Denmark has issued stamps since 1851. The first person to be featured on a Danish stamp was King Christian IX. The years appearing after each name refer to when that person was first featured on a stamp.
... (+ 1990)
March 23 - Joan Crawford, actress
March 26 - Joseph Campbell, author and expert on mythology
March 28 - Werner Bahlsen[?], biscuit[?] producer (+ 1985)
...