John Thomas Edson

J. T. Edson, born John Thomas Edson, was an English author best known for prolific Western fiction, along with escapism adventure and police-procedural novels. He also served as a former British Army dog-handler and lived near Melton Mowbray, Leicestershire, from the 1950s until ill health forced him to retire from writing in 2005.

Worksop, Nottinghamshire, England Feb 17, 1928 Wikipedia
Western adventure police procedural