Pedigree of Key Discovery xx

father

stallion Discovery xx (Thoroughbred, 1931, from Display xx)

Discovery xx

Thoroughbred
1931

stallion Display xx (Thoroughbred, 1923, from Fair Play xx)

Display xx

Thoroughbred
1923

Ariadne xx

Thoroughbred
1926

Adrienne xx

Thoroughbred
1919

mother

Attara xx

Thoroughbred
1935

Father of mother

Archaic xx

Thoroughbred
1917

stallion Polymelus xx (Thoroughbred, 1902, from Cyllene xx)

Polymelus xx

Thoroughbred
1902

Margaret Burr xx

Thoroughbred
1925