siblings of Cataclysm xx

half siblings maternal

stallion Atlantic xx (Thoroughbred, 1871, from Thormanby xx)

Atlantic xx

broodmare Whirlwind xx (Thoroughbred, 1876, from Thormanby xx)

Whirlwind xx

broodmare Sweet Galingale xx (Thoroughbred, 1870, from Blair Athol xx)

Sweet Galingale xx

broodmare Atlantis xx (Thoroughbred, 1867, from Thormanby xx)

Atlantis xx

stallion Pacific xx (Thoroughbred, 1875, from Thormanby xx)

Pacific xx