Boundary (牝 1866 栗毛 Stockwell)
 |-- Piacenza (牝 1875 栗毛 Parmesan)
 |   `-- St Genevieve (牝 1882 栗毛 Pellegrino)
 |       `-- Little Stranger (牝 1897 鹿毛 Russell)
 |-- In Bounds (牝 1877 栗毛 Hermit)
 |   |-- Playing Fields (牝 1882 鹿毛 Adventurer)
 |   |   `-- Bowling Green (牡 1892 黒鹿毛 King Galop)
 |   |-- Mon Droit (牝 1885 栗毛 Isonomy)
 |   |   |-- Lady Marie (牝 1892 鹿毛 Petrarch)
 |   |   `-- Dieudonne (牡 1895 栗毛 Amphion)
 |   `-- Income (牝 1891 鹿毛 Isonomy)
 |       |-- Revenue (牡 1898 栗毛 Blairfinde)
 |       `-- Cheque (牝 1906 鹿毛 Santoi)
 |-- Toscano (牡 1885 栗毛 Petrarch)
 `-- Seclusion (牝 1886 栗毛 Hermit)
     `-- Lock and Key (牝 1893 鹿毛 Janissary)
         |-- Golden Key (牝 1901 鹿毛 Ladas)
         |-- Keystone (牝 1903 鹿毛 Persimmon)
         `-- Drawbridge (牝 1910 鹿毛 Bridge of Canny)