While I am not particularly knowledgeable about Broadway musicals, I found this site while researching one of Wolfe’s selections (from The Three Twins) with which I wasn’t familiar, and I think that it might be a useful resource to our members and guests.
If nothing else, it provides information on productions that ended in the early 1900s, although I’m not qualified to attest to how comprehensive their database is.
— MordEth