Morris, Clair W., head, 50, Iowa, New York, Iowa, real estate salesman ----, Florence, wife, 50, Canada/French, England, Canada/French ----, Ethel L, daughter, 12, Massachusets, United States, Massachusetts
There is an "a." or an "s." in front of "daughter" in Ethel's relationship. The fact all they know of her father was that he was born in the US hints that her mother didn't know him very well, or if she did she didn't say much. I can't tell ; "s." would be step-daughter, "a." could be "adopted".
Clair and Florence have been married 31 years. Florence came to the US in 1894 and has been a citizen for 42 years.
I set the surname to Morris, county to Sonoma and tried all birth years from 1875 to 1885. These two looked promising:
MORRIS, FLORENCE B. 03/25/1879 in CANADA MMN GALLISON D. 01/18/1944
MORRIS, WALTERCLIFTON 04/14/1878 MMN HARROD B. IOWA D. 05/04/1958
Florence looks real good, Walter Clifton a 50% chance. ("Clair W" is sort of like "Walter C", the surname, birth place and birth year match the 1930.) Two more obits to ask for or look up yourself.
I looked for white men born in Iowa within 5 years of 1880 on the 1920, using Clifton, Clair and Clarence. Couldn't find him.
I don't know anything about obtaining school records. If this is the right family, since Florence was living in Santa Rosa in 1930 and died there 14 years later, chances are good Ethel went to school there.
One clue - did Ethel go to college? It isn't unusual for someone to travel a couple of hundred miles to go to college. It would be rare for someone to get shipped off to finishing school on a real estate salesman's salary.