Waltham Mr. Richard L. Doucet of Waltham died Tuesday, August 17, 2004 at the Marquardt Nursing Center at the Fernald Center in Waltham. He was 68. The son of Rose (Saulnier) Doucet and the late Louis J. Doucet, he was a lifelong resident of Waltham. Mr. Doucet leaves his sister, Mary F. Law and her husband Albert, of Shrewsbury and two nieces, Tracy and Kathryn Law. Relatives and friends are invited to attend the Funeral at 10:15 a.m. Thursday from The Joyce Funeral Home, 245 Main Street (Rte. 20), Waltham followed by a Funeral Mass in the Chapel of the Holy Innocents at the Fernald Center, 200 Trapelo Road, Waltham at 10:30 a.m. Burial will be in Mount Feake Cemetery, Waltham. Visitation will be held at the Funeral Home prior to the Funeral Mass from 9:30 to 10:15 a.m. Memorial donations may be made to the Fernald Association, c/o Marquardt Nursing Center, 200 Trapelo Road, Waltham, MA 02452.