St., Providence, Providence Ward 9, District 280, p 20/47
Danielson, John P., head, age 70, entered US in 1876, Naturalized 1884, born in Sweden, machinist
Alice, wife, age 63, entered US in 1875, naturalized in 1884, born in Sweden
Alga M., dau, age 35, born in Colorado, cashier in restaurant
Charles A., son, age 33, born in Connecticut, foreman in jewelry shop
William A., son, age 28, born in Rhode Island, bench hand in jewelry shop
Archie L., son, age 26, born in Rhode Island, collector for electric company
Gertrude A., dau, age 21, born in Rhode Island, cashier in restaurant

Older son on same page:
Danielson, John G., head, age 39, born in Colorado, toolmaker, jewelry shop
Madeline, wife, age 28, born in Ireland, entered US in 1898, citizen in 1911
John G., son, age 2 7/12, born in Rhode Island

Full family appears in 1910 US Census for Providence, 41 Bradford St.