Maybe others on PGWnet are already aware of this, but a couple of vocal scores of
Wodehouse-Kern musicals are available in PDF at the Internet Archive:

Have a Heart
http://www.archive.org/details/haveheartvocalsc00kern

Oh, Lady! Lady!
http://www.archive.org/details/ohladylady00kernj

Arthur Robinson, Reference Librarian
Banks Library, LaGrange College
LaGrange, Georgia 30240
USA