The circuit rider
was best known in eighteenth century America
s were few and far between and could not always provide enough of a congregation
to support a preacher
for each town. So a minister
would ride on horseback
from place to place, holding services in each location in whatever building would hold the congregation, christen
ing whoever had been born since the last visit, saying funeral
s over the newest graves, and also carrying news
from town to town. It might take five weeks to make the entire round. The Methodist
church seems to be most well known for sending out these "backwoods
preachers"; John Wesley
first used the system in England when forming the denomination, and Francis Asbury
followed his lead in the New World. However, Lutheran
churches in Upper Michigan
are still using the term for their traveling lay ministers.
The phrase was also used to describe judges, both state and federal, who rode around hearing cases in different locations throughout the thinly settled states. The first U.S. judges rode circuits in 1790, and such people as Abraham Lincoln rode along with the judges as lawyers to offer their services in the cases being tried.
A Google search reveals that the phrase is now being used for just about anyone who travels from place to place for work, be it teaching, troubleshooting machines, working in local government for multiple towns, or whatever. There seem to be several newsletters using the name as well.
Odie B. Faulk, "Circuit rider," Discovery Channel School, original content provided by World Book Online, http://www.discoveryschool.com/homeworkhelp/