He shared his techniques with others and apprenticed many makeup artists, including Harry Ray and Gordon Bau.
He was one of Hollywood's most famous gorilla performers.
Patented many inventions in the 1950's. One of them was for 3-D movies and another for a shower deflector to protect women's hair.
He suffered a mild heart attack in his early 40's. The role of Sultan, the gorilla in "Phantom of the Rue Morgue", was completed by a stunt double due to Gemora's weakening health.
His daughter Diana talks about helping him build the Martian costume for "The War of the Worlds" (1953) in the book "A Sci-Fi Swarm and Horror Horde" (McFarland & Co., 2010) by Tom Weaver.