Home to 165,000 residents (within a 40 square mile radius), the city of Tempe is surrounded by the booming cities of Mesa, Phoenix, Scottsdale, and Chandler. But the Salt River Valley area was once populated with just a few small farms, when Charles Trumbull Hayden, owner of a mercantile and freighting business in Tucson, homesteaded here in 1870. The community he established--Hayden's Ferry--soon became the trade center for the south side of the...