Johanna Southcote (牝 1811 栗毛 Beningbrough)
 |-- Leeway (牝 1823 栗毛 Aladdin)
 |   `-- Billow (牝 1837 栗毛 Taurus)
 |       `-- Surge (牝 1849 栗毛 Envoy)
 |-- Young Johanna Southcote (牝 1826 鹿毛 Walton)
 |   `-- Doctor (牡 1840 黒鹿毛 Physician)
 |-- Variation (牝 1827 鹿毛 Bustard)
 |   |-- Elphine (牝 1837 鹿毛 Emilius)
 |   |   |-- Incurable (牝 1848 鹿毛 The Cure)
 |   |   |-- The Incurable (牝 1848 鹿毛 The Cure)
 |   |   |-- The Cure Mare (牝 1849 鹿毛 The Cure)
 |   |   |-- Lambton (牡 1850 鹿毛 The Cure)
 |   |   `-- Warlock (牡 1853 芦毛 Birdcatcher)
 |   |-- Evasion (牝 1839 栗毛 Emilius)
 |   |   `-- Subterfuge (牝 1847 栗毛 Sir Hercules)
 |   |-- Pompey (牡 1840 鹿毛 Emilius)
 |   `-- Emilius Mare (牝 1843 鹿毛 Emilius)
 |       `-- Falstaff Mare (牝 1849 鹿毛 Falstaff)
 `-- Diversity (牝 1830 鹿毛 Muley)
     `-- Bustard Mare (牝 1837 Bustard)
         `-- Hornsea Mare (牝 1841 Hornsea)