Robert A. Leighton, 74, of Arnold passed away June 7, 2011. He was born August 23, 1936, in St. Louis, the son of Robert C. and Elsie (Stelmach) Leighton. He received a Masters Degree from St. Louis University and was a retired cost manager in the manufacturing industry. Dear father of Mark Leighton and grandfather of two. Dear brother, uncle, and cousin. Funeral services will be private with interment, with full military honors, in the National Cemetery, Jefferson Barracks. The family suggests, for those who wish, donations in Mr. Leighton's memory to the charity of your choice. Arrangements under the direction of Hoffmeister South County Chapel, Saint Louis, MO.