Okla. Stat. tit. 69, § 69-1628: Designation of portion of Highway 51 as the 42nd

“Rainbow” Infantry Division Memorial Highway.

Highway 51, starting from the Oklahoma-Texas state line, 13.0

miles west of Arnett, extending east across the state to the

Oklahoma-Arkansas state line 9.0 miles south and east of Stilwell, a

total distance of approximately 350.0 miles, not including that area

designated as the “Jim Thorpe Memorial Highway” or that area

designated as the “Broken Arrow Expressway”, shall be designated the

“42nd 'Rainbow' Infantry Division Memorial Highway”. The Oklahoma

Department of Transportation shall cause suitable permanent markers

to be placed upon the highway bearing the name.