"San Francisco Park Patrol" . . . . . "1919" . . . . . . . . . . "United States Park Police" . . . "U.S. Park Police Special Weapons and Tactics Team" . . . . . . . "U.S. Park Police" . . . "United_States_Park_Police#History" . . . "park police" . . . . "United States Park Police" . . . . . . "Park Police" . . . . . . . . "U.S. Park Police SWAT team" . . "US Parks Police" . . . . . "US Park Police" . . "U.S. Parks Police" . . .