Stockton was a charter member of the California League with the most recent franchise relocating to Visalia following the 1972 season.
The new Stockton franchise was owned by Joe Gagliardi, who simultaneously was operating the San Jose Missions under a lease agreement.
Stockton signed an affiliation with the Seattle Mariners and adopted their parent club's namesake.
Bobby Floyd, who had led the Seattle's short-season affiliate in Bellingham to a league championship the previous year was tabbed as manager.
[2] Following the season the club ended their working arrangement with Seattle and signed on with the Milwaukee Brewers.