The All American Open was a golf tournament on the PGA Tour in the 1940s and 1950s. It was played at the Tam O'Shanter Country Club in Niles, Illinois. It was run by George S. May and was originally known as the Tam O'Shanter National Open. From 1944 to 1946 it offered $10,000 winner's prize. The purses dropped to normal PGA Tour levels when May added the World Championship of Golf to the events played at Tam O'Shanter. May eventually added men's amateur, women's open, and women's amateur "All American" and "World Championship" events, all played at Tam O'Shanter over a two-week period in August. The tournaments were cancelled in 1958 in a dispute between May and the PGA over player entrance fees.
Winners YearWinnerScoreTo parMargin ofvictoryRunner(s)-upWinner'sshare ($)All American Open 1957 Roberto De Vicenzo 273 −15 4 strokes Gene Littler 3,500 1956 Dutch Harrison 278 −10 2 strokes Earl Stewart 3,400 1955 Doug Ford 277 −11 3 strokes Leo Biagetti 3,420 1954 Jerry Barber 277 −11 1 stroke Gene Littler 3,420 1953 Lloyd Mangrum (3) 275 −13 3 strokes Ted Kroll Sam Snead 3,420 1952 Sam Snead 271 −17 8 strokes Tommy Bolt 3,420 1951 Cary Middlecoff 274 −14 2 strokes Fred Hawkins 2,250 1950 Bobby Locke (2) 282 −6 Playoff Lloyd Mangrum 2,500 1949 Lloyd Mangrum (2) 276 −12 1 stroke Sam Snead 3,333 1948 Lloyd Mangrum 277 −11 2 strokes Bobby Locke 5,000 1947 Bobby Locke 276 −12 Playoff Ed Oliver 7,000 1946 Herman Barron 280 −8 1 stroke Ellsworth Vines 10,500 1945 Byron Nelson (4) 269 −19 11 strokes Ben Hogan Gene Sarazen 10,200 1944 Byron Nelson (3) 280 −8 5 strokes Ed Dudley 10,100 1943 Jug McSpaden 282 −6 Playoff Buck White 2,000Tam O'Shanter National Open 1942 Byron Nelson (2) 280 −8 Playoff Clayton Heafner 2,500 1941 Byron Nelson 278 −10 1 stroke Leonard Dodson Ben Hogan 2,000
See also All American Open (LPGA Tour)
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