NIMITZ

Set to 2 different clues across 2 published puzzles, most often “W.W. II admiral Chester” — The New York Times, Monday, 1 November 2010.

6 letters

Every clue on record, most used first

W.W. II admiral Chesteronce
The New York Times — Monday, 1 November 2010
Pacific Fleet admiral of W.W. IIonce
The New York Times — Tuesday, 31 December 1996