John L Duncan was born May 1874 in Bloomington, Grant, Wisconsin, and died date unknown in Grant County, Wisconsin. He married Martha J. Houghton on 1895 in Beetown, Grant County, Wisconsin, daughter of Edward Houghton and Maria Birch.
More About John L Duncan and Martha J. Houghton: Marriage: 1895, Beetown, Grant County, Wisconsin.
Children of John L Duncan and Martha J. Houghton are:
Virgil V Duncan, b. December 31, 1901, Beetown, Grant, Wisconsin, d. June 08, 1988, Lancaster, Grant, Wisconsin.
John L Duncan (b. May 1874, d. date unknown)