Mrs. Gamp (牝 1900 鹿毛 St. Simon)
 |-- At Last (牝 1910 鹿毛 Great Scot)
 |   |-- Soumission (牝 1916 鹿毛 Chaucer)
 |   `-- Kentish Knock (牡 1922 栗毛 Galloper Light)
 `-- Radium Mare (牝 1913 鹿毛 Radium)
     |-- Bright Hackle (牝 1917 栗毛 Royal Hackle)
     |   |-- Athlone Lass (牝 1924 鹿毛 Athlone)
     |   `-- Irish Lancer (牝 1929 鹿毛 Allenby)
     `-- Radiogram (牝 1919 鹿毛 Juggernaut)
         `-- Shannon Jug (牝 1923 黒鹿毛 Athlone)