<P> Jack Keetley was hired by A.E. Lewis for his Division at the age of nineteen, and put on the run from Marysville to Big Sandy . He was one of those who rode for the Pony Express during the entire nineteen months of its existence . </P> <P> Jack Keetley's longest ride, upon which he doubled back for another rider, ended at Seneca where he was taken from the saddle sound asleep . He had ridden 340 miles (550 km) in thirty - one hours without stopping to rest or eat . After the Pony Express was disbanded, Keetley went to Salt Lake City where he engaged in mining . He died there on October 12, 1912 where he was also buried . </P> <P> In 1907, Keetley wrote the following letter (excerpt): </P> <P> Alex Carlyle was the first man to ride the Pony Express out of St. Joe . He was a nephew of the superintendent of the stage line to Denver, called the "Pike's Peak Express ." The superintendent's name was Ben Ficklin . Carlyle was a consumptive, and could not stand the hardships, and retired after about two months trial, and died within about six months after retiring . John Frye was the second rider, and I was the third, and Gus Cliff was the fourth . </P>

Where did the first pony express mail delivery take place