Thanks for the info. I did find below what appears to be Walter Ott in the 1940 census.
age 35; est birth abt 1905, Missouri; Married
Home: Chillicothe, Livingston, Missouri; hse 447 (renter)
Res. in 1935: Same Place, California
Occup: Salesman; Wholesale Petroleum Co.; Wage or salary worker in private work (in home work)
Highest Grade Completed: College, 4th year
Household: Walter Ott age 35; Mary Ott age 32