John Duncan Young was born on 1823-09-22.
John Duncan Young died on 1910-12-26.
Duncan Young was born on 1969-06-04.
John Duncan Mackie was born in 1887.
John Duncan - botanist - was born in 1794.
John Alton Duncan was born in 1932.
John Holt Duncan was born in 1820.
John Duncan Gregory was born in 1878.
Duncan John McIntyre was born in 1842.
John Duncan Watson was born in 1860.
John S. Duncan was born in 1955.
John Duncan Craig was born in 1831.
John Riley Duncan was born in 1850.