Career
Aside from his United States Marine Corps Reserve career he also worked in the film industry for many years, initially as a documentary producer for the United States Army, then as a production executive at Warner Brothers, where he eventually became the final producer of the Looney Tunes series. However, his research found that no such organisation existed, and he resolved to start one himself. He led a toy collection in the Los Angeles area with several family and friends that eventually amassed some 5,000 toys.
This pilot program proved so successful that the Marine Corps adopted it as an official campaign the following year, and Hendricks helped make it even more of a success by using his contacts through Warner Brothers to persuade many celebrities to support the charity.
In 1967 he was asked by Warner Brothers to take over as head of their newly reformed animation studio, as well as becoming overall head of the Looney Tunes franchise. The new animation studio lasted only two years and produced few cartoons of note before shutting down in 1969.
However, Hendricks remained in a supervisory role, overseeing production on The Bugs Bunny Show and other television shows featuring Looney Tunes cartoons. He remained in this role until 1977, when he finally retired from the film industry at the age of 73.