The 1986 Domesday Project was aundertaken by school-children to commemorate the 900th anniversary of William the Conqueror's 1086 Domesday survey of England. The pages for North Walsham are quite sparse, but Felmingham and Antingham have more information compiled about them.
North Walsham: D-block GB-628000-330000.
Felmingham: D-block GB-624000-327000.
Antingham: D-block GB-624000-330000.