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
John Henry Stelle died in 1962.
John Henry Whitley died in 1935.
Henry John Cambie died in 1928.
John Henry Muirhead died in 1940.
John Flournoy Henry died in 1873.
John Henry Bremridge died in 1994.
John Henry Puleston died in 1908.
John Henry Challis died in 1880.