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First name origin & meaning:

Scottish: Son of Kinley

First name variations: MacKinley

Last name origins & meanings:

  1. Scottish: Anglicized form of Gaelic Mac Fionnlaigh, a patronymic from the early personal name Fionnlaoch (see Finley).
  2. William McKinley (1843–1901), 25th U.S. president, was born at Niles, OH, a descendant of David McKinley, known as ‘David the Weaver’, of Scotch–Irish stock, who settled in York Co., PA, about 1743. William McKinley’s family were iron founders who tracked the ore from the Susquehanna Valley in PA to Columbiana Co., OH.

This name appears in the following lists: First Ladies, Mountains and Valleys, Presidents' Kids, Stars and Planets, U.S. Presidents