I've had a breakthrough, and found Frank Langford's second wife, Jennie Langford. Found in a court document over their divorce. Do not know if Jennie is her legal name. I believe they had one child, yet though they could have had none. They lived in Mansfield, Texas for some time. They were married in 1950.
Also, I am looking for any sons, daughters, relatives, of Frank Langford's first wife. She passed away, and then married his second wife, Jennie (above).