Table:
text: United States Amateur Championship (golf)
Winners
Winners
Year_ Venue Winner Country Score Runner_up
1973 Inverness Club Craig Stadler United States 6 & 5 David Strawn
1965–72: Stroke play 1965–72: Stroke play 1965–72: Stroke play 1965–72: Stroke play 1965–72: Stroke play 1965–72: Stroke play
1972 Charlotte Country Club Vinny Giles United States 285 Mark Hayes , Ben Crenshaw
1971 Wilmington Country Club Gary Cowan Canada 280 Eddie Pearce
1970 Waverley Country Club Lanny Wadkins United States 279 Tom Kite
1969 Oakmont Country Club Steve Melnyk United States 286 Vinny Giles
1968 Scioto Country Club Bruce Fleisher United States 284 Vinny Giles
1967 Broadmoor Golf Club Bob Dickson United States 285 Vinny Giles
1966 Merion Golf Club Gary Cowan Canada 285 Deane Beman

Question: Where was the 1966 competition with a winner by Gary Cowan among winners of the United States Amateur Championship (Golf) held?