Paul Robeson with freedom fighters at the Madrid battlefront. Sometimes under artillery and machine-gun fire, Robeson visited the shifting battlefronts to bolster the fighting spirit of the Republicans and their communist allies with his songs.
“Robeson, Paul,” University of Michigan Library Digital Collections, accessed from https://quod.lib.umich.edu/s/scl/x-lpf.0966/lpf0966, 10 January 2022.