Faith Garland was a nurse in the United States Army Air Forces in 1947, when the three Ferengi, Quark, Rom, and Nog, crash landed in Roswell, New Mexico, after having accidentally traveled back in time from the year 2372.
Garland and her fiancé, Professor Jeff Carlson, were part of the team tasked with investigating the three aliens. In that capacity, she befriended the Ferengi, and attempted to defend them when she felt they were being treated too harshly. Later, Nurse Garland was tasked with assisting Air Forces captain Wainwright in his interrogation of the aliens, and repeatedly injected Quark with Sodium Pentathol under orders from the captain. When Wainwright, who was convinced that the Ferengi were part of an alien invasion force, threatened to harm them with a scalpel, Garland and Carlson incapacitated him, and helped the Ferengi escape.
They subsequently took them to Hangar 18, where their ship was being stored, allowing them to leave and return to their own time by recreating the time warp which transported them back in time in the first place. (DS9: "Little Green Men")
Her first name comes from the script.
According to the novels The Rise and Fall of Khan Noonien Singh, Volume One and The Rise and Fall of Khan Noonien Singh, Volume Two, she and Jeff Carlson were married as planned after the events of "Little Green Men". By 1986, she had retired as an Army nurse. She died prior to 1996.