When did John W. Dunn - animator die?

There is no widely known animator named "John W. Dunn" with a confirmed date of death. It's possible there was an animator with that name who worked in a more niche field or was less famous.

If you have more information about John W. Dunn, such as the type of animation he worked on, the studio he worked at, or any specific movies he might have worked on, I could potentially help you find more information.