I found a reference for a Gus Burkhardt :
- Birth: July 1878
- Death: ** December 1967
- Social Security Number (SSN): ***-09-767
Also for a George Burkhart in Tops Vol 12, November 1947:
THE STORY OF BUBKHART By Fred C. Landrus, Sr.
"George Burkhart became interested in Magic in 1890 at the age of 14 and bought a few tricks here and there. One day he heard of a Magic shop on the Bowery — Otto Mourer's Magic Shop and here he purchased bis first mechanical tricks — Rice Bowls, Cannon Ball with Orange and Rising Cards. He also became very adept with coins and cards."