Theodore Lockard Thomas (April 13, 1920[1] – September 24, 2005[2]) was an American chemical engineer and patent attorney who wrote more than 50 science fiction short stories, published between 1952 and 1981. He also collaborated on two novels with Kate Wilhelm, as well as producing stories under the pseudonyms of Leonard Lockhard and Cogswell Thomas, and was nominated for the 1967 Nebula Award for Best Short Story ("The Doctor")[3] and for a Hugo Award.