Jack Campbell

Jack Campbell is the pen name of John G. Hemry, an American author who drew on his career as a retired United States Navy officer. Under the Campbell name he is best known for The Lost Fleet series, a space opera that he has continued with spin-offs. He also wrote the steampunk and fantasy Pillars of Reality series under that name. Hemry, born in 1956, wrote his military science fiction under his own name as well, including the Stark's War and Paul Sinclair series.