What is William M. Ellinghaus?
'''William Maurice Ellinghaus''' (April 19, 1922{{spnd}}January 4, 2022) was an American business executive. He was the president and chief operating officer of the American multinational company [[AT&T]] from 1979 until 1984. He was the president of the company during its [[Breakup of the Bell System|breakup]] in the 1980s. He was born in [[Baltimore, Maryland]]. Ellinghaus died on January 4, 2022 in [[Bronxville, New York]] at the age of 99.<ref>{{Cite news|last=McFadden|first=Robert D.|date=2022-01-05|title=William M. Ellinghaus Dies at 99; Presided Over AT&T Breakup|language=en-US|work=The New York Times|url=https://www.nytimes.com/2022/01/05/business/william-m-ellinghaus-dead.html|access-date=2022-01-06|issn=0362-4331}}</ref> ==References== {{reflist}} {{DEFAULTSORT:Ellinghaus, William M.}} [[Category:1922 births]] [[Category:2022 deaths]] [[Category:Businesspeople from Baltimore]] {{US-bio-stub}}