Port Gardner is an inlet of Possession Sound on which the city of Everett, Washington is located. The Snohomish River flows into the bay.
Map of Port Gardner, Everett, WA 98201, USA
It was named by George Vancouver for his patron and former commander, Alan Gardner. Vancouver meant the name to apply to all of Saratoga Passage, but over time it came to refer to only the bay near Everett.
References
Port Gardner Wikipedia(Text) CC BY-SA