The turn of the 20th century found the little community "out by the Gravois" developing all the signs of a little town. The further development can be traced to the prominence of Gravois Road. The earliest recorded data on Gravois Road is dated 1804, according to Mr. B. Cordell Stevens, a resident of Clayton and president of the St. Louis Historical Society. On an old map this principal thoroughfare of Affton is described as the "Road that led to the Salt Spring of Clamorgan in a wagon." James Clamorgan was the name of an early Irish settler who came to Jefferson County and built a home south and east of what is now Fenton. The words "Salt Spring" refer to the saline spring, common in that region, located near this early homesite.