Mary Grace Cook of Duarte;Calif.;formerly of Pricedale;died suddenly at 11:30 p.m.Thursday;April 11;1985;in her home. She was 75. Mrs.Cook was born June 15;1909;in Thomas;W.Va.;a daughter of he late James and Susan Newbill. She was a member of th Antioch Baptist Church;Belle Vernon. Surviving are one daughter;Mrs.Juanita Oliver of Duarte;Calif.;eight grandchildren;10 great-grandchildren;two sisters;Mrs.Maggie Jennison and Mrs.Stella Reed;both of Rochester;N.Y.;one brother;Ollie Newbill of Los Angeles;Calif.;and nieces and nephews. Friends will be received in the Howard W.McCrory Funeral Home;Fayette City;Wednesday from 7 to 9 p.m. and Thursday from 2 to 4 and 7 to 9 p.m. Services will be held Friday at 11 a.m. in the Antioch Baptist Church;Belle Vernon;with the Rev.Luther Wormack;pastor;officiating. Burial will be in Belle Vernon Cemetery. The Howard W.McCrory Funeral Home;Fayettte City;is in charge of arrangements.