siblings of Sir Marlboro xx

half siblings paternal

broodmare Corinne Dailey xx (Thoroughbred, 1932, from Swift and Sure xx)

Corinne Dailey xx

broodmare Faculty xx (Thoroughbred, 1936, from Swift and Sure xx)

Faculty xx

broodmare Imaginary xx (Thoroughbred, 1928, from Swift and Sure xx)

Imaginary xx

broodmare Take Heed xx (Thoroughbred, 1934, from Swift and Sure xx)

Take Heed xx

broodmare Posted xx (Thoroughbred, 1934, from Swift and Sure xx)

Posted xx

broodmare Fighting Fit xx (Thoroughbred, 1947, from Swift and Sure xx)

Fighting Fit xx