Mary Willis Walker (May 24, 1942 – November 4, 2023)[1] was an American crime fiction author.
Walker graduated from Duke University in English and took up high school teaching.
[2] She married in 1967 to Lee Walker who became president of Dell Computers, living in New York and Virginia before moving to Austin, Texas.
[5] She began writing in her mid-forties, which she characterized as "pretty late to start".
[6] Her second Texas-based mystery, Red Scream, was Walker's first to feature sleuth Molly Cates.