10 He and his successors, Milton and Eva Seeley, supplied many dogs for the Byrd Antarctic expeditions in the 1930s.
11 The Seeleys began a program to reproduce the dogs found in the Norton Sound area of Alaska. This strain of Alaskan Malamutes became known as the "Kotzebue" strain.
12 A slightly different strain was developed by Paul Voelker, Sr. with dogs he bought in Alaska in the early 1900s and later in the 1920s. This strain was known as the "M'Loot" strain.