Sonja Jean Koschalk;61;of 412 Third St.;Monessen;died Wednesday;Feb.10;1999;in the Westmoreland Regional Hospital;Greensburg. She was born Feb.18;1937;in Belle Vernon;a daughter of Mrs.Stella Koschalk;who survives;and the late Andrew Koschalk. In addition to her father;she was also preceded in death by Charles E.Emerick and Harry pakish. Survivors;in addition to her mother;include one daughter;Deborah Berlin of Jeannette;four sons and three daughters-in-law;David W.and Barbara Koschalk of Elco;Paul E.and Donna Koschalk of Monessen;and Duwane and Mary Koschalk of Monessen and Charles E.Koschalk of Monessen;nine grandchildren;Shawn Koschalk;Joe Palmer;Heather;Amanda and Courtney Koschalk;Crystal and Samantha Koschalk;Stephanie Berlin and Michele Youngbaur;one sister;Shirley Matrozzo of Belle Vernon;and two brothers;Phillip Koschalk of Belle Vernon and Ed Koschalk of Spokane;Wash. Friends will be received at the Rhome Funeral Home Inc.;1209 Grand Blvd.;Monessen;on Sunday from 2 to 4 and 7 to 9 p.m. Services will be held in the chapel of the funeral home on Monday at 1 p.m.;with the Rev.Thomas E.Senge and Rev.J.E.Mitchell officiating. Interment will be at the convenience of the family in Belle Vernon Cemetery. The Rhome Funeral Home Inc.is in charge of arrangements.