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)