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E. A. Phillips refers Ray H. Mattison to Katherine Coleman, mentioning her connection to John Goodall, who was a foreman for the Marquis de Morès.
Theodore Roosevelt National Park
1949-11-04
Anne McDonnell writes to Ray H. Mattison regarding resources at the Historical Society of Montana for Mattison to research, mentioning the Eastern Montana Stockgrowers Association and Miles City newspapers.
Theodore Roosevelt National Park
1948-12-20
Chester L. Brooks writes to Carleton Putnam regarding an interview with T. Frank Roberts and a duel between the Marquis de Morès and Theodore Roosevelt.
Theodore Roosevelt National Park
1952-09-27