Herman Zimmerman was a Starfleet officer in the 24th century. He was a captain in the years 2363-2370.
In 2364, he was the commander of the USS Nightwing. (TNG: "Conspiracy", okudagram)
In 2368, he was listed as an Engineering Group officer on the second dedication plaque of the USS Enterprise-D. (TNG: "Silicon Avatar", dedication plaque)
In 2370, he was the commander of the USS Yorktown on a Deep Space 9 arrival roster. (DS9: "Whispers", okudagram)
In the 2370s, he was listed as a Science Ops officer on the dedication plaque of Defiant-class starships. (DS9: "The Die is Cast", dedication plaque; DS9: "Valiant", USS Valiant dedication plaque; DS9: "The Dogs of War", dedication plaque)
In 2372, he was listed as a Spaceframe Development officer on the dedication plaque of the USS Enterprise-E. (Star Trek: First Contact, dedication plaque)
