I am amused to note Holmes's fanonical birthday, as mentioned in the excellent wikipedia article, is January 6, 1854. Therefore he's nearly exactly 100 years older than our man Rupert.
I have Baring-Gould at home. Must skim it, as well as re-read the stories set in that year. Though I remember "The resident patient" pretty well. The Holmes chronology is so screwy. Pardon me for saying this, because I do love him, but Conan Doyle was such a freakin' hack. Couldn't keep Watson's marriages straight; couldn't keep the location of his war wound straight; couldn't keep his damn middle name straight. The dates I can cope with. We can just pretend that Watson was playing games with dates to obscure identities. But really, that war wound...
Don't want to deep-end on research, though. I think I need to just fling myself into that Holmes-inspecting-Giles scene.