Reginald Fessenden
Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian-born inventor, who did a majority of his work in the United States and also claimed U.S. citizenship through his American-born father. During his life he received hundreds of patents in various fields, most notably ones related to radio and sonar.
Fessenden Nott Otis
Fessenden Nott Otis (6 March 1825 – c. 1900) was a pioneer in the medical field of urology. He studied art in New York and was a teacher of drawing and perspective before entering medical school. Upon graduating in 1852, he served as ship's surgeon for the Pacific Mail Steamship Company from 1853-59.