Waltham- Miss Frances Dorothy Wellington of Waltham died Wednesday April 21st, 2004 in Newton Wellesley Hospital. She was 81. Born in East Boston, a daughter of the late Henry and Olive (Lloyd) Wellington, she was a resident of Waltham since 1932. She was the sister of the late Margaret M. Hayden She is survived by one sister Ruth E. Wellington of Everett, and several nieces, nephews, grand nieces, grand nephews and cousins. The Funeral Mass will be held Monday at 9 a.m. in Saint Marys Church 133 School Street, Waltham. Burial will be in Calvary Cemetery, Waltham. Visitation prior to the Mass from 7:45 a.m.- 8:30 a.m. in The Joyce Funeral Home, 245 Main Street (Rte.20), Waltham.