Indiana University Sheet Music Collection

Here's yet another wonderful online source of vintage sheet music, much of it with ukulele arrangements (chords). A nice feature of the IU site is that you can elect to search for only digitized records, thus saving you from having to scroll through pages of returned records without scanned sheet music images.

Here's a tip, too: do a search on "Singhi" and the results will include all the music with May Singhi Breen uke arrangements. Link