"Some years later, novelist Ivan Doig (1939-2015) spent a season exploring the diaries and the places in Washington where Swan lived and traveled. Doig's Winter Brothers (1980) is a unique and fascinating memoir that combines an account of Swan's life, including many quotations from the diaries, with Doig's meditations on Swan's life and times as well as his own."
https://www.historylink.org/File/5029
