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Sienkiewicz, J. M.
Civic leader. Born in Poland, A well-known leader among Poles in Chicago, For many years president of the Young Men's Alliance, member and later president of the Central Board of the Committee for National Defense; manager of the Polish National Alliance publications. Died in Chicago, 1932.

From: "Who's Who in Polish America" by Rev. Francis Bolek, Editor-in-Chief; Harbinger House, New York, 1943

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