1853 - 1918
John Ross Callahan American Dentist
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John Ross Callahan is a member of the following lists: American dentists, 1918 deaths and 1853 births.
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Details
| First Name |
John
|
| Middle Name |
Ross
|
| Last Name |
Callahan
|
| Birthday |
30th November, 1852
|
| Birthplace |
Hillsboro, Ohio, United States
|
| Died |
12th January, 1918
|
| Nationality |
American
|
| Occupation |
Dentist
|
John R. Callahan (1853 – February 12, 1918) was a pioneer in the field of dentistry and particularly dental research in the late 19th and early 20th centuries.
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