Mo. Rev. Stat. § 227.409: Jack Buck Memorial Highway designated for portion of Interstate I-64/US 40.

The portion of Interstate Highway I-64/US 40 from the McCausland/Skinker interchange east to the I-64/I-55 interchange shall be designated the "Jack Buck Memorial Highway". The department of transportation shall erect and maintain appropriate signs designating such highway designation, with the cost to be paid for by private donation.