Hi Cyndy, You didn't include any dates, or approximate dates, in your query. I know, you may not have full and exact dates for all the people in your query, but even the birth year of one of the children would help to put them in a time frame. I tried looking at some indexes, but even Ora Wallace is more common then you'd think.
There are 2 Granville Wallaces on TX Dth Idx, both died in 1982. One of them shows up on SSDI, born 1899.
Have you checked the Henderson Co, TX GenWeb site? Some GenWeb counties are putting their cemeteries online. You might find Ora buried there. Also, be sure to check out the TXGenWeb archived section, for that county, too.
If you haven't used GenWeb sites, let me know. I can give you some handy hints, but you may already be familiar with them.