Nathaniel Russell Sturgis,of Waltham, February 19, 2006. Beloved husband of Ecaterini (Satolias)Sturgis. Devoted father of Christine Gray and her husband Merle ''Sonny'' of Maine, and Josephine G. Sturgis and her partner Judy Mesle of Arlington. Brother of Robert Shaw Sturgis of Weston and the late Neville Sturgis. Also survived by many nieces and nephews. Donations in his memory may be made to the charity of one's choice. A memorial service will be held in the spring.