(AP) NASHVILLE, Tenn. - At 91 years old, the country’s oldest mail carrier is finally hanging up his keys after driving more than 1.1 million miles delivering mail in Tennessee. According to the U.S. Postal Service, rural carrier Mancel Prince will make one more lap of his nearly 100-mile route before he retires on Friday in Decherd.

Prince was born in Tennessee and served in World War II, the Korean War and in Vietnam before retiring as a command sergeant major after 34 years. He returned home after his military career and began working as a mail carrier.

He earned a Million-Mile Safe Driving award for 35 years of accident-free driving.