Passan ( 牝 1900 鹿毛 Hamburg )
 |-- Fox Trot ( 牝 1914 栗毛 Star Shoot )
 |   `-- Toddle ( 牝 1919 栗毛 Celt )
 |   |   |-- Dr. Freeland Dr. Freeland [米] ( 牡 1926 栗毛 Light Brigade ) 海外25勝
 |   |   |        1着 - プリークネスS
 |   |   `-- Swivel ( 牝 1930 鹿毛 Swift and Sure )
 |-- Post Mark ( 牝 1915 青毛 Star Shoot )
 |   `-- Postage ( 牝 1925 栗毛 Fair Play )
 |   |   |-- Posted ( 牝 1934 黒鹿毛 Swift and Sure )
 |   |   `-- Penny Postal ( 牝 1936 栗毛 High Time )
 |-- Passing Shower ( 牝 1916 鹿毛 Ormondale )
 |   `-- Katrina ( 牝 1922 鹿毛 Brown Prince )
 |   |   |-- Mokatam ( 牡 1927 鹿毛 Bud Lerner )
 |   |   |-- Lucille Wright ( 牝 1930 鹿毛 Bud Lerner )
 |   |   `-- Katydid ( 牝 1935 鹿毛 Display )
 |-- Laurano ( 牡 1921 黒鹿毛 Peter Pan )
 `-- Susan Grover ( 牝 1923 栗毛 Ballot )
 |   `-- Susan Thatcher ( 牝 1931 黒鹿毛 General Thatcher )
 |   |   `-- Sundodger ( 牡 1937 黒鹿毛 Bull Dog )