Super User Omeka MetsExport Plugin The software used to generate this document is called Omeka MetsExport, which operates as a plugin for Omeka. Documentation can be found at http://github/MetsExport/ 3.jpg Hoagland Gates during the later years of his life. This photograph was probably taken during the late 1930’s or early 1940’s when Hoagland was in his early 50’s and already suffering from the advanced stages of tuberculosis.