Groat (牝 1917 鹿毛 Junior)
 |-- Plack (牝 1921 栗毛 Hurry On)
 |   |-- Coin of the Realm (牝 1930 黒鹿毛 Phalaris)
 |   |   |-- Prairie Bayou (牡 1942 栗毛 Hyperion)
 |   |   `-- Midas (牡 1942 鹿毛 Hyperion)
 |   `-- Afterthought (牝 1939 鹿毛 Obliterate)
 |       |-- Fair Edith (牝 1947 鹿毛 Hyperion)
 |       `-- Prudence (牝 1951 栗毛 Dante)
 `-- Grandissima (牝 1922 鹿毛 Clarissimus)
     |-- Niagara (牝 1928 鹿毛 Hurry On)
     |   `-- Cave of the Winds (牝 1941 黒鹿毛 Holywell)
     |-- Illustrious (牝 1933 鹿毛 Bosworth)
     |   |-- Yale Blue (牝 1938 鹿毛 Felstead)
     |   |-- Coverdale (牝 1939 黒鹿毛 Loaningdale)
     |   `-- Distingue (牡 1941 鹿毛 Mahmoud)
     `-- Glenfinnan (牝 1938 栗毛 King Salmon)
         `-- Butterfly Blue (牝 1945 栗毛 Blue Peter)