siblings of Sister Union xx

half siblings maternal 2 half siblings paternal 119

half siblings maternal

broodmare Gradation xx (Thoroughbred, 1936, from Gallant Fox xx)

Gradation xx
gender-female
1936

Gallant Fox xx / American Flag xx

stallion Great Union xx (Thoroughbred, 1935, from Sir Gallahad III xx)

Great Union xx
gender-male
1935

Sir Gallahad III xx / American Flag xx