Swing On ( 牝 1926 鹿毛 Whisk Broom )
 |-- Seabiscuit ( 牡 1933 鹿毛 Hard Tack )
 `-- Brown Biscuit ( 牝 1936 黒鹿毛 Sir Andrew )
 |   |-- Desert Ration ( 牡 1943 芦毛 Mahmoud )
 |   |-- Brownian ( 牝 1944 鹿毛 Sickle )
 |   |   |-- Elysium ( 牝 1953 鹿毛 Olympia )
 |   |   |-- Rullian ( 牝 1958 黒鹿毛 Nasrullah )
 |   |   `-- Spring Tan ( 牝 1960 栗毛 Summer Tan )
 |   |-- Isa ( 牝 1945 青毛 Eight Thirty )
 |   |   `-- Lucky Viola ( 牝 1959 鹿毛 Helioscope )
 |   |-- Koubis ( 牝 1946 芦毛 Mahmoud )
 |   |   |-- Determine ( 牡 1951 芦毛 Alibhai )
 |   |   `-- Try Sheep ( 牡 1966 芦毛 Determine )
 |   |-- Castanea ( 牝 1949 栗毛 Menow )
 |   |   |-- Noureddin ( 牡 1955 鹿毛 Noor )
 |   |   `-- Sebring ( 牝 1959 栗毛 Hasty Road )
 |   |-- Crouton ( 牝 1950 鹿毛 Bull Lea )
 |   |   `-- Sherry R. ( 牝 1959 鹿毛 Eight Thirty )
 |   |-- Espea ( 牡 1953 黒鹿毛 Olympia )
 |   `-- Lebkuchen ( 牝 1954 栗毛 Hill Prince )
 |   |   |-- Polygamous ( 牝 1960 鹿毛 Polynesian )
 |   |   |-- Tantoul ( 牡 1968 栗毛 Tatan )
 |   |   `-- Peter Prompt ( 牡 1971 栗毛 Pronto )