Family name Gillmon (Gillmon 
) , around the world, is a very rare last name. The cognomen Gillmon is habitual in the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Gillmon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gillmon | United Kingdom, Nigeria, United States |
| john charles gillmon Assistant Surgeon in Indian Subordinate Medical Department, British Indian Army |
|
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