This was a cluster of nondescript buildings, named for Jerry McGuire, a burly Irishman who settled here with his Native American wife in the early 1870s. Horses were then in great demand for pack trains and stagecoaches and soon the hills were filled with half-wild mustangs and cayuses, the band at one time numbering more than 1,000, all marked with McGuire’s brand—the head of a horse. The place was named for him in 1906 by John Knight. Previously, it had been known as Grand Junction, because Asotin and George creeks meet on the site.