Dr. Thomas J. Duffield

Roles in Organisations

• LoN Health Section : LoN Member of Section (LoN First Division) (13/4/1923-31/12/1924)   

Residences

• Pennsylvania: United States of America
• Asbury Park: United States of America 1905-1910 (Assistant Health Officer)
• Massachusetts: United States of America 1910-1914 (Student in Sanitary Engineering at the Massachusetts Institute of Technology)
• Summit: New Jersey: United States of America 1914-1917 (Health Officer, Registrar of Vital Statistics, and Secretary of the Board of Health)
• Unspecified 1917 (Twenty-one month's service in the Sanitary Corps of the American army, both as sanitarian and statistician)
• Harvard: United States of America 1918-13/4/1923 (Assistant Professor in Vital Statistics in the New Harvard School of Public Health)