Etherpad may actually hinder more than help writer archeology. Would T.S. Eliot's widow have had access to his drafts and correspondence if they were in Google

Etherpad may actually hinder more than help writer archeology. Would T.S. Eliot's widow have had access to his drafts and correspondence if they were in Google Docs and Gmail, respectively? Or worse, what if they were in the now defunct Etherpad?