Organized according to interview and visit, Vincent talks to various professionals in the field of public health and discusses projects and proposals. As President of the Rockefeller Foundation he steers the focus toward supporting the war effort and making the world a better place through public health funding. The 1919 diary documents Vincent overseeing and getting updates on Rockefeller Foundation projects from various other officers, compiling of a hookworm bibliography, and a trip to the Far East to survey and tour medical education and public health facilities in Asia. He oversees construction of Peking Union Medical College.

Organized according to interview and visit, Vincent talks to various professionals in the field of public health and discusses projects and proposals. As President of the Rockefeller Foundation he is involved in the institutional and administrative duties of the Rockefeller Foundation, International Health Board and China Medical Board. The 1921 diary documents surveying and promotion of medical education in Europe and Asia and the formal opening of Peking Union Medical College.