There's a death record for an Isiac WHITLOCK, age 63 on 24-Sept-1930 in Catawba, York, SC.Parents were James and Carrie WHITLOCK.
This is possibly Ike and Mae in the 1910 census for Catawba, York, SC: WHITLOCK, Isaac age 32 b. SC wife Mary L. age 32 b. SC son Alonza age 19 dau Maggie age 18 dau Emma age 15 dau Alberta age 13 dau Mattie P. age 11 son Otis age 10 son Mathew G. age 8 dau Carry age 6 dau Delta age 4 son David age 2 son Alfred age 1 dau Jennie M. age 0
Alex and Laura were 3 or 4 pages away in the census.
There's a NC death record for their son Otis WHITLOCK b. 7-Apr-1900 in SC, d. 19-Jan-1960 in High Point, Guilford Co, NC.Parents were Isaac WHITFORD and Mary WESTBROOK.
There's also a SC death record for their son Alonzo b. 23-Feb-1897 in SC, d. 27-Dec-1944 in Hopkins, Richland Co, SC.Spouse Janie MILLER, father Ike WHITLOCK, mother Sarah Jane WESTBROOK.