William Darney retired at the rank of commander from the U.S. Navy. As a former supply corps officer, he served on USS Skipjack (SSN-585), USS Tarawa (LHA-1) and USS Lake Erie (CG-70). Ashore, he served at the U.S. Submarine School, Groton, Connecticut; Navy Supply Information Systems Activity, Mechanicsburg, Pennsylvania; Defense Supply Center Richmond, Richmond, Virginia; military advisor in the Afghanistan/Pakistan Hand Program at U.S. Central Command, Tampa Bay, Florida. He also served as logistics and joint operational planning and execution systems planner at U.S. Central Command. His last assignment was as the executive officer, Center for Service Support, Newport, Rhode Island.