Background
Leonard, Harold Judson was born on November 24, 1887 in in Minneapolis, Minnesota, United States. Son of Leon D. (dentist) and Mary (Judson) L.
Leonard, Harold Judson was born on November 24, 1887 in in Minneapolis, Minnesota, United States. Son of Leon D. (dentist) and Mary (Judson) L.
Doctor ol Dental Surgery, University of Minnesota, 1912, Bachelor of Arts, 1915.
Teacher oral hygiene, oral pathology and periodontology, School of Dentistry University of Minnesota 1913-1926, resigning as assistant professor Research assistant University Hospital, 1913-1915, director School for Dental Nurses, 1917-1926. Chief of Dental Department Students’ Health Service, 1922-1926.
Chief dental service Minneapolis General Hospital, 1920-1921.
Educational director and professor oral pathology, Marquette U. Dental School, 1926-1927. Associate professor dentistry, Columbia University School of Dental and Oral Surgery, 1927, professor, 1928-1947, chairman Division of Oral Diagnosis, 1927-1935, Division of Periodontology, 1936-1947.
Chief dental service Presbyterian Hospital, New York, 1933-1937. Special lecturer Tufts College Dental School, from 1947.
Secretary-treasurer American Board of Periodontology and Advisory Board for Dental Specialities from 1939.
Served as First lieutenant Dental Officers Reserve Corps, 1917-1921. Took part in the Association of Cosmopolitan. Fellow American Academy Periodontology (president 1931-1932), American Association for the Advancement of Science.
Member American Dental Association (member commission on dental practice, 1928-1930, chairman periodontia section 1947-1948).
International Association Dental Research, 9th District Dental Society Sigma Xi. Delta Sigma Delta, Omicron Kappa Upsilon.
Member Scarsdale District Boy Scouts of America, (chairman health and safety committee Fenimore Cooper Council, since 1947).
Married Marion Slater, September 8, 1915. Children: Edwin Slater, Judson Greer, William Francis, Robert Donham.