¶ Howard Stolpp Bunn, 58, executive vice president of Union Carbide Corp., second largest U.S. chemical company, became president, succeeding Morse G. Dial, 63, who moved up to chairman and continues as chief executive officer. A Philadelphia-born, Lehigh-educated ('20) chemist, Bunn is more salesman than scientist, has been executive vice president since 1955, is Dial's probable successor,
¶ Lewis Gruber, 63, president "since 1956 of P. Lorillard Co. (Old Gold, Kent, Newport), fourth largest U.S. tobacco manufacturer (first nine months' sales: $353 million), moved up to the vacant post of board chairman, but will continue as chief executive officer. Taking his place as president, and most probable successor to head Lorillard when Gruber retires in two years: Harold Francis Temple, 55, vice president and director of sales, who began as a salesman with Lorillard 30 years ago.
¶ P. O. (for Peter Olai) Peterson, 62, resigned as chairman and president of Mack Trucks, Inc. after a four-year tenure in which he more than doubled Mack's sales and successfully weathered the recession (third-quarter sales of $66,352,321 v. $60,759,386 in 1957). Successor: to be named by Dec. 31. <J Hyman Marcus, 44, resigned as chairman of U.S. Hoffman Machinery Corp. only 24 hours after Hoffman President Harold Roth, 47, who will take over the post of chairman, threatened to have him removed. A onetime mathematics teacher who won control of U.S. Hoffman in 1953, Marcus was charged by the Securities & Exchange Commission with manipulating trading in stocks of U.S. Hoffman and Artloom Industries Inc., of which Marcus is also chairman (TIME, Sept. 15), and thereby running up prices.