John A. Gronouski replaced J. Edward Day as Postmaster General on September 30, 1963 and held the position until 1965. Gronouski is well known for expanding the zip code system, instituting a vertically organized and improved mail delivery system, and reclassifying first class mail as priority class. Following his tenure as Postmaster General, Mr. Gronouski served as United States Ambassador to Poland from 1965 to 1968.
1919 Born, Dunbar, Wisconsin
1942 B.A. University of Wisconsin
1942-1945 Navigator, Eighth Air Force
1947 M.A., University of Wisconsin
1955 Ph.D., University of Wisconsin
1959 Research Director, Wisconsin Department of Taxation
1959 Executive Director, Revenue Survey Commission
1960 Wisconsin State Commissioner of Taxation
1963-1965 Postmaster General
1965-1968 Ambassador to Poland
1996 Died
Source:
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