You didn't include any event dates, or approximate dates, so hard to tell how old Louise might have been.And, there are two Snyders in TX, Hale Co, and Scurry Co.I looked at the other message you posted on Stephenson forum, still couldn't tell.So, without dates of any kind, really not sure if this is a match.
Combinded info from TX Dth Idx Online and SSDI:
Louise M. Whisenant, b 20 Apr 1909; d 12 Jan 1993 Travis Co, TX; last residence Austin, Travis Co, TX; SS card issued in TX.
If this isn't the correct Louise, try posting on the county site, where Snyder is located. Both the GenForum county and the GenWeb county, too.With a surname like Whisenant, someone might spot and recognize the family, and be able to help you.
If it is the correct Louise, look for an obituary, usually survivors are listed, and a good way to pick up names of married daughters.You never know what helpful info will be included in an obit.