At risk of showing my age, I can recall when she sang at the Minus One Coffehouse on Sixth Street in Tucson, AZ. She was the "original Hippy" (Ie. pre 1964) at Tucson's Catalina High School. Her father owned a great harware/farm supply store in downtown Tucson and was an earlyday Mexican/American merchant, selling a lot into Sonora, Mexico. The last Album she had that was good was Canciones de mi Padre -- old Rancheria from Sonora. My take is "Music good, Politics predictable based on career."
She also sang at the First Step Coffehouse on Campbell ave. in 1963. Which (IIRC) was the actor Allan Fudge's first venture in life; he was a folkie. She sang barefoot, which was, as you say, sorta "original hippy" stuff at the time...considered very risque...
My husband is from Tucson and just said he first saw her play at his H.S., Sal Pointe.
The good news is one of her cousins is active in local politics, and he is a Republican.