John Henry Orr died in 1995.
John Henry Orr was born in 1918.
John Orr Young died on 1976-05-01.
John Boyd Orr was born on September 23, 1880.
Henry B. Orr has written: 'A theory of development and heredity' -- subject(s): Evolution, Heredity
Henry John Roby died in 1915.
Henry John Wale died in 1892.
John Henry Stelle died in 1962.
John Henry Alexander died in 1867.
Henry John Wardell died in 1972.
John Henry Gurney died in 1890.
John Henry Thorpe died in 1944.
John Henry Colclough died in 1798.