Prayer service will be held Friday;Feb.29;1980;at 9:30 a.m.at the Shelby D.Ferguson Funeral Home;700 Broad Ave.;Belle Vernon;for Silla Valdiserri;81;of 500 Broad Ave.;Belle Vernon;who died Wednesday;Feb.27;1980;in Monongahela Valley Hospital. The Prayer services will be followed by Mass of Christian Burial at 10 a.m.at St.Sebastian Catholic Church in Belle Vernon. Interment will be in Belle Vernon Cemetery. Friends are being received in the funeral home Thursday from 2 to 4 and 7 to 9 p.m.