While on location in Lone Pine, California, director Ewing Scott was injured in a car accident and assistant director George Sherman took over. A Republic crew shooting in the area saw Sherman at work, was impressed with his craftsmanship and offered him a job directing the "Three Mesquiteers" series.
The shiny aluminum (alclad) tandem open cockpit monoplane flown by Lester Dorr is a 1936 Ryan ST, registration NC14956. This plane crashed in 1937, killing the lone student pilot aboard. The parts were kept in storage until it underwent restoration from 1983 to 1987 and converted to a model ST-A. As of 2023 it is still registered as airworthy. Introduced in 1934, 1,568 of all variants were made. Most were used as training aircraft for the U.S. Army and Navy.
The same year she made this, Cecilia Parker first played the character movie-goers would best remember her for. In 1937, Parker made her initial appearance as Marion Hardy in You're Only Young Once (1937). That film would eventually become the basis for M-G-M's most popular franchise of the 1940s, the Hardy Family movies, most of which started Mickey Rooney as Andy Hardy, Parker as sister Marion, and Lewis Stone as the family's stone faced patriarch, Judge Hardy.
Charles Middleton, whose character comes up with the scheme to create a "cattle protection racket," is today best remembered for playing Ming the Merciless, cold-hearted nemesis of the hero in three Universal serials featuring Buster Crabbe as Flash Gordon.
This film's earliest documented telecast took place in Salt Lake City Sunday 4 September 1949 on KDYL (Channel 4).