Weston- Miss Mary E. Sliney of Weston died Saturday March 5, 2005 in her home. She was 99. Born in Waltham, a daughter of the late Jeremiah and Elizabeth (Ahearn) Sliney, she worked for 51 years as a clerk at the Weston Post Office until her retirement. She was a graduate of Weston High School and attended Burdett Business School. A Funeral Mass will be offered on Tuesday at 9 a.m. in Saint Julias Church, 374 Boston Post Road, Weston. Burial will be in Linwood Cemetery, Weston. Arrangements by The Joyce Funeral Home, Waltham.