Careless (牝 1937 黒鹿毛 Caerleon)
 |-- Pin Up Girl (牝 1943 鹿毛 Coup de Lyon)
 |   |-- Mary Gordon (牝 1949 栗毛 Panorama)
 |   |   |-- Mary Keenan (牝 1953 栗毛 Casemate)
 |   |   |-- Mill House (牝 1957 鹿毛 Basis)
 |   |   `-- Highland Lassie (牝 1958 栗毛 Djeddah)
 |   |-- Review (牝 1951 栗毛 Panorama)
 |   |   |-- Miss Doree (牝 1957 栗毛 Aureole)
 |   |   |-- Pourparler (牝 1961 鹿毛 Hugh Lupus)
 |   |   `-- Fleet (牝 1964 鹿毛 Immortality)
 |   |-- Delightful (牝 1953 鹿毛 Golden Cloud)
 |   |   `-- Resurgent (牡 1965 鹿毛 Prince John)
 |   `-- Pinny Gray (牝 1958 芦毛 Palestine)
 |       |-- Helen Jennings (牝 1965 芦毛 Don Poggio)
 |       `-- Fast Approach (牝 1970 鹿毛 First Landing)
 |-- Careless Nora (牝 1945 鹿毛 Panorama)
 |   |-- Bootless (牝 1951 鹿毛 The Cobbler)
 |   |   |-- Say Less (牝 1957 鹿毛 Sayajirao)
 |   |   |-- Penitence (牝 1961 黒鹿毛 Petition)
 |   |   |-- Hell For Leather (牡 1964 栗毛 セントクレスピン)
 |   |   `-- Bare Costs (牝 1965 鹿毛 Petition)
 |   |-- Bandit (牡 1954 鹿毛 Fair Trial)
 |   `-- Nanka (牝 1955 鹿毛 Nasrullah)
 |       |-- Morgaise (牝 1965 栗毛 Round Table)
 |       |-- Exorbitant (牝 1968 栗毛 Sky High)
 |       |-- Bel Paese (牝 1970 鹿毛 Forli)
 |       `-- Reno (牝 1972 鹿毛 Pronto)
 `-- Comfort (牝 1951 鹿毛 Windsor Slipper)
     `-- Treat (牝 1965 鹿毛 High Treason)
         `-- Darling Dale (牝 1976 鹿毛 Tyrant)