Crossword puzzle clue "who's on first notably"

"Who's On First?," notably

First word across in the first-ever crossword (1913) and the first of a dozen appearances of the word in this puzzle's grid, written word search-style (left, right, down, and diagonally) ... Can you f

TripTik, notably

Evangeline, notably

Eddie Rickenbacker, notably

Pete Sampras, notably