He wrote over 700 Westerns for the Australian paperback publishers Cleveland and Horwitz using the pseudonym "Marshall McCoy", "Marshall Grover" "Ward Brennan" and "Glenn Murrell".
As a prolific author of Western novels, he created over 700 titles for Australian publishers Cleveland and Horwitz, using various pen names such as Marshall McCoy, Marshall Grover, Ward Brennan, and Glenn Murrell.