siblings of Helios xx

half siblings paternal

horse Mystify xx (Thoroughbred, 1958, from Hyperion xx)

Mystify xx

horse Moon Star xx (Thoroughbred, 1949, from Hyperion xx)

Moon Star xx

horse Mythology xx (Thoroughbred, 1951, from Hyperion xx)

Mythology xx

horse Nap xx (Thoroughbred, 1953, from Hyperion xx)

Nap xx

horse Nephthis xx (Thoroughbred, 1949, from Hyperion xx)

Nephthis xx

broodmare Nevertheless xx (Thoroughbred, 1948, from Hyperion xx)

Nevertheless xx

horse New Day xx (Thoroughbred, 1941, from Hyperion xx)

New Day xx

horse Orbit xx (Thoroughbred, 1945, from Hyperion xx)

Orbit xx

horse Peerless Light xx (Thoroughbred, 1952, from Hyperion xx)

Peerless Light xx

horse Nicky Nook xx (Thoroughbred, 1949, from Hyperion xx)

Nicky Nook xx

stallion Oceanus II xx (Thoroughbred, 1950, from Hyperion xx)

Oceanus II xx

horse Opaline xx (Thoroughbred, 1958, from Hyperion xx)

Opaline xx