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Edwin Cowles (1825–1890), born in Austinburg, was the publisher of The Cleveland Leader, Vice-President of the 1884 Republican National Convention, postmaster of Cleveland, April 4, 1861 - July 11, 1865, and elder brother of Alfred Cowles, Sr., also a newspaper publisher.
- Orth 1910 : 787
- Orth, Samuel P (1910). A history of Cleveland, Ohio 1. Chicago: S J Clarke Publishing Company.
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