Bill Buchan Sr. was a Scottish-born American sailor, yacht designer, and boat builder.
[1] Buchan won the 1955 Clifford Day Mallory Cup together with William Earl Buchan and Ron McFarlane for Pacific International YA.
[2] Together with his son John Buchan, he designed the Buchan 37 yacht in the 1960s.
[3] He was the father of Olympic sailor William Carl Buchan and grand father of Olympic sailor William Carl Buchan.
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