Columbia subject headings:
Anarchism--Illinois--Chicago.
Haymarket Square Riot, Chicago, Ill., 1886.
Harvard subject headings:
Anarchism and anarchists--Illinois--Chicago.
Anarchism--Illinois--Chicago.
Anarchists--Illinois--Chicago.
Haymarket Square Riot, Chicago, Ill., 1886
Trials (Anarchy)--Illinois--Chicago.
Princeton subject headings: