Richard Stevens, 31, married at age 26, born in AL, father born in AL, mother born in GA. Occupation - sound operator at movie studios. Jane, 25, married at age 19, born in CT, both parents born in CT Betty Jane, 4 8/12, born in CA Suzanne, 2 6/12, born in CA
Jane's maiden name was Ahern. Mother with them in 1940. Betty Jane's birth info lists mother's maiden name as Ahern.
If you can locate Princeton and Jane's marriage certificate, it may list their parents. Looks like they got married around 1924-1926.Jane and her parents were living in Berkely, Alameda, CA in 1920, so Jane and Princeton may have been married in California.