Mary Ann Cahill Hartnett passed from this earth to the arms of the Lord on March 6th, 2018. Her illness was severe but quick. She is preceded in death by her husband of 63 years, William Hartnett. She also raised and buried 3 sons with hydrocephalus, Gerrieboy (5/59-3/71), Jim (10/60-11/77), and Billy (7/11-7/24). She was surrounded by family at her death and leaves behind her daughter Margie Hartnett, son Dean Hartnett, and also her brother John Cahill and his wife Penny and family, sister, Helen Cain and her family, sister, Josephee and husband Bud and their family. Lastly, Mary Cahill and her family and extensive cousins, nieces, and nephews. On the Hartnett’s side are many, not the least being Jim and Emily Hartnett and their family who have remained close and loving friends throughout her life. She had a deep sense of faith and took her love for God and the Catholic Church very seriously. Her service work is known long and wide, but she was quiet about it and felt it was her duty. She had an engaging personality and generous heart. A visitation for Mary Ann Hartnett will be held on March 8th from 6 to 8pm with Rosary at 7pm, at Sparkman-Crane Funeral Home, 10501 Garland Rd, Dallas Texas, 75218. Her Funeral Service will be held March 9th at 10am, at Saint Bernard of Clairvaux Catholic Church, 1404 Old Gate Lane, Dallas, Texas 75218. Mary Ann Hartnett will be laid to rest on March 10th at 10am at Calvary Hill Cemetery, 3235 Lombardy Lane, Dallas, Texas 75220.