Question: 1920's weddings

[saylee.livejournal.com]

I'm doing research for a fic, and find myself up against a brick wall trying to find information on weddings in the 1920s. All my google-fu is turning up are links on planning a flapper-themed wedding, and a few pages on wedding dresses from the period, which while slightly more useful, is not the sort of thing Bertie would notice.

So, does anyone know anything about weddings in the 1920s, especially in Britain, as opposed to America? Traditions we had then that we don't have now, or vice versa? What the reception would be like? Would they do a rehearsal dinner? Would the spongebag trousers Bertie talks about be something worn to all weddings, or only upper class ones? Why doesn't my library seem to have any books on this? Any tidbit is appreciated.

(And don't worry; I promise I'm not marrying off Jeeves or Bertie.)