The text of an article I wrote about Bill Brandt's wartime commissions for the National Buildings Record is now available on the Bill Brandt Archive website. This was originally published in History of Photography in 1993 as 'Bill Brandt's Cathedral Interiors' where it appears with the illustrations. Brandt's task was to document buildings and monuments within them that were likely to be targets for Nazi 'Baedeker' raids. Some of the images bear close similarities to his better known photographs of statues.
Useful Brandt Bibliography from the V and A Museum
Encyclopedia Britannica article on Brandt