siblings of Efficient xx

half siblings paternal

horse Point Pleasant xx (Thoroughbred, 1955, from Princequillo xx)

Point Pleasant xx

stallion Prince Simon xx (Thoroughbred, 1947, from Princequillo xx)

Prince Simon xx

horse Royal Gossip xx (Thoroughbred, 1958, from Princequillo xx)

Royal Gossip xx

stallion Third Brother xx (Thoroughbred, 1953, from Princequillo xx)

Third Brother xx

horse Chapel xx (Thoroughbred, 1952, from Princequillo xx)

Chapel xx

broodmare Stunning Upset xx (Thoroughbred, 1956, from Princequillo xx)

Stunning Upset xx

broodmare Sail Navy xx (Thoroughbred, 1958, from Princequillo xx)

Sail Navy xx

broodmare Bethlehem xx (Thoroughbred, 1963, from Princequillo xx)

Bethlehem xx

broodmare Roodles xx (Thoroughbred, 1952, from Princequillo xx)

Roodles xx

broodmare Magical Hour xx (Thoroughbred, 1958, from Princequillo xx)

Magical Hour xx

horse More So xx (Thoroughbred, 1961, from Princequillo xx)

More So xx

stallion Charlevoix xx (Thoroughbred, 1953, from Princequillo xx)

Charlevoix xx