The SSDI has the following: ALVA T KEITHborn 10 Feb 1924died 24 Jun 1999 (V) 43725 (Cambridge, Guernsey, OH)286-14-3373 Ohio
There are a couple of possibilities for Harold, but no residence is given. You can e-mail the Guernsey County District Public Library for a copy of Alva's obit if he has one. Their web address is: http://www.gcdpl.lib.oh.us/services/history.htmhttp://www.gcdpl.lib.oh.us/services/history.htm that will take you straight to their genealogy page where you can e-mail them. If Harold stayed in the same area and has died the library can look for him in their cemetery books and maybe find an obit or him too. Hopefully their obits will tell you where to find Shirley. Good luck!