I love doing Victorian characters and one of my favorite sources of makeup inspiration for that time are the various diseases. Back then cholera, scarlet fever, tuberculosis, and small pox were dreaded infections that were well documented (and therefor easy to find actual photos of the ways the diseases altered the face, either in subtle creepy ways or in hideously marked ways).
If you want a basic dead face, simply do pale makeup (not caked on clown white, but a subtle realistic white) and hollow out the eyes, cheeks, throat, and temples (do not do this with a harsh black; you do not want the bad raccoon look). Then age the mouth and nasal cavities for a realistic gaunt look.
If you have any questions, feel free to let me know. I've taught makeup for years and the Victorian era is one of my specialties.