John Francois Burger (1882-1984) was born on the Great Karoo, Cape Province, South Africa, In 1905, his family moved to Southern Rhodesia. He joined famous hunters on safari, like Selous, Cooper and Von Rooyen. During World War I, he joined the Rhodesian forces, where he was assigned to supply meat for the troops—the ‘Burger buffalo campaign.’ He was wounded and discharged in 1917. He then spent 15 years in the Congo (KATANGA) and a further 15 years in Tanganyika. There he was employed by various companies in the mining business, hunting to supply meat for the workers of the railroads before WWII.
After 32 years, he retired to Southern Rhodesia in 1947. He then retired again to Majorca, Spain before finally moving back to South Africa.
He died in 1984.
Ellis Christian Lenz (March 26, 1896 - July 2, 1994) was a U.S. Army veteran, as well as an avid shooter, adventurer and outdoorsman. Affected by the losses suffered due to weapons failure during his service in WWII, on his return home in 1945 he became the inventor of Clenzoil, an effective cleaner, lubricant and rust inhibitor of weapons and other types of equipment forced to function in hostile environments.
He died in 1994 at the age of 98.