Barbara L. (Marchessault) Graham, age 67, died at her home in Billerica, Saturday, April 17, 2010, surrounded by her loving family. She was the beloved wife and best friend of 42 years of Buddy Graham. Born in Cambridge, November 15, 1942, she was the daughter of the late Roderick and Mary (Monihan) Marchessault. Barbara was a receptionist for 25 years with ACSI in Burlington, which later became, Ajilon Software Consulting. She enjoyed going to Las Vegas and traveling with her husband and family. Barbara was a loving wife, wonderful mother, and devoted friend. Besides her husband she is survived by her children, Deborah Martin and her husband Colin of Dracut, Jay Plausky and his wife Carolyn of Chelmsford, Paul Plausky and his wife Cheryl of Chambersburg, PA, Derek Graham of Tewksbury and his fianc� Suzie Paolini, and Danielle Graham of Billerica. She is also survived by 5 loving grandchildren.