Since you only gave month and year of death, I'm assuming you got that info from SSDI.Here is combined info from SSDI and TX Dth Idx:
Perkins, Otis Franklin, b 3 Jun 1916; d 13 Nov 1982 Travis Co, TX; last residence Austin, Travis Co, TX; SS card issued in TX.
Married name for his daughter, Virginia, seemed unusual, so I tried http://www.switchboard.comhttp://www.switchboard.com typed in surname of Wriedt and state of TX.There are four listings, if you know given name of her husband you might have a listing for him.If not, you might try writing each of those four, and one of them might be related to Virginia's husband and can tell you how to contact them.Or, where you know given names of any of the other spouses, you can play around with the Switchboard site.
I tried Ziebarth, too, there are 12 listings in TX for that surname.
Most of the children have fairly common given names, and Perkins is fairly common, but I did try Conrad Perkins.None in TX, but there is one in Milwaukee, WI.