The letter to Townsend Whelen was in an Arms and the Man magazine. I learned about the meeting in Alberta from an article in the June, 1924 issue of Outdoor Life. The title was With Pack Train and Tepee in the Rockies of Alberta by Frank Conger Baldwin. Dr. Knutson with advice from Whelen had quizzed Stanley Clark (recipient of the Whelen-Wundhammer) on guiding him but did not want to pay the price so he hired a couple of local Indians to pack him into game country. The hunting party lead by Stanley Clark were not happy about it. In the article he is referred to as "A Certain Doctor in Reynolds, ILL."
