Jarvis was first introduced as the faithful butler to the Avengers early on (Avengers #16), however it wasn't until the late 80s that a core support crew and dedicated team of staff began operating and assisting the Avengers.
The team were first truly created by the Captain America writer, and Avengers editor, Mark Gruenwald, although they first appeared in The Avengers #300. In Captain America #351, Captain America recruits Peggy Carter to be in charge of telecommunications. He later also recruited John Jameson, Guardsman, the superhero known as Mechanaut and a few others, The Avengers Crew on occasion ever starred in their own back-up stories in the main Avengers book.
The crew dissolved following the Onslaught saga, however more recently, the Avengers have began appointing support agents such as Maria Hill and Victoria Hand to their teams.
Major Story Arcs
Acts of Vengeance
During Doctor Doom's attack on Avengers Island, Quasar was the only Avenger present and in dire need of help Avengers Crew members Stingray and Mechanaut went into action in their respective superhero guises.