Lyon, Robert L. of Lexington, March 13, 2014. Husband of the late Dolores A. (Watson). Father of Victoria Lyon Martin of Greenwich, CT, and Jeffrey L. Lyon of Lexington. Brother of Dorothy Fietze of Burlington, Judith Quinn of Hudson, Elizabeth Bucell of Lexington, and the late William H. Lyon Jr. and Richard Lyon. Grandfather of Dr. Katherine Rudich-Baldwin, William H. Lyon II, R. Lowell Lyon, Elizabeth Lyon Martin, and James Lyon Martin. Bob is also survived by many nieces and nephews. A memorial service will be held Monday June 9 at the Church of Our Redeemer, 6 Meriam St. Lexington at 10am. Relatives and friends are kindly invited to attend. Interment to follow at Westview Cemetery, Lexington. Donations in his memory may be made to the Alzheimers Association, 31 Arsenal St. Watertown, MA 02472.