Thomas Henry Dumbill (23 September 1884 - 9 November 1974) was a British racewalker who competed at the 1912 Summer Olympics.
[1] Dumbill finished third behind Bobby Bridge in the 2 miles walk event at the 1912 AAA Championships.
[2][3][4] Shortly after the 1912 AAA Championships he competed in the 10 km walk at the 1912 Olympic Games.
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