Hi Shannon, I found a John W. Fogle [how appears on Census] and family living in Stockton, San Joaquin, CA in 1930. John W. Fogle, b. IL, 48, marr @ 22, painter refined oil co. Emma, wife, b. MO, 46, marr @ 20. William, b. MO, 24, single, painter building.
Your best bet is to get a copy of her obituary. Go to freepages.genealogy.rootsweb.ancestry.com/~obitl/ and scroll down to San Joaquin Co. where you'll find a volunteer.
If that doesn't work out, contact the Stockton-San Joaquin County Public Library, stockton.lib.ca.us/ .
I didn't find Elizabeth Emma in the death index but it might not have been entered. Successful Searching!