Problem (牝 1914 栗毛 Superman)
 |-- Friar's Carse (牝 1923 栗毛 Friar Rock)
 |   |-- Black Carse (牝 1927 黒鹿毛 Black Toney)
 |   |   `-- Playfull (牝 1940 栗毛 Chance Play)
 |   |-- Speed Boat (牝 1930 栗毛 Man o'War)
 |   |   |-- Swing Time (牝 1935 栗毛 Royal Minstrel)
 |   |   |-- The Sward (牝 1936 青毛 Sickle)
 |   |   |-- Annapolis Blue (牡 1937 黒鹿毛 Blue Larkspur)
 |   |   |-- Level Best (牝 1938 栗毛 Equipoise)
 |   |   |-- P T Boat (牝 1941 青毛 Trace Call)
 |   |   `-- Orrilla (牝 1944 黒鹿毛 Blue Larkspur)
 |   |-- Anchors Ahead (牝 1932 栗毛 Man o'War)
 |   |   |-- On the Level (牝 1939 青毛 Sickle)
 |   |   |-- Price Level (牝 1942 青毛 Sickle)
 |   |   |-- Air Hero (牡 1943 栗毛 Blenheim)
 |   |   |-- Honor Bound (牝 1945 黒鹿毛 Bull Dog)
 |   |   `-- Moolah Bux (牡 1952 芦毛 Mahmoud)
 |   |-- War Relic (牡 1938 芦毛 Man o'War)
 |   |-- War Kilt (牝 1943 栗毛 Man o'War)
 |   |   |-- Providence (牝 1947 黒鹿毛 Easton)
 |   |   |-- Big Money (牡 1949 鹿毛 Bull Lea)
 |   |   `-- Lady o'War (牝 1956 栗毛 Princequillo)
 |   `-- Air Comet (牝 1946 黒鹿毛 War Admiral)
 |       `-- Stratafire (牝 1951 芦毛 Mahmoud)
 |-- Afloat (牝 1929 栗毛 Man o'War)
 |   `-- Milk Dipper (牝 1935 栗毛 Milkman)
 |       `-- Darling Carol (牝 1955 Sun Again)
 `-- Carmanchita (牝 1932 鹿毛 Sickle)
     `-- Yankee Lass (牝 1941 Son o'Battle)
         `-- ジエツト  [米] (牝 1950 黒鹿毛 Sabu)