found: NUCMC data from Eastern Wash. State Hist. Soc. Lib. for Dunning, C.B. Papers, 1863-1909(Rockford, Wash.)
found: Rand McNally comm'l atlas, 1984(Rockford; Spokane [county])
found: GeoNames, algorithmically matched, 2009(ppl; 47°27ʹ08ʺN 117°07ʹ51ʺW)
found: Wikipedia, August 6, 2014(Rockford, Washington; town in Spokane County, Washington; first settled in 1878 by D.C. Farnsworth; officially incorporated on June 18, 1890; 47°27ʹ3ʺN 117°7ʹ58ʺW)
found: Washington place names, via WWW, August 6, 2014(Rockford is a town on Rock Creek west of the Idaho boundary in southeast Spokane County. D.C. Farnsworth, who settled there in 1879 named it for several fords across Rock Creek in the town's vicinity. A post office was established April 26, 1880 and became a second class post office on July 1, 1971. It was incorporated Jun 18, 1890; coordinates: 47.45779+N,117.1225+W)