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Joseph E. Coleman papers, 1968-1994 (bulk) 1951-1994 (inclusive)

Held at: African American Museum in Philadelphia [Contact Us]

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T. Chalkley Palmer natural science teaching collection, circa 1880-1930

Held at: Delaware County Institute of Science [Contact Us]

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Oliver Wolcott Gibbs papers, 1847-1910 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]