Schuyler C.(Jack) Marshall;83;of California;Pa.;died peacefully with his children at his side on Saturday;May 13;2000. He was born Nov.2;1916;in Warren;Pa.;a son of the late Schuyler and Florence (Watchorn) Marshall. He was a retired professor of U.S.and Constitutional history at California University of Pennsylvania. During hie lifetime;Jack also worked as an usher at Forbes Field;taught at Langley High School and the University of Pittsburgh. He was a veteran of World War II;and a lifelong member of the American Chess Federation. In addition to his parents;he was preceded in death by three sisters;and in 1991;by his wife of 49 years;Doris Rosseau Marshall. Survivors include his children;Alice M.Cook and husband;David;of Glen Dale;W.Va.and Carl E.Marshall and wife Christy;with whom he made his home;and seven grandchildren;Steven;Andrea and Suzanne Cook;Catie;Doris;Schuyler and Arthur Marshall. A memorial service will be held on Friday;May 19;2000;at 11 a.m.at the United Christian Church;Malden Crossroads;California;Pa. In lieu of flowers;the family requests memorial donations be made to the United Christian Church building fund;P.O.Box 532;California;Pa.;15419 or the California University of Pennsylvania Library.