My Risk ( 牝 1929 栗毛 Campfire )
 |-- Fairisk ( 牝 1933 栗毛 Stimulus )
 |   `-- Miss Zibby ( 牝 1942 栗毛 Omaha )
 |   |   |-- Thoris ( 牝 1950 栗毛 Heliopolis )
 |   |   |-- Summer Tan ( 牡 1952 鹿毛 Heliopolis )
 |   |   `-- Annaly ( 牝 1956 栗毛 Spy Song )
 |-- Donita M. ( 牝 1936 栗毛 Stimulus )
 |   |-- Donitas First ( 牝 1941 Reaping Reward )
 |   |   `-- ドニタスヴィクトリー Donitas Victory [米] ( 牝 1958 鹿毛 War Admiral )
 |   `-- Spinstress ( 牝 1948 栗毛 Whirlaway )
 |   |   `-- Pupoona ( 牝 1960 栗毛 Poona )
 |-- Little Sister ( 牝 1943 栗毛 Stimulus )
 |   `-- Juvenile ( 牝 1947 栗毛 Reading )
 |   |   `-- Rejuvenate ( 牝 1952 Revoked )
 `-- Risk Me ( 牝 1949 栗毛 Some Chance )
 |   `-- Chanced ( 牝 1954 鹿毛 Revoked )
 |   |   |-- Just a Chance ( 牝 1961 鹿毛 Jester )
 |   |   `-- Mountain Memory ( 牝 1971 鹿毛 Groton )