Here’s a set of color photos of Victorian Wales. There may be some use here for people making terrain.
The Victorian Dictionary is an online encyclopedia focusing on Victorian London. Its a great resource for fans of Victorian gaslight horror.
Blue Moon Manufacturing offers its Things That Go Bump In the Night rules for their excellent gothic horror figures. There are rules for various games, including werewolves, vampires, Sleepy Hollow, horror in London and more.
WarpSpawn has created a card game called Victorian Villains, which features such period luminaries as Sherlock Holmes, Tarzan, James West, Professor Moriarty, Count Dracula, Rasputin and Jack The Ripper. Its obviously not a miniatures game, but fans of the genre might find it interesting.
Update: To clear up any confusion, there are no pdf files fo the actual cards. Like all of Lloyd’s marvelous games, there is simply a list of cards. You have to make your own set out of playing cards, or old ccg cards. I put stickey labels on playing cards and use them.