I was doing some resarch to figure out what sorts of songs the Lehr-und-Wehr Verein might have sung when marching or drilling in late 19th century Chicago. It's turned out to be pretty tough to identify "Socialist" songs from the pre-1917 era. Anyway, one is the song (poem?) composed by Georg Herwegh in 1863 as the "Bundeslied f??r den Allgemeinen Deutschen Arbeiterverein" - an anthem for what eventually became the German Social Democratic Party.

I haven't been able to find a recorded version of the words set to the appropriate music for the 19th century. From 1863 to about 1900, it had one setting, and then apparently a much better tune was composed which took over. Here's the post-1900 version: https://www.youtube.com/watch?v=NFy1dPzHnDA

I really like this version.

Anyway, in October of 1886, the eight anarchists convicted in the Haymarket incident were given a chance to speak, and Albert Parsons kicked off his speech with these words:

Toil and pray! The world cries cold; Speed thy prayer, for time is gold At thy door Need's subtle tread; Pray in haste! for time is bread.

This is an English translation of the Herweg song:

Bet und arbeit! ruft die Welt, Bete kurz! denn Zeit ist Geld. An die T??re pocht die Not ??? Bete kurz! denn Zeit ist Brot.

I haven't been able to discover whether Parsons translated it himself, or if that English translation of the song was already around in 1886. I'll keep looking.