90, of Pittsburgh, PA, on Wednesday, April 17, 2013. Beloved wife of the late Herbert J. de Marrais; dear daughter of the late James P. and Mildred Loncosky; Loving mother of step-children Patricia de Marrais, Gregory (Kathleen) de Marrais and the late Anthony de Marrais. Sister of Thomas Loncosky , the late Rev. James Loncosky & late Richard Loncosky. Grandmother of Sean and Erin de Marrais. Friends welcome Sunday 1-4 & 6-8pm at William Slater II Funeral Service (412-563-2800) 1650 Greentree Road, Scott Twp. Mass of Christian Burial 10:00am Monday in St. Elizabeth Ann Seton, Carnegie, PA. In lieu of flowers donations requested to Alzheimers Assoc. 1100 Liberty Ave. Suite E 201, Pgh, PA 15222 or Little Sisters of the Poor 1028 Benton Ave, Pgh, PA, 15212