In 1940 they succeeded Fred Melville as editors of the National Philatelic Society's journal The Stamp Lover which they edited until 1964.
[3] They edited The Cinderella Philatelist, journal of the Cinderella Stamp Club which they also founded, from 1961,[3] which Norman continued after his brother's death.
Their first book collaboration was The Propaganda Forgeries in 1938, a subject they returned to in 1954 with Forged Stamps of Two World Wars.
[2] In 2000, Norman became a member of the APS Hall of Fame.
[6] Maurice Williams's grandson is the comedian Matt Lucas.