Movies (As Crew)
Sorted by Release DateThe Laramie Trail
Jackson Gregory would have been no older than 61 in The Laramie Trail as 'Novel'.Movie Released: Mon, Apr 03 1944
Sudden Bill Dorn
Jackson Gregory was 55 in Sudden Bill Dorn as 'Story'.Movie Released: Wed, Dec 01 1937
The Everlasting Whisper
Jackson Gregory was 43 in The Everlasting Whisper as 'Story'.Movie Released: Tue, Nov 10 1925
The Timber Wolf
Jackson Gregory was 43 in The Timber Wolf as 'Story'.Movie Released: Sun, Sep 20 1925
Hearts and Spurs
Jackson Gregory was 43 in Hearts and Spurs as 'Story'.Movie Released: Sun, Jun 07 1925
Bells of San Juan
Jackson Gregory was 40 in Bells of San Juan as 'Novel'.Movie Released: Sun, Oct 15 1922
Alias Ladyfingers
Jackson Gregory was 39 in Alias Ladyfingers as 'Story'.Movie Released: Sun, Oct 30 1921
The Man from Painted Post
Jackson Gregory was 35 in The Man from Painted Post as 'Story'.Movie Released: Sat, Sep 29 1917
The Secret of Black Mountain
Jackson Gregory was 35 in The Secret of Black Mountain as 'Story'.Movie Released: Fri, Sep 21 1917
TV Shows (As Crew)
Sorted by Release DateAges in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages