Mary Judith (Gilmore) O'Callaghan, 67, of Maynard, formerly of Acton, local real estate agent, died Sunday September 16, 2012 in Littleton. She was born in Philadelphia, Pennsylvania on December 11, 1944 and was raised in Atlantic City, NJ. A long time resident of the Boston, MA metropolitan area, she was a very accomplished real estate agent and contract specialist. She was preceded in death by her parents, Thomas Arthur Gilmore and Mary Tuffy Gilmore and her two brothers James Arthur Gilmore and Robert Michael Gilmore. She is survived in death by her sister Susan Gilmore O'Connor, her two children Stacey Connolly and Dennis O'Callaghan and four grandchildren. Services will be private. Donations in her memory may be made to American Cancer Society, 30 Speen St., Framingham, MA 01701. Arrangements are under the care of Charles W. Dee and Susan M. Dee, Dee Funeral Home of Concord. To share a remembrance in her guest book please visit www.deefuneralhome.com. Service: Services will be private.