The Peekskill Riots surrounded a concert by singer and activist Paul Robeson. His stances on political and civil rights issues and his communist affiliations catalyzed protests that were fueled with an undercurrent of racism and antisemitism.
Research:

Embroidery History Sampler, Part 2
34:22

Embroidery History Sampler, Part 1
36:00

SYMHC Classics: Paul Cuffe
30:49