Caption: "Mr. John D. Rockefeller the 3rd and Dr. J. George Harrar's visit to Mexico, May 21-25, 1967. Names and titles of person's shown (left to right): Dr. E.J. Wellhausen; Ing. Jose Rodriguez Vallejo, Coordinator Chapingo Project; Ing. Ricardo Acosta, Subsecretary of Agriculture; Mr. John D. Rockefeller; Dr. J. George Harrar."
Rockefeller Archive Center, Rockefeller Foundation records, photographs, series 105, box 21, folder 595
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