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 Parker died in 1884.
John Henry Willcox died in 1875.
John Henry Lumpkin died in 1960.
John Henry Tihen died in 1940.
John Henry MacFarland died in 1935.
John Henry Nicholson died in 1923.
Henry John Butler died in 1922.
Henry John Boulton died in 1870.