WWilliam Backhouse Astor Jr.
WSamuel S. Brown
WCalumet Farm
WJames Ben Ali Haggin
WJohn D. Hertz
WKing Ranch
WJohn E. Madden
WThomas Clay McDowell
WFrank McMahon (oilman)
WMilky Way Farm
WAlfred Hennen Morris
WDave Hennen Morris
WSackatoga Stable
WFusao Sekiguchi
WHarry Payne Whitney
WWinStar Farm
WAhmed Zayat