Ryder, John Douglas, 1907-....

John (Jack) Douglas Ryder was born to John E. and Lucy Ryder in Columbus, Ohio, on 9 May 1907. He received his B.S. (1928) and M.S. (1929) in electrical engineering from Ohio State University. He received his Ph.D. (1944) from Iowa State University.

Ryder was first employed by General Electric from 1929 to 1931. He then worked for Bailey Meter Co. of Cleveland, Ohio, where he was in charge of the electronic research division from 1931 until 1941. While working there, he received twenty-four patents for automatic control applications of electronics and temperature measurement.

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