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Genre Negatives Remove constraint Genre: Negatives Rights No Known Copyright Remove constraint Rights: No Known Copyright Subject Chemists Remove constraint Subject: Chemists Subject Portraits Remove constraint Subject: Portraits

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    • 1950s

    Portrait of Percy Lavon Julian (1899-1975), African American research chemist and pioneer in the chemical synthesis of medicinal drugs from plants.

    Percy Lavon Julian was born in Montgomery, Alabama on April 11, 1899…