Reinhold and Ruth Benesch photograph at the Science History Institute (source code)

= Reinhold and Ruth Benesch photograph at the Science History Institute
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https://www.sciencehistory.org/education/scientific-biographies/reinhold-benesch-and-ruth-erica-benesch/

The displayed photograph is explicitly captioned Reinhold and Ruth Benesch and credited to the Department of Biochemistry, Columbia University. Verified image link: https://www.sciencehistory.org/wp-content/uploads/2023/04/benesch_reinhold_and_ruth_columbia_univ-640x500.jpg . The linked historical photograph supplies the identity/attribution evidence; the biography's simplified scientific narrative is not used as a technical source.