George Butterworth (1912) ''Folk Songs from Sussex''
Links to the Song Books page and to Tune Analysis: How To Dissect, Interpret and Categorize Anglo-American, Celtic and English Folk Melodies.
PDF page images of George Butterworth (1912) Folk Songs From Sussex can be freely downloaded from the Internet Archive here.[1]
ABC file of all 100 folk songs: File:Butterworth-1912.abc