I found one piece on Violet, but could probably find a little more if I knew her married name.
If your mother has died, do you have her death certificate?
What I did find on Violet is as follows:She appears on the 1930 census as a step-daughter in the following family group:
Wolf, Seminole, Oklahoma Baugherman, John L. Wife: Ethel L., 38. Born in MO, her dad born in AR, her mom born in MO S-dau: Violet L., 18. Born in MO, her dad born in MO, her mom (Ethel) born in MO. No other family members listed.