Other Triumph/British Car Clubs

The Vintage Triumph Register (VTR) is a North American club of over 2,700 Triumph owners and enthusiasts supporting and showcasing all models of Triumphs.
PA TR Clubs Western Pennsylvania Triumph Association
PA TR Clubs Delaware Valley Triumphs, Ltd.
TR Clubs - TRA Triumph Register of America - to preserve the marque TR2, 3, 3A, 3B,4, 4A.
TR clubs - TR Register TR Register, which is a British TR club with over 8000 members
TR clubs -TR7-TR8 Owners Club World Wide TR7-TR8 Owners Club
TR clubs -TR8 Car Club of America TR8 Car Club of America
TR Clubs - 6-PACK Triumph TR6/250 Club of America
TR clubs - Club Triumph - England Club Triumph - one of England's largest Triumph Clubs -supplier list
Temple of Triumph Triumph as a state of mind
Long Island Triumph Assoc. Long Island Triumph Association
  Rocky Mtn TR Club Rocky Mountain Triumph Club
  Minnesota TR Club Minnesota Triumph Club
SCTOA Southern California Triumph Owners Association
  Triumph Travelers San Fran/Central CA TR's
Spitfire Squadron Headquarters of the North American Spitfire Squadron
 Other sports car related activities
SVRA  Sports car Vintage Racing Association
SCCA  Sports Car Club of America 
Lanco  Lancaster County MG Club
SVVSCC Susquehanna Valley Vintage Sports Car Club - a local club of all marques.