Samuel Robert Cummings
Died: June 1979 per social Security Death Index
Died: 17 June 1979, Harris Co. per Texas Death Index
Unfortunately the Harris County Genealogical Society has closed their doors.
The following two societies MIGHT be able to help you.
Baytown Genealogy Library, www.baytowngenealogylibrary.org/
Chaparral Genealogical Society, Inc., www.chaparralgensoc.org/index.html