To correct the historical record as reported in my post above for those who are interested:
John Johnstone was not Jim Thorpe's cabin mate for the entire trip, if he was for any portion of it. Abel Kiviat, generally documented as being Thorpe's roommate, in a 1984 interview with the NY Times described Thorpe being assigned to a different stateroom after arriving. See the link here:
https://www.nytimes.com/1984/01/13/s...ne-regret.html
The important line being, "Thorpe was assigned to Kiviat's stateroom for two nights until: "Let's say he got very happy, and they moved him down the hall, away from young guys like us.""
Also, the contemporary claim that Johnstone was the youngest to compete in the Olympics to 1912 is again disproven by Abel Kiviat. Johnstone was born in January 1892 and Kiviat in June.