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William M. Ellinghaus

William M. Ellinghaus
Born
William Maurice Ellinghaus

(1922-04-19)April 19, 1922
DiedJanuary 4, 2022(2022-01-04) (aged 99)
OccupationBusiness executive
EmployerAT&T
Spouses
Erlaine Dietrich
(m. 1942; died 2008)
Ruth Kelly Miller
(m. 2010)
Children8

William Maurice Ellinghaus (April 19, 1922 – January 4, 2022) was an American business executive who had served as the president and chief operating officer of the American multinational company AT&T. He was the president of the company during its breakup in the 1980s as a settlement to a United States Department of Justice led antitrust case United States v. AT&T. He also served in New York's Emergency Financial Control Board in the 1970s helping the city through a fiscal crisis and preventing a default.


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