Rebel Voices: An I.W.W. Anthology edited by Joyce L. Kornbluh, University of Michigan Press,1964, 1968 (my edition is second printing, 1972). We got it as a permanent loan from a fellow we met on an Amtrak train in 1983. It's a treasured part of the library. Have no idea about its availablility these days. By the way, the different editions of The Little Red Songbook have different songs in them, so you may need a few.

Bat Goddess