Winnebago County, Illinois map, 1870

Source: 1870 Winnebago County, Illinois Map, showing former townships of New Milford (annexed 1916)  and Guilford (annexed 1929), now part of Rockford Township.

Rockford Township farm Plat map – North West, 1957

Rockford Township plat NW

Source: Farm Plat Book, Winnebago County , 1957  Sponsored by Union Grange No. 811, Inc.

Rockford Township N E , Farm Plat Book – 1957

Rockford Twonship N ESource:  Farm Plat Book, Winnebago County Illinois, 1957