postrider

postrider

(ˈpəʊstˌraɪdə)
n
(Historical Terms) (formerly) a person who delivered post on horseback

post•rid•er

(ˈpoʊstˌraɪ dər)

n.
(formerly) a person who rode with the post; a mounted mail carrier.
[1695–1705]
References in periodicals archive ?
1771-1845) held a singing school in Cooperstown, New York, where he also served as a postrider.
Since postal service was provided by postriders on horseback,