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LeRoy M. Ennis collection of Japanese dentistry material


Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]3420 Walnut Street, Philadelphia, PA 19104-6206

This is a finding aid. It is a description of archival material held at the University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts. Unless otherwise noted, the materials described below are physically available in their reading room, and not digitally available through the web.

Overview and metadata sections

LeRoy M. (Massey) Ennis, born on January 9, 1893 in West Chester, Pennsylvania, earned his education at the Thomas W. Evans Museum and Dental Institute School of Dentistry at the University of Pennsylvania in 1916. After his graduation, he began his work with Penn's School of Dentistry and continued there throughout his career; serving as instructor in oral surgery (1917 and 1919), instructor of roentgenology (1919-1930), assistant professor of roentgenology (1930-1943), and professor of oral roentgenology (beginning in 1943). He also served as professor and director of oral roentgenology at the Graduate School of Medicine, also at the University of Pennsylvania. He was named emeritus professor in 1963.

In June, 1917, Ennis was commissioned in the United States Army Dental Corps of the First Division and served in France, "largely in the trenches at the front line," (Manson-Hing). He served as a captain in the Army Reserves until 1934; and then served as a lieutenant commander in the Naval Reserves from 1934 to 1945. In 1952, he was serving as a consultant radiologist to the Army, the Navy, and the Veterans Administration.

Active in professional organizations, Ennis served as president of the Philadelphia County Dental Society; president of the Pennsylvania State Dental Society; secretary of the American Academy of Oral Roentgenology (of which he was a founder); and president of the American Dental Association. According to Manson-Hing, he also lectured internationally, in Canada, Mexico, Holland, Japan, Egypt, Burma, England, Guatemala, Chile, Venezuela, and Ecuador; served as a member of the Ivory Cross Expedition in the Netherlands (1946); and served as a member of the United States Commission on Dentistry to Japan (1951). Following his retirement in 1963, Ennis worked to raise funds for Project HOPE by serving aboard the S.S. Hope in Ecuador and Nicaragua, as well as lecturing about the work of health care workers who provide care in their communities and respond to urgent health crises through the organization.

Ennis died on February 28, 1975.

Works consulted:

Manson-Hing, Lincoln R. "LeRoy M. Ennis (1893 to 1978)," American Academy of Dental Radiology, Volume 46, Number 2, 1978 August, pages 307-309.

"Official Call," Journal of the American Dental Association, Volume 45, 1952, page 52.

This collection documents the state of Japanese dentistry in the 1930s to 1951 as presented to the United States Commission on Dentistry to Japan during their trip in 1951. According to Manson-Hing, the Commission was "charged with examining and reporting on the condition of dental education and practice in that country," (Manson-Hing, p. 308).

A photograph album was created by the Osaka Dental College and presented to LeRoy M. Ennis. The photographs include images of Junichiro Iizuka, president of the Osaka Dental College; buildings on campus; classrooms and laboratories on campus; and the Dental Hospital with patient spaces (waiting room and clinic), as well as dental student and dentist spaces (laboratories, operating rooms, lecture halls, and clinic). At the end of the volume, there are photographs of specimens and tools. There is also one loose scrapbook page (that was not part of the photograph album) with two photographs that appear to be of school children and dentists.

The collection also contains publications relating to dentistry in Japan, dating from 1932 to 1951. It is probable that many of these publications were used by Ennis as research prior to his trip and they discuss dental education, dental care for school children, dental practices, and dental research. At least one publication was created specifically for the Commission's visit to Japan, "Osaka Dental College: Special Report," (box 1, folder 3) and more than a dozen were created in the years just before the visit.

Gift of LeRoy M. Ennis, 1952; Transferred from the University of Pennsylvania School of Dental Medicine, 2015.

University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts
Finding Aid Author
Holly Mengel
Finding Aid Date
2024 January 31
Access Restrictions

This collection is open for research use.

Use Restrictions

Copyright restrictions may exist. For most library holdings, the Trustees of the University of Pennsylvania do not hold copyright. It is the responsibility of the requester to seek permission from the holder of the copyright to reproduce material from the Kislak Center for Special Collections, Rare Books and Manuscripts.

Collection Inventory

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Photograph album presented to Dr. LeRoy M. Ennis as a member of the U.S. Dental Commission by the Osaka Dental College, Osaka, Japan, 1951.
Box 2 Folder 1
Photographs of children being examined by dentists, circa 1951.
Box 2 Folder 2
"Regulations for Functions of School Dentist," Cabinet Order 2, 1932.
Box 2 Folder 2
"Handbook on Elementary School Health Program," by the Ministry of Education, 1949.
Box 2 Folder 2
"Explanatory Note concerning History, Circumstances of Founding, Nature of Business, Researches, etc. of the Government Hygienic Laboratory", 1949 June 20.
Box 2 Folder 2
"Regulations for Dental Care by Dentists under Health Insurance," Ministry of Welfare Notification, 1950.
Box 2 Folder 2
"Prevailing Status of Dental Hygiene for Schools in Tochigi Prefecture," Tochigi Prefectural Government, circa 1951.
Box 2 Folder 2
"Ordinance for School Dentist and Kindergarten Dentist," Law No. 144, 1951 June 23.
Box 2 Folder 2
"Tables of Examination in the Present Status of Tokyo Medical and Dental University", 1951 June 30.
Box 2 Folder 2
"Activities on School Dentistry of the Japan School Hygiene Association," by Taku Iwahara, chief director of Japan School Hygiene Association, 1951 July 10.
Box 2 Folder 2
"Research concerning Prevention of Caries of Teeth by Applying Sodium Fluoride to Teeth," by Medical Section of Japan School Hygiene Association, Health Section, Elementary and Secondary Education Bureau, Ministry of Education, undated.
Box 2 Folder 2
"History of Examination and Investigation of Dental Materials by the National Hygienic Laboratory," by Masamichi Fujii, undated.
Box 2 Folder 2
"Principal Members of National Hygienic Laboratory", undated.
Box 2 Folder 2
Kyushu Dental College description, undated.
Box 2 Folder 2
"List of Points for Medical Treatment Fees of the Social Insurance", undated.
Box 2 Folder 2
Japan Specialized Medical School for Dentistry (in Japanese), 1934 July.
Box 1 Folder 1
"Nippon Dental College Founding, selected photographs", 1936 July 1-3.
Box 1 Folder 1
"Directives Concerning the Carrying Out of the Health Plan in Grammar Schools," Ministry of Education (in Japanese), 1950.
Box 1 Folder 2
"Progress of Education Reform in Japan," report by Japan Ministry of Education, 1950.
Box 1 Folder 2
Report by Ministry of Education (in Japanese), 1950.
Box 1 Folder 2
"Osaka Dental College: Special Report," created for the mission of the American Dental Association", 1951 June.
Box 1 Folder 3
"Laboratory and Clinical Works in Osaka Medical College", circa 1951.
Box 1 Folder 3
Short Term University (Night Class), by the Ministry of Education (in Japanese), 1951.
Box 1 Folder 4
Outline of the Activities of Public Health Bureau, by Metropolitan Tokyo (in Japanese), 1951 March 1.
Box 1 Folder 4
"Data concerning Dental Sanitation," by Medical Affairs Bureau, Ministry of Public Health and Welfare, 1951 July.
Box 1 Folder 4
"Plans of Buildings," by Dental Department of Tokyo Medical and Dental University, 1951 July.
Box 1 Folder 5

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