He was the literary agent for Frank Herbert, Robert A. Heinlein, John Barth, William F. Nolan, and Rosemary Taylor. His public relations firm named Houston Branch Associates was sold to Eleanor Wood's Spectrum Literary Agency in 1978.
In 1951, author Robert A. Heinlein dedicated his science fiction book The Puppet Masters "to Lurton Blassingame". He also used Blassingame as a "care-of" address for form letter responses to fans.
In 1980, literary agent Kirby McCauley dedicated his horror anthology Dark Forces to Blassingame "with admiration and affection".
Heinlein's posthumous 1989 book Grumbles from the Grave consists of his letters. There are more letters to Blassingame than any other correspondent. (And some of Blassingames's letters to Heinlein are included.)
- McDowell, Edwin (April 13, 1988). "Lurton Blassingame, 84, Agent". New York Times. Retrieved December 6, 2013.
- cf. Grumbles from the Grave First Edition pp140 et al.