siblings of Calculation xx

half siblings paternal

horse St Helena xx (Thoroughbred, 1898, from St. Florian II xx)

St Helena xx

horse Lady Florence xx (Thoroughbred, 1898, from St. Florian II xx)

Lady Florence xx

horse Aunt Anne xx (Thoroughbred, 1897, from St. Florian II xx)

Aunt Anne xx

broodmare Queens Bower xx (Thoroughbred, 1899, from St. Florian II xx)

Queens Bower xx