[2] He frequently produced short travel documentary subjects, including some entries in the "Vagabond Adventure" travelogue series for Pathé Exchange and RKO Pictures in the early 1930s.
[5] He was a founding member of the Screen Directors Guild when it was established in 1936, and served as its first Executive Secretary, until he was replaced by Jack McGowan in 1938.
He was also an avid stamp collector, an interest that he had begun to develop in the 1930s and had directed a short film about in 1939.
[7] During preparations for Apollo 15, he asked astronaut Alfred Worden to carry 144 postal covers to the Moon and bring them back for sale.
"[9] In his retirement, Herrick wrote columns for the San Francisco Bulletin, the Los Angeles Examiner, the Boston Telegram and the London Express, and narrated a local television show in Miami, Ports of Call on WPLG-TV channel 10.