William D. Byrnes, 77, of South Whitehall Township, Pennsylvania, passed away on Monday, May 6, at Lehigh Valley Hospital in Salisbury Township. He was the husband of Sarah (“Sally”) M. (DeMartino) Byrnes, with whom he shared nearly 46 years of marriage this coming August. Born in East Orange, he was the son of the late Virginia (Ferguson) and Peter Byrnes. After serving in the US Army, he worked since 1967 as a draftsman for Smith Industries, which later became BAE Systems, New Jersey, retiring in 2010. He attended the United Presbyterian Church, West Orange, NJ. He was a past Exalted Ruler of Livingston Elks Lodge 1855; enjoyed golfing and reading, especially James Patterson and Harlan Coban books.