Overholser (born September 4, 1906 in Pomeroy, Washington; †died August 27, 1996 in Boulder, Colorado), was an American Western writer.
Overholser won the 1953 First Spur Award for Best Western Novel for Lawman using the pseudonym Lee Leighton.
Lawman was made into the motion picture Star in the Dust, starring John Agar and Richard Boone (and Clint Eastwood in his first - uncredited - Western role), in 1956.
In 1955 he won the 1954 (second) Spur Award for The Violent Land.
He won the Spur Award for a third time in 1969 for his the juvenile novel about the Meeker Massacre, with Lewis Patten.
Three additional pseudonyms were John S.
Daniels, Dan J.
Stevens and Joseph Wayne; combinations of his three sons' names.