Hitomi Yamaguchi, a logistics-contractor specialist, reads a thank-you note she wrote to her guests during her retirement ceremony at Marine Corps Air Station Iwakuni, Japan, Dec. 16, 2016. Yamaguchi started working at the air station in 1974 and held four jobs during her 42 years of as a stock control clerk, a voucher examiner, and an administrator specialist. However, she spent most of her time as a logistics-contractor specialist. (U.S. Marine Corps photo by Lance Cpl. Gabriela Garcia-Herrera) - Hitomi Yamaguchi, a logistics-contractor specialist, reads a thank-you note she wrote to her guests during her retirement ceremony at Marine Corps Air Station Iwakuni, Japan, Dec. 16, 2016. Yamaguchi started working at the air station in 1974 and held four jobs during her 42 years of as a stock control clerk, a voucher examiner, and an administrator specialist. However, she spent most of her time as a logistics-contractor specialist. (U.S. Marine Corps photo by Lance Cpl. Gabriela Garcia-Herrera)