Back by popular demand, the Grammy Award winning Oak Ridge Boys will be appearing at Northern Oklahoma College Tonkawa Thursday, Feb. 16, as part of the Renfro Spring Lectureship Series. The 2023 Front Porch Singin’ Tour marks the 50th Anniversary of The Oak Ridge Boys. The event is sponsored by the Renfro Endowed Lectureship Program and Northern Oklahoma College. The dinner will be held at the…