CAPITALS

Set to 2 different clues across 2 published puzzles, most often “Lincoln and Madison” — The New York Times, Sunday, 31 August 2003.

8 letters

Every clue on record, most used first

Lincoln and Madisononce
The New York Times — Sunday, 31 August 2003
They can be produced by shiftingonce
The New York Times — Saturday, 18 August 2001