Rackety Coo ( 牝 1919 黒鹿毛 Corcyra )
 |-- Cinq a Sept ( 牝 1924 鹿毛 Roi Herode )
 |   |-- Assignation ( 牝 1930 鹿毛 Teddy )
 |   |   |-- Cinquepace ( 牝 1934 鹿毛 Brown Bud )
 |   |   |-- Estoril ( 牝 1941 栗毛 Stimulus )
 |   |   `-- Boola ( 牝 1946 栗毛 Boojum )
 |   |-- Gentle Tryst ( 牝 1933 鹿毛 Sir Gallahad )
 |   |   |-- Up the Hill ( 牝 1938 鹿毛 Jacopo )
 |   |   |-- Jacsdate ( 牝 1943 黒鹿毛 Jacopo )
 |   |   `-- Dizzy Whirl ( 牝 1946 鹿毛 Whirlaway )
 |   `-- Twilight Tryst ( 牝 1935 栗毛 Gallant Fox )
 |   |   `-- Balla Tryst ( 牝 1940 黒鹿毛 Balladier )
 |-- 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 )
 |   `-- Closeburn ( 牡 1944 黒鹿毛 Bellacose )