Mo. Rev. Stat. § 227.508: Staff Sergeant Norman J. Inman Memorial Highway designated for a portion of Highway 21 in Iron County.

The portion of Highway 21 in Iron County from the intersection of Highway 221 south to the intersection of Highway 72 shall be designated the "Staff Sergeant Norman J. Inman Memorial Highway". The department of transportation shall erect and maintain appropriate signs designating such highway, with the costs to be paid for by private donations.