Ever since the American mania for crossword puzzles began with the publication of the first crossword puzzle book in 1924, many authors have compiled crossword dictionaries as an aid to the harassed solver. I have collected many of these books during the past sixty years, but until recently never tried to infer anything about the sources these authors used from a comparison of their entries with other works.
"A Tale of Two Crossword Dictionaries,"
Word Ways: Vol. 17
, Article 13.
Available at: http://digitalcommons.butler.edu/wordways/vol17/iss3/13