Tag: J.F. Kaska

John J. Hajnos, originally from California, became a professional strongman after serving in the Navy in World War I. He performed a number of traditional feats but his most well-known is pictured here, supporting a fellow officer (in this case J.F. Kaska, who weighed 175 pounds) seated in a chair clenched between his jaws – an incredible test of balance as well as neck/jaw strength. Hajnos was a student of Lionel Strongfort’s “Strongfortism” system and actually once defeated Warren Lincoln Travis at an impromptu contest held at Coney Island.