Nature's Smile ( 牝 1920 鹿毛 Rabelais )
 |-- Serenity ( 牝 1926 鹿毛 Man o'War )
 |   |-- Sickle Pear ( 牝 1931 栗毛 Sickle )
 |   |-- Black Lashes ( 牝 1934 鹿毛 Sickle )
 |   |   `-- Bea Right ( 牝 1946 鹿毛 Bimelech )
 |   |-- Secret Rose ( 牝 1936 黒鹿毛 Blue Larkspur )
 |   |   `-- Black George ( セ 1947 黒鹿毛 Reaping Reward )
 |   `-- Annunciata ( 牝 1937 黒鹿毛 Sickle )
 |-- Native Wit ( 牝 1929 鹿毛 Fair Play )
 |   `-- Native Gal ( 牝 1939 鹿毛 Sir Gallahad )
 |   |   |-- Billings ( 牡 1945 栗毛 Mahmoud )
 |   |   |-- Witty ( 牝 1946 栗毛 Rhodes Scholar )
 |   |   |-- Native Valor ( 牝 1948 黒鹿毛 Mahmoud ) 海外2勝
 |   |   `-- Royal Native ( 牝 1956 栗毛 Royal Charger )
 `-- Pellet ( 牝 1932 黒鹿毛 Man o'War )
 |   `-- Layout ( 牝 1941 黒鹿毛 Sickle )