Jack Campbell is a pseudonym for American science fiction author
John G. Hemry.
Librarian Note: There is more than one author in the GoodReads database with this name. See this thread for more information. John G. Hemry is an American author of military science fiction novels. Drawing on his experience as a retired United States Navy officer, he has written the Stark's War and Paul Sinclair series. Under the name Jack Campbell, he has written four volumes of the Lost Fleet series, and on his web…
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