Basil Horton played for the Falmouth Falcons, a Quidditch team from England, in the 1920s. Along with his Falcons teammate Randolph Keitch, he started the Comet Trading Company in 1929. He and Randolph are also the creators of the Horton-Keitch Braking Charm (QA9).
Horton was formerly a professional Quidditch player with the Falmouth Falcons - and a developer of the Comet series of brooms, but we don't actually know what Quidditch position he played.
Lexicon timeline of Quidditch
Lexicon list of Broom Manufacturers
From the Web
Harry Potter Wiki: Basil Horton
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