ADA Presidents Album
Doctor Dean, of Chicago, was elected fourteenth president of the Association at the 1874 meeting in Detroit. He had served as recording secretary of the Association since 1869. Doctor Dean practiced dentistry in Canada, Ohio, Michigan and Illinois. He was president of the Illinois State Dental Society, of which he was one of the founders, in 1869, and was twice elected president of the Chicago Dental Society. He was born in Vermont in 1825 and died in 1882.
American Dental Association, "ADA President 1874-1875: Mason Stillman Dean" (1977). ADA Presidents. 30.