[3] He then studied bacteriology and pathology at universities in Berlin, Vienna, Leipzig, Prague and Paris from 1888 to 1895.

[5] After serving under Dr. Howard A. Kelly, he was appointed as chief of Obstetrics at the Johns Hopkins Hospital.

[2] In 1923, Williams resigned to resume research in obstetrics and direct a women's clinic at the hospital.

[5] In 1931, Williams was active in efforts to repeal the federal law forbidding sending birth control information through the mail.

[6] He died on October 21, 1931, at Johns Hopkins Hospital from complications following an abdominal surgery performed by his colleague J. M. T.