Postillion

A postilion (or postillion, occasionally Anglicised to "post-boy") rider was the driver of a horse-drawn coach or post chaise, mounted on one of the drawing horses. By contrast, a coachman would be mounted on the vehicle along with the passengers.

Postilion riders normally rode the left (or "near") horse of a pair because horses usually were trained only to be mounted from the left. With a double team, either there would be two postilions, one for each pair, or one postilion would ride on the left rear horse in order to control all four horses.

Postilions typically wore a special rigid boot on their right leg for protection from possible crushing injury due to contact with the central wooden shaft (if any) and the horses.

This style of travel was known as "posting". The postilions and their horses (known as "post-horses") would be hired from a "postmaster" at a "post house". The carriage would travel from one post house to the next (a journey known as a "stage"), where the postilions and/or spent (exhausted) horses could be replaced if necessary. In practice unless a return hire was anticipated a postilion of a spent team frequently was also responsible for returning them to the originating post house.

Posting was once common both in England and in continental Europe. In addition to a carriage's obvious advantages (a degree of safety and shelter for the inside passengers and accessibility to non-riders) on long trips it tended to be the most rapid form of passenger travel. Individually mounted riders are subject to their personal endurance limits, while posting could continue indefinitely with brief stops for fresh horses and crew. In England, posting declined once railways became an alternative method of transport, but it remained popular in France and other countries.

The gun detachments of the King's Troop, Royal Horse Artillery are each driven by a team of three post riders. The King's Troop is a ceremonial unit equipped with World War I veteran 13 pounder field guns drawn by six horses in much the same configuration as the guns of the 19th and early 20th century would have been. Officers and Senior Non-Commissioned Officers (NCOs) ride separately.

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