MARY I. RIGA- March 26th, in Sun City Center, Florida, formerly of Woburn, 90 years of age. Beloved wife of the late Paul Riga. Devoted mother of Paul J. Riga of Woburn, Donna Parker and her husband Melvin of Sun City Center, FL, formerly of Woburn also, and daughter-in-law Patricia Boutwell. Cherished grandmother of Paul J. Riga, Jr., Cynthia Ruggiero, Michael Parker, Brian Parker and his wife Rebecca and Sarah Fawcett and her husband Donald. Great-grandmother to Nicholas, Matthew, Hannah, Tyler, Emmerson and Cullen. Relatives and friends are respectfully invited to attend calling hours Tuesday, June 28th from 11 a.m. – 1 p.m. Interment to follow at Woodbrook Cemetery. Arrangements are under the direction of the Lynch-Cantillon Funeral Home, 263 Main Street, Woburn.