Laurentina Garza also known as "Laura" Garza was a twin with Lauro Garza.  She, according to Dorace Goodman, married Reymundo Rodriguez but because a widow very young, and raised Thelma by herself. She had a wonderful sense of business and was respectd for her opinons.  She was born on January 27, 1907 and died in 1986.
Los Garza del Rancho La Violeta
The history of the ranch and its founders:
Don Martiniano Garza Flores and
La Doña Paula Villareal Benavides de Garza