The present township of Manteno was then the east half of the township of Rockville. On March 12, 1855, the town's petition that the area become the township of Manteno was granted by the county's board of supervisors.
The present township of Manteno was then the east half of the township of Rockville. On March 12 1855 the town,'s petition, that the area become the township of Manteno was granted by the county's board of supervisors.