Coo-ee ( 牝 1899 鹿毛 Trenton )
 |-- Cooya ( 牝 1906 栗毛 The Victory )
 |   |-- Austral ( 牝 1915 栗毛 Sunder )
 |   |   |-- Robespierre ( 牡 1922 鹿毛 Phalaris )
 |   |   `-- Aryan ( 牝 1923 鹿毛 Buchan )
 |   `-- Actrice ( 牝 1918 黒鹿毛 Achtoi )
 |   |   `-- Actor ( 牡 1934 鹿毛 Ortello )
 |-- Bill and Coo ( 牝 1909 黒鹿毛 William the Third )
 |   |-- Polylogy ( 牝 1914 鹿毛 Polymelus )
 |   |   |-- Sonora ( 牝 1918 鹿毛 Land of Song )
 |   |   |-- Queen Gossip ( 牝 1919 黒鹿毛 Comedy King )
 |   |   `-- Royal Romance ( 牝 1923 Comedy King )
 |   |-- Adoration ( 牝 1915 黒鹿毛 Neil Gow )
 |   |   `-- Friary ( 牝 1920 青毛 Friar Rock )
 |   |-- Tete-a-Tete ( 牝 1917 芦毛 The Tetrarch )
 |   |   |-- Gay Baby ( 牝 1924 芦毛 Gay Crusader )
 |   |   |-- Booktalk ( 牝 1926 芦毛 Buchan )
 |   |   |-- Careless Nun ( 牝 1930 栗毛 Abbots Trace )
 |   |   `-- Conversation Piece ( 牝 1935 芦毛 Orpen )
 |   |-- Bouleverse ( 牡 1918 鹿毛 The Tetrarch )
 |   |-- Rackety Coo ( 牝 1919 黒鹿毛 Corcyra )
 |   |   |-- Cinq a Sept ( 牝 1924 鹿毛 Roi Herode )
 |   |   |-- Ranjit Singh ( 牡 1925 鹿毛 Gay Crusader )
 |   |   |-- Rackety Lassie ( 牝 1928 鹿毛 Solario )
 |   |   |   |    1着 - ヨークシャーオークス
 |   |   `-- Cuddlededee ( 牝 1936 鹿毛 Bolingbroke )
 |   `-- Chinese Character ( 牝 1930 黒鹿毛 Winalot )
 |   |   |-- Golden Reference ( 牝 1937 鹿毛 Gold Bridge )
 |   |   `-- Golden Mark ( 牝 1944 鹿毛 Gold Bridge )
 `-- Call o' the Wild ( 牡 1913 鹿毛 Polymelus )