However, his interests in United States postage stamps were more widespread and included classic postal issues.
He was a founding member of the American Revenue Association and was also president of the Booklet Pane Society.
Morton Joyce acquired the Butler and Carpenter letter books and made them available to philatelic researchers, and, in his will, he bequeathed them to the Smithsonian Institution, in Washington, D.C. Joyce wrote numerous articles on the results of his studies of United States revenue stamps.
Another book, entitled Collector's handbook for private die proprietary proofs and census of the Morton Dean Joyce Collection of these issues was published by Richard Friedberg.
Joyce was recognized with numerous major philatelic awards, including the Hopkinson Trophy in 1957.