Henrietta Turner was a Manticoran citizen and an enlisted member of the Royal Manticoran Marine Corps.

In 1900 PD, Turner was assigned to the light cruiser HMS Fearless. She later fought against the Medusans on their home planet in defense of the local government compound. (HH1)

Promoted to Sergeant, she served as a squad leader aboard HMS Gauntlet and took part in the ground assault part of the Battle of Tiberian. (HHA4.6: TSotS)