Who worked with w. E.B. Dubois’ niagara movement and was one of the few white cofounders of naacp in 1910?

William English Walling

Explanation:

William English Walling is known for being one of the founders of the NAACP and for his work with W.E.B. DuBois and the Niagara Movement. However, he is  particularly notorious for being a white man descended from Kentucky slaveholders. He was involved in various social and political enterprises, along with his wife Anna Strunsky, a revolutionary Russian Jew.

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