Ohio Rev. Code § 5534.892: First Lt. Harry L. Martin Memorial Highway.

In addition to any other name prescribed in the Revised Code or otherwise, the portion of the road known as United States route number thirty, running in an easterly and westerly direction, between the intersection of that route and state route two hundred thirty-one and the intersection of that route and state route five hundred ninety-eight, in Wyandot and Crawford counties, shall be known as the "First Lt. Harry L. Martin Memorial Highway."

The director of transportation may erect suitable markers along the highway indicating its name.