Gunnar Kaasen was a Norwegian-born musher who delivered a cylinder containing 300,000 units of diphtheria antitoxin to Nome, Alaska, in 1925, as the last leg of a dog sled relay that saved the U.S. ci

Balto was a Siberian Husky and sled dog belonging to musher and breeder Leonhard Seppala. He achieved fame when he was part of a team of sled dogs driven by Gunnar Kaasen on the final leg of the 1925