[5][6] His early education was in Tours and Paris in France, and Marburg, Germany before graduating from Yale University in 1887.

[1] Following his graduation from Medical School, he did a year of post-graduate work in Vienna and Edinburgh, Scotland.

He was also a professor of Clinical Surgery at the Post-Graduate Hospital (today known as the New York University School of Medicine).

[1] On April 25, 1905, Hawkes was married to suffragette Alice Silliman Belknap (1878–1972),[11] in Louisville, Kentucky.

[13] Together, they lived at 124 East 65th Street and were the parents of a son and a daughter:[7] Hawkes died at his summer home, Briar Patch at Sands Point in Port Washington on Long Island,[14] on August 24, 1940.