1866 - Born on the 25th of December in Pittsburgh, Pennsylvania.
1888 - He first completed his Master of Arts in Amherst Collage, Massachusetts, U.S.A.
- He studied medicine in College of Physician and Surgeon of New York, U.S.A.
1893 - He returned to the College of Physicians and Surgeons as a instructor of history.
1897 - He served as a clinical pathology instructor in College of Physicians and Surgeons.
1899 - He accepted a professorship in clinical pathology at the Medical College of Cornell University in New York.
1902 - He helped to establish one of the first funds for cancer research.
1908 - He served as a President of the Harvy Society.
1920 - He published his first work on a new kind of malignant osteoma.
1931 - He was elected as a president of Medical Board of the General Memorial Hospital.
1939 - He retired in General Memorial Hospital.
1943 - He died on the 16th of May because of bladder cancer.
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