Dr. Evans wasn't the only Philadelphia dentist to treat royalty...
Dr. Yasu Nakamura graduated from the Pennsylvania College of Dental Surgery* in 1897 and went on to care for "royal teeth" after receiving an appointment from Japan's Imperial Family.
*The Pennsylvania College of Dental Surgery (PCDS) would eventually merge with the University of Pennsylvania in 1909.
In 1872, PCDS became the first dental school to admit women. -America's Lost Colleges
*University of Pennsylvania. School of Dentistry., Thomas W. Evans Museum and Dental Institute. Announcements. Philadelphia: The University. 1922/1923