If you're only looking for descendants, from info supplied by Alice, this is a "possible" match for one of the sons.
Combined info from TX Dth Idx and SSDI:
Bryant, Harvey E., b 21 Mar 1914; d 2 Sep 1992 Williamson Co, TX; last residence Cedar Park, Williamson Co, TX; SS card issued in TX.
His obituary might give survivors, someone you could contact.
Using online directory -- http://www.switchboard.comhttp://www.switchboard.com -- there are eight on there listed in Cedar Park, but you can whittle it down to six to contact, as there appears to be two couples, husband and wife?, with same address.Maybe one of them will have some information for you.