The 1930 School Census of Sonoma County, California
Sonoma County Genealogical Society
Contains data on 9,500 minors in Sonoma County including birth date, birthplace, race, school, grade, residence, names of parents, birthplace and citizenship of parents, and more.
Available through Heritage Books, Inc.
65 East Main Street, Westminster, MD 21157-5026, 1-800-876-6103