| We always seek to ask for permission before adding |
| a photo to this site, and we also give credit to the |
| photographer when possible. However, in some rare |
| cases, a historically important photo may be used |
| without permission when the photographer is unknown |
| and can't be reached. Since this is a non-profit site, |
| and the images are for educational and research |
| purposes only, we consider their use here to fall |
| under the "Fair Use" provision under the US Copyright |
| law. Anyone believing that they own the copyright to |
| a photo used on this site, and consider it mis-credited |
| or being used without permission, please contact us |
| for correction or removal. |