The following links provide information about where/how to find drafts of poems we do not yet include on this site.
List of Archival Materials at Houghton Library, Harvard University (scroll down to 1892.5 for a list of drafts of poems)
Additional List of Archival Materials at Houghton Library, Harvard University (scroll down to 1823.5 for poems)
Request Images from Houghton Library, Harvard University