Don't know if this is your Henrietta but this is what I found in 1930 Harry or Henry Campbell- age 48- born NY- married at 38- owns home-police officer- NYC Henrietta - wife- age 40- born England- married at age 30-came to the US in 1917?- was naturalized- governess- private family address- 435 Penn? St. Phila. Didn't have any luck in 1920 census. Maybe someone else will find her there. Peggy D.