Snap Mare ( 牝 Snap )
 |-- Alfred ( 牡 1770 鹿毛 Matchem )
 |-- Postmaster ( 牡 1771 鹿毛 Herod )
 |-- Sister To Postmaster ( 牝 1774 鹿毛 Herod )
 |   |-- Aimwell ( 牡 1782 黒鹿毛 Mark Anthony )
 |   |        1着 - '85英ダービー
 |   `-- Gipsy ( 牝 1789 青毛 Trumpator )
 |   |   |-- Bustard ( 牡 1801 黒鹿毛 Buzzard )
 |   |   |-- Cato ( 牡 1809 鹿毛 Sancho )
 |   |   |        1着 - '11ジュライS
 |   |   `-- Scheherazade ( 牝 1810 栗毛 Selim )
 |-- Herod Mare ( 牝 1774 鹿毛 Herod )
 |   `-- Trumpator Mare ( 牝 1788 鹿毛 Trumpator )
 |   |   `-- Sir Peter Teazle Mare ( 牝 1802 Sir Peter Teazle )
 `-- Peggy ( 牝 1778 鹿毛 Herod )
 |   |-- Nelly ( 牝 1787 鹿毛 Conductor )
 |   |   `-- Dairy Maid ( 牝 1794 鹿毛 Diomed )
 |   |-- Trumpetta ( 牝 1789 鹿毛 Trumpator )
 |   |   |    1着 - '91ジュライS
 |   |   `-- Miss Wasp ( 牝 1807 黒鹿毛 Waxy )
 |   |-- Spinetta ( 牝 1792 鹿毛 Trumpator )
 |   |   |-- Whiskey Mare ( 牝 1799 Whiskey )
 |   |   `-- Orville Mare ( 牝 1809 黒鹿毛 Orville )
 |   `-- Peggy ( 牝 1803 栗毛 Bedford )
 |   |   `-- Trumpetta ( 牝 1816 栗毛 Hephestion )