Letters, memoranda, telegrams, invoices, receipts, printed reports and other items which document the financial, philanthropic, and personal interests of Benjamin and his family. Includes Duke family members: Sarah P. Duke, Washington Duke, Angier Buchanan Duke, Mary Duke Biddle, Lida Duke Angier, Brodie L. Duke, James B. Duke, and Anthony Joseph Drexel Biddle, Jr. Other correspondents include: John C. Angier, John S. Bassett, Warren A. Candler, Julian S. Carr, John F. Crowell, J. B. Cobb, Warren C. Coleman, Ceasar Cone, William A. Erwin, William P. Few, Robert L. Flowers, C. P. H. Gilbert, Jonathan R. Hawkins, L. L. Hobbs, Charles C. Hook, N. M. Jurney, J. C. Kilgo, W. S. Lee, John Merrick, Solomon Pool, Jeter C. Pritchard, Daniel Lindsay Russell, Thomas Settle, James E. Shepard, James H. Southgate, Andrew P. Tyer, and George W. Watts. Many of the letters were addressed to or written by Benjamin's personal secretaries and business agents in Durham and NY, including James E. Stagg, Richard B. Arrington, Elizabeth A. Childs, and Alexander H. Sands, Jr.