Volume kept by Dr. John Warren (1753-1815) containing of daybook entries from 1781 to 1783 that record fees charged to patients by Warren for medical services. There is also list of women whose childern were delivered by Warren and a few personal accounts.

John Warren (1753-1815), A.B., honorary M.D., Harvard College, Cambridge, Massachusetts, was a physician and founder of Harvard Medical School in 1782. After graduating Harvard in 1771, he studied medicine with his brother Joseph Warren (1741-1775) and with Edward Augustus Holyoke (1728-1829) in Salem, Massachusetts. After the outbreak of the American Revolutionary War, Warren served as a surgeon in the Continental Army. In 1780, Warren delivered a private course of anatomical lectures on human dissection to colleagues. A second series, sponsored by the Boston Medical Society during the autumn and winter of 1781, drew some Harvard College students, as did a third. As a result, the president of Harvard asked Warren to organize a plan of medical study. He was thereafter appointed professor of anatomy and surgery at Harvard, becoming the first member of the medical school faculty in 1782. From 1791 until his death, he held a position as Hersey Professor of Anatomy and Surgery at Harvard Medical School, and throughout his career was associated with the school and with Massachusetts General Hospital. Warren was also one of the founders of the Massachusetts Medical Society (1781) and belonged to the American Academy of Arts and Sciences and the Humane Society of Massachusetts.