Newspaper coverage speculated that murder was among the possible reasons for Thomson’s disappearance.
Dr. G. Howland, who was holidaying in Algonquin Park and who was called upon to examine Thomson's remains, concluded that Thomson died by drowning. At the time, neither he, the coroner, Park Ranger Mark Robinson (who supervised the search for Thomson), nor the Park Superintendant raised any prospect that Thomson's death had been anything other than an accident.
Going public with suspicions
The first investigator to publicly claim that Thomson had suffered fatal violence was Blodwen Davies. In summer 1931, she asked Ontario’s Attorney General to excavate Thomson’s original Algonquin Park burial place, on the grounds that the coroner’s conclusion of ‘accidental drowning’ was wrong. Davies argued that evidence taken in 1917 clearly pointed to Thomson having sustained a fatal blow to his head. She repeated this claim in her self-published book, A Study of Tom Thomson, the second she devoted to Thomson.
A conspiracy theory re-emerges
The murder theory really blossomed as an explanation during the late 1960s. A CBC documentary and book both suggested that Thomson had been killed. While the documentary is pretty much forgotten today, the book – William Little’s The Tom Thomson Mystery – provided many of the claims upon which proponents of the murder theory continue to build their case.
The contemporary writer who stands at the forefront of proposals that Thomson was murdered is Roy MacGregor. MacGregor is Canada’s most prolific author regarding the case, having produced magazine articles, a fiction book (published twice, under different titles), and most recently, a non-fiction book devoted to Thomson’s death.
During the late 1970s, MacGregor suggested that Thomson might have been killed in a fight on the night of Saturday, July 7. Evidence points, though, to several people having seen Thomson the following morning.
In 2010, MacGregor adjusted his argument that Thomson was murdered to fit with the evidence that Thomson was seen on the morning of Sunday, July 8. In his revised theory, MacGregor suggested that Thomson might have returned to Canoe Lake, seen by few, on the night of Sunday, July 8. Upon his return, according to MacGregor, Thomson was killed.
The Many Deaths of Tom Thomson - The 'Mystery' Resolved?
In The Many Deaths of Tom Thomson, I subject Davies', Little's and MacGregor's claims (as well as those of others who have written about the case) to rigourous analysis. As they all argue that Tom Thomson could very well have been murdered, the strength of their arguments is critical to evaluating the case.
Image: Tom Thomson. c. 1916. The Fisherman. Oil on canvas. Collection: Art Gallery of Alberta.
All of the links for this post direct back to excerpts of transcribed historical documents provided on the website Death On A Painted Lake: The Tom Thomson Tragedy. Gregory Klages was Research Director for the site, launched by the Great Unsolved Mysteries in Canadian History project in 2008. Klages is the author of the 2016 book, The Many Deaths of Tom Thomson: Separating Fact from Fiction (Dundurn Press).