Karr performed hanging strait jacket escapes, and could jump eight feet into the air into a pile of broken glass, and "inquisition" packing case escapes, and disappearances.
He was a charter member of the South African ring, number 54.
He was a member of the International Brotherhood of Magicians, number 3308.
His last act was in Springfontein, in the Orange Free State, in 1930.
He was straped into a strait jacket, while a car accelerated from 180meters / 200 yards, accelerating to a speed of 72 Km per hour / 45 mph. He was unable to get out in time, and was run over by the car, which almost severed his leg. This happened in front of a large group of people, including small children.