All books shown are by Barbara Linington. We acquired them from my mother-in-law who was the executrix of the estate of the American novelist. She is also known as Dell Shannon, Leslie Egan, Elizabeth Linington, & Anne Blaisdell) The short bio that I found on the internet does not state several things, 1) her publisher would call every three months are want a new novel. She would write it in two weeks. 2) the John Birch Society kicked her out for being too conservative, 3) she had a back up generator, for her home that was donated to an NPR radio station for their use, (it was large enough to run the whole radio station), and many more stories can be told about her and her habits.

Wikipedia
Barbara "Elizabeth" Linington (March 11, 1921 - April 05, 1988) was a prolific American novelist. She was awarded runner-up scrolls for best mystery novel from the Mystery Writers of America for her 1961 tome, Nightmare, and her 1962 entry in her Luis Mendoza series, Knave of Hearts. Regarded as the "Queen of the Procedurals," she was one of the first women to write police procedurals — a male-dominated genre of police-story writing.
Shannon was born in Aurora, Kane County, Illinois; and died on April 05, 1988 in Arroyo Grande, San Luis Obispo County, California.

Besides crime, Linington also took interest in archaeology, the occult, gemstones, antique weapons and languages.