Mary Elizabeth Silveira, “Sis” 84, of Washington, D.C. passed away on Friday, September 18, 2015 at her home. Born in Newport, she was a daughter of the late Manuel and Mary (Rodrigues) Silveira. Mary was a school teacher and taught first grade for the Montgomery County School Department for 40 years before she retired. She leaves one sister, Dorothy A. Lear of Maryland, one brother, Joseph M. Silveira of Barrington, four nieces, two nephews and several great nieces and nephews. Her funeral will be held on Thursday at 8:45 AM from the PERRY-MCSTAY FUNERAL HOME, 2555 Pawtucket Avenue, East Providence with a Mass of Christian Burial at 10:00 AM in Saint Luke’s Church, Washington Road, Barrington. Burial will be in Gate of Heaven Cemetery. Calling hours Wednesday 5-8.