siblings of Bill and Coo xx

half siblings maternal 2 half siblings paternal 3

half siblings paternal

horse Head Cover xx (Thoroughbred, 1922, from Helmet xx)

Head Cover xx
gender-male
1922

Helmet xx / Sardanapale xx

horse Yaa Salaam xx (Thoroughbred, 2014, from Helmet xx)

Yaa Salaam xx
gender-male
2014

Helmet xx / Lycius xx

broodmare Bosh xx (Thoroughbred, 1920, from Helmet xx)

Bosh xx
gender-female
1920

Helmet xx / Magellan xx