Sweetwater ( 牝 1883 黒鹿毛 Hampton )
 |-- Osy ( 牝 1899 St. Simon )
 |   `-- Ultima ( 牝 1908 鹿毛 Winkfield )
 |   |   `-- Last Dart ( 牡 1921 栗毛 Spearmint )
 `-- Tendril ( 牝 1902 栗毛 St. Simon )
 |   |-- Pick of the Bunch ( 牝 1916 鹿毛 Picton )
 |   |   |-- First Flight ( 牝 1934 鹿毛 Felstead )
 |   |   `-- Brisaea ( 牝 1937 黒鹿毛 Brisl )
 |   |-- Golden Hair ( 牝 1920 黒鹿毛 Golden Sun )
 |   |   |-- Orwell ( 牡 1929 鹿毛 Gainsborough )
 |   |   |-- Marlene ( 牝 1931 鹿毛 Papyrus )
 |   |   `-- Gainsborough Lass ( 牝 1934 鹿毛 Gainsborough )
 |   `-- Springshoot ( 牝 1922 Cantilever )
 |   |   `-- Buell ( 牝 1932 芦毛 Son and Heir )