Maynard - Mr. Louis H. 'Lou' Cannistraro of Maynard, formerly of Waltham, died Friday March 4, 2005 in Lahey Clinic Medical Center, Burlington. He was 47. Born in Waltham, he was a sales manager for CPU Sales and Service in Waltham for many years. He was a member of the Maynard Elks, as well as the Wayland Country Club where he was the vice-president of the Inner Club and he was also an avid golfer. He was the son in law of the late John Jack' Graham. He is survived by his loving wife, Jeanne M. (Graham), his devoted son, John L. Cannistraro, his parents Louis and Barbara (Parsons) Cannistraro of Waltham, one brother, Peter Cannistraro and his fiancé Anna Bentley of Waltham, two sisters, Lynn Osganian and her husband Paul of Sudbury and Dawn Giovannucci and her husband Mike of Framingham, his mother-in-law, Helen L. Graham of Maynard and many family members and friends. A Funeral Mass will be offered Tuesday at 10 a.m. in Saint Bridgets Church, One Percival Street, Maynard. Burial will be in Saint Bridgets Cemetery, Maynard. Visiting hours are Monday from 2 to 4 and 7 to 9 p.m. in The Joyce Funeral Home, 245 Main Street (Rte. 20), Waltham.