[PAR] [TLE] Arthur Treadwell Walden [SEP] Arthur Treadwell Walden (May 10, 1871 – March 26, 1947) was a Klondike Gold Rush adventurer, dog driver and participant in the first Byrd Antarctic Expedition.  He is also known as an author and developer of the Chinook sled dog breed. [PAR] [TLE] Chinook (dog) [SEP] The Chinook is a rare breed of sled dog, developed in the state of New Hampshire during the early 20th century.  The Chinook is New Hampshire's official state dog.
[PAR] [TLE] Arthur Treadwell Walden [ SEP ] Arthur Treadwell Walden ( May 10 , 1871 – March 26 , 1947 ) was a Klondike Gold Rush adventurer , dog driver and participant in the first Byrd Antarctic Expedition . He is also known as an author and developer of the Chinook sled dog breed . [PAR] [TLE] Chinook ( dog ) [ SEP ] The Chinook is a rare breed of sled dog , developed in the state of New Hampshire during the early 20th century . The Chinook is New Hampshire 's official state dog .
Which expedition was the man who developed the Chinook dogsled breed part of?
Which expedition was the man who developed the Chinook dogsled breed part of ?
Byrd Antarctic Expedition
Byrd Antarctic Expedition