Waltham - Mr. Marc A. Calleva, of Waltham, died Wednesday, November 7, 2007 in his home. He was 41. Born in Newton, a son of Nancy J. (White) Calleva of Waltham, and Anthony Calleva of North Billerica, and step-son of Evelyn M. Calleva also of North Billerica, Marc had been a health care worker for twenty-five years at the Walter E. Fernald School in Waltham. He was a 1983 graduate of Waltham High School, attended Boston University and the University of Massachusetts. Marc enjoyed music, playing his guitar, photography, and he was an expert with computers. He especially loved being around family and friends and was very devoted to his nieces and nephews. In addition to his parents and step-mother, Marc leaves his wife, Pamela Fryer; his loving step-children, Justin, Adam, Christopher, Benjamin, and Kyle, two brothers, Christopher S. Calleva and his wife, Linda, of Waltham and Anthony Calleva and his wife, Kim, of Clinton; one step-brother John Saia Jr, one step-sister Jeanine Saia; and Marc was the devoted uncle to Christopher, Jr., Anthony, III, Brieanna, and Nicholas. He also leaves many aunts, uncles and cousins. Reltives and friends are invited to attend Funeral Services on Wednesday at 10:00 a.m. in The Joyce Funeral Home, 245 Main Street (Rte.20), Waltham. Burial will be in Mount Feake Cemetery, Waltham. Visiting hours will be held on Tuesday from 4 to 8 p.m. Memorial donations may be made to the Juvenile Diabetes Research Foundation, New England Chapter, 20 Walnut Street, #318, Wellesley Hills, MA 02481.