R. Robert Tyson '42, elected president and CEO of Blue Shield of Pennsylvania.
Stanley H. Feldberg '46, re-elected to the board of trustees of Brandeis University for a fourth five-year term.
Scott L. Probasco Jr. '50, elected a director of Holly Farms Corp.
John Higley '51, appointed executive vice president and chief operating officer of Granite Savings Bank and Trust Co.
F. Alan Smith '52, named executive vice president, operating staffs and public affairs of General Motors.
Douglas W. Dodge '54, elected chairman of the board of trustees of Goucher College.
Edward S. Horton '54, M.D., professor of medicine and chairman of the Department of Medicine at the University of Vermont, elected vice president of the American Diabetes Association.
William C. Pryor '54, chief judge of the District of Columbia Court of Appeals, recipient of the Judicial excellence Award of the Trial Lawyers Association of Washington, D.C.
Richard Roth '58, named a senior vice president of Ogilvy & Mather.
John A. Dimling '60, appointed executive vice president and group director of marketing of Nielsen Media Research.
Nitya Pibulsonggram '62, posted as Thailand's ambassador to the United Nations.
Stephen A. Duzan '63, named chairman of Immunex Corp.
Dennis M. Kratz '63, elected president of the American Literary Translators Association.
Peter K. Thomsen '64, appointed president and a director of Michigan National Bank.
John G. Robison '66, named president of Coverbind Corporation.
George R. Trumbull '66, named president of Cigna Corp.'s investment group.
Glenn A. Britt '71, named chief financial officer of Time Inc.
Reggie Williams '76, appointed to the city council of Cincinnati.