Kallo or Bill was the first colt by Honpolgar 4 born at the Bitteroot Stock Farm. Kallo went to Nebraska as a two year old and then returned to Montana when Honpolgar 4 went to Nebraska. He had 35 registered Hungarian offspring including the stallions: Kismiklos, Nicsak, Fontos(Warrior), Keszthely, and Berzencze. Kallo was never shown due to his importance as a breeding stallion, but his get are champions in Hunters, Jumpers, Eventing, Dressage, Endurance and Competitive Trail Riding. His son, Taszilo, was an Intermediate Event, 4th Level Dressage, and Open Hunter Champion. Taszilo also successfully completed the Tevis Cup 100 Mile in One Day ride, with Margit Bessenyey riding. Kallo’s stallion son Nicsak was a Green Hunter, Preliminary Event and 2nd Level Dressage Champion by the age of 7. His stallion son Warrior was a top competitor in the Virginia 100 Mile ride. His sons Groflo and Laszlo were favorite riding and Competitive Trail horses of Margits.