Note 2 — THOROUGHBREDS AND TROTTERS AS SADDLE-HORSES
Reading edition
An animal, especially a horse, of pure blood, stock, or race; strictly, and as noting horses, a race-horse all of whose ancestors for a given number of generations (seven in England, five in America) are recorded in the stud-book. In America the name is now loosely given to any animal that is of pure blood and recorded pedigree, ... whose ancestry is known and recorded for five generations of dams and six of sires.—C. D.