 The bricks used to build Waddesdon Manor had to be shipped by road from Poore's to Brill or along the Aylesbury and Buckingham Railway from further afield before being sent down the Tramway to the site, implying there was no works capable of making high numbers of bricks along the Tramway.Brill Brick and Tile Works could not compete with the larger and better-connected brickworks at Calvert and declined.The brickworks finally closed in the early 20th century.