After participating in the Hassler expedition to the West Indies, he became a respected surgeon, teacher and author at the University of Pennsylvania Hospital, with which he was associated from 1874 to 1916.
Shortly after graduation he became a member of the staff gathered by Professor Louis Agassiz for the Hassler expedition to the West Indies, the Straits of Magellan and both coasts of South America.
After his return to Philadelphia he began practice, became eminent as a surgeon, and during his entire after life was a teacher and writer in surgery.
[4] During World War I, Dr. White served at the American Hospital in Paris, as part of a unit from the University of Pennsylvania Medical School.
[4] Once, in September 1880, he swam from Newport to the Narragansett Pier, Rhode Island, making ten miles in five hours and forty minutes in a cold rough sea.