Uncle's Lassie (牝 1916 栗毛 Uncle)
 |-- Clyde van Dusen (牡 1926 栗毛 Man o'War)
 `-- Betty Derr (牝 1928 鹿毛 Sir Gallahad)
     |-- Pacific Maid (牝 1940 鹿毛 Torchilla)
     |   `-- Gray Fog (牝 1948 芦毛 Flushing)
     |-- Iron Maiden (牝 1941 鹿毛 War Admiral)
     |   |-- Iron Reward (牝 1946 鹿毛 Beau Pere)
     |   |-- Red Carnation (牝 1951 黒鹿毛 Sun Again)
     |   |-- Trentonian (牡 1952 鹿毛 Bull Lea)
     |   |-- アイアンリージ (牡 1954 黒鹿毛 Bull Lea)
     |   |-- Miss Grundy (牝 1955 鹿毛 Bull Lea)
     |   |-- Klondike Kate (牝 1959 鹿毛 Mark-Ye-Well)
     |   |-- Pioneer Girl (牝 1960 鹿毛 Mark-Ye-Well)
     |   `-- Spartan Woman (牝 1962 鹿毛 Tim Tam)
     `-- Judy-Rae (牝 1944 鹿毛 Beau Pere)
         |-- Tulle (牝 1950 黒鹿毛 War Admiral)
         |-- Judy Rullah (牝 1953 栗毛 Nasrullah)
         |-- Princess Matoaka (牝 1956 鹿毛 Princequillo)
         `-- Bye Bye Judy (牝 1960 鹿毛 Alibhai)