AN ACT TO DESIGNATE A SEGMENT OF MISSISSIPPI HIGHWAY 446 LOCATED IN BOLIVAR COUNTY, MISSISSIPPI, AS THE "H.M. "MACK" GRIMMETT MEMORIAL HIGHWAY"; TO DESIGNATE A SEGMENT OF MISSISSIPPI HIGHWAY 28 LOCATED IN THE SOSO, JONES COUNTY, MISSISSIPPI, AS THE "PAUL HOLIFIELD MEMORIAL HIGHWAY; AND FOR RELATED PURPOSES.