1910 Census, O'Neal twp, San Joaquin, California
27 & 28 May 1910, Series: T624  Roll: 102   Page: 135

Clay, Jacob s., head, M, W, 32, M1, mar. 4 yrs, b Pennsylvania, fa b South Dakota,
mo b United States, speaks English, Electrician, own shop, Employee, can read & write

Clay, Estelle, wife, F, W, 30, M1, mar 4 yrs, 2 children, 2 living, b Soth Dakota,
fa b Germany, mo b Wisconsin, speaks English, can read & write

Clay, Robert, son, M, W, 3, single, b California, fa b Pennsylvania, mo b South Dakota,
speaks English

Clay, Raymond, son, M, W, 2, single, b California, fa b Pennsylvania, mo b South Dakota,
speaks English