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John Munro Longyear

Author
John Munro Longyear, Sr. was an American businessman and noted developer of timber and mineral lands in the Upper Peninsula of Michigan and Minnesota who became the central figure behind the Arctic Coal Company, which surveyed and mined coalfields... Wikipedia
Born: April 15, 1850, Lansing, MI
Died: May 28, 1922 (age 72 years), Brookline, MA
Children: 7
Partner: Mary Beecher Longyear (1879–)