Spring Chicken ( 牝 1904 栗毛 Gallinule )
 |-- Yokohama ( 牝 1911 鹿毛 Santoi )
 |   |-- Royal Yoke ( 牝 1917 芦毛 Roi Herode )
 |   |   `-- Royal Ford ( 牡 1926 芦毛 Swynford )
 |   |-- San-Utar ( 牡 1921 栗毛 Sunder )
 |   `-- Yam ( 牝 1922 黒鹿毛 Hapsburg )
 |   |   `-- Geraldine ( 牝 1930 鹿毛 Stimulus )
 |-- Spring Thyme ( 牡 1912 鹿毛 Spearmint )
 |-- Scaramuccia ( 牝 1916 栗毛 Spearmint )
 |   `-- Scarborough ( 牝 1924 黒鹿毛 Bridge of Earn )
 |   |   |-- Impshi ( 牝 1937 鹿毛 Diavolo )
 |   |   |-- Fleetborough ( 牝 1938 栗毛 Haste )
 |   |   `-- Bayborough ( 牝 1940 鹿毛 Stimulus )
 |-- Scuola d'Atene ( 牝 1917 鹿毛 Bayardo )
 |   |-- Scuola Genovese ( 牝 1924 鹿毛 Galloper Light )
 |   |   |-- Schiavona ( 牝 1931 栗毛 Captain Cuttle )
 |   |   |-- Scuola Bolognese ( 牝 1934 黒鹿毛 Blandford )
 |   |   `-- Simone da Bologna ( 牡 1940 鹿毛 Donatello )
 |   `-- Sanzio ( 牡 1928 鹿毛 Papyrus )
 |-- Scopas ( 牡 1919 鹿毛 Sunstar )
 |-- Scarsellino ( 牡 1920 黒鹿毛 Signorino )
 `-- Scopello ( 牡 1923 鹿毛 Havresac )