Dr. Edward George Ervin
Dubuque, Iowa: 18th August 1875 - 7th January 1947
Dentist in Kansas City, Missouri. Amateur magician. Dealer (secretly). Invented Spring Bills (by 1944). Wrote 4 booklets 1937-44, collected as Club Deceptions (1944, 52pp). See Dariel Fitzkee, The Strange Inventions of Dr. Ervin (1937). Tricks in Jinx.