Source: Plat Map of Winnebago County, Illinois
Exact year not known, various landmarks in book, such as Willwood Cemetery and Seward Bluff Forest Preserve indicate the maps were post-1929 and pre-1941. Guilford Township merged into Rockford Township.
**Rockford Municipal Airport was operated by Fred Machesney, who also was a sales representative for airplane sales. It was used for pilot training including to WWII Camp Grant pilots. Greater Rockford Airport, now Chicago Rockford International Airport, was created after World War II when Camp Grant land was deed to Rockford for an airport. Many people referred to the earlier Rockford Municipal Airport as Machesney Airport, to distinguish from Rockford Airport.