John Birkbeck
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John Birkbeck (6 July 1817 ā 31 July 1890)[1] was a Yorkshireman, banker, alpinist, and pioneer potholer.
John Birkbeck (6 July 1817 ā 31 July 1890)[1] was a Yorkshireman, banker, alpinist, and pioneer potholer.