Whirlabout (牝 1941 鹿毛 Pompey)
 |-- Sybil (牝 1947 鹿毛 Beau Pere)
 |   `-- Sybil Brand (牝 1956 栗毛 Khaled)
 |       |-- Hate to Wait (牝 1962 黒鹿毛 Nashua)
 |       `-- Noble Commander (牡 1965 黒鹿毛 Bold Ruler)
 |-- Spinning Top (牝 1950 黒鹿毛 Bull Lea)
 |   |-- Spinning Reel (牝 1957 黒鹿毛 Alibhai)
 |   |   `-- Ring of Steel (牝 1969 青毛 Assagai)
 |   |-- Nasroulette (牝 1958 鹿毛 Nasrullah)
 |   |   `-- Las Vegas (牝 1963 栗毛 Intent)
 |   `-- Final Ruling (牡 1960 黒鹿毛 Nasrullah)
 `-- Dark Circles (牝 1955 鹿毛 Dark Star)
     `-- Whirl for Joy (牝 1960 黒鹿毛 Johns Joy)
         `-- Joyous Lass (牝 1968 Lurullah)