Doctor Syntax was a British Thoroughbred racehorse and sire. Trained in Yorkshire, and racing exclusively in the North of England, Doctor Syntax won at least thirty-six races in ten seasons from 1814
'Dr Syntax', a dark bay racehorse in a loose box by John Frederick Herring, Sr.
Mr Ralph Riddell's Doctor Syntax, with Bob Johnson up by John Frederick Herring, Sr.
Dr Syntax (1821) by James Ward
Jack Spigot was a British Thoroughbred racehorse that won the 1821 St. Leger Stakes and was a sire in the early 19th century. His paternity is attributed to either Ardrossan or Marmion. His mother was
Jack Spigot as painted by John Frederick Herring Sr., 1823.
Jack Spigot as a foal with Faucet's mare in a painting by John Frederick Herring Sr. (c. 1818).
Bill Scott rode Jack Spigot for many of his early races but was disliked by the horse (portrait by John Hayes).