siblings of Cost Johnson xx

half siblings paternal

stallion Jack Hawkins xx (Thoroughbred, 1849, from Boston xx)

Jack Hawkins xx

stallion Big Boston xx (Thoroughbred, 1849, from Boston xx)

Big Boston xx

broodmare Paralee xx (Thoroughbred, 1840, from Boston xx)

Paralee xx

stallion Red Eye xx (Thoroughbred, 1846, from Boston xx)

Red Eye xx

broodmare Peggy xx (Thoroughbred, 1848, from Boston xx)

Peggy xx

horse Boston Jr xx (Thoroughbred, 1850, from Boston xx)

Boston Jr xx