The JF Maddox Foundation and University of the Southwest welcome back Mike Rowe, best known as the “dirtiest man on TV,” as the next speaker in the Jack Maddox Distinguished Lecture Series at 7 p.m. on May 5 at R.N. Tydings Auditorium on the Hobbs High School campus. Earlier in the day, at 12 p.m., Rowe will be speaking at …