siblings of Grand Mary xx

half siblings paternal

horse Lydia xx (Thoroughbred, 1944, from Grand Slam xx)

Lydia xx

stallion Piet xx (Thoroughbred, 1945, from Grand Slam xx)

Piet xx

broodmare By Me xx (Thoroughbred, 1946, from Grand Slam xx)

By Me xx

broodmare Extra Tricks xx (Thoroughbred, 1945, from Grand Slam xx)

Extra Tricks xx

stallion Devil's Thumb xx (Thoroughbred, 1940, from Grand Slam xx)

Devil's Thumb xx

broodmare Contenta xx (Thoroughbred, 2007, from Grand Slam xx)

Contenta xx

broodmare Grand League xx (Thoroughbred, 1945, from Grand Slam xx)

Grand League xx