 On New Year's Day in 1864, Monaghan re-enlisted with the 48th Pennsylvania at Cincinnati, mustered in with Company F at the rank of sergeant, and was awarded a 30-day veteran's furlough.It was during his regiment's next phase of duty that Monaghan performed the act of valor for which he would later be awarded the U.S. Medal of Honor.In recalling the events later for author Theophilus F. Rodenbough, Monaghan said