Samaras: I am trying to track down Edward de Vere’s particulars: i.e., did he marry, did he leave heirs, who were his friends, how was he educated? Mark Alexander has an article on his website. The details that would most help me are not mentioned. I have been fascinated with the authorship question for a long time. I am trying to pinpoint the various ways in which Edward Oxenford’s papers may have been dispersed and then possibly reabsorbed and catalogued by antiquarians / collectors.
Hughes: You should read Mark Anderson’s book: Shakespeare by Another Name. This will give all the facts as we know them as of 2005. I have quite a bit of information here as well. Just type a keyword into the search field in the upper right corner of this page. Another useful website is Nina Green’s The Oxford Authorship Site.
Such research is always welcome, and will probably turn up something of value, though maybe not exactly what you’re hoping to find. My guess is that the deal his patrons made with the relatives of the various Court personalities satirized in the plays was that, as soon as the plays and poems were published, all the original papers would be destroyed. But even if this is what happened, there’s always the possibility that they missed something. There may well be many another Northumberland Manuscript lurking in family archives and the basement of the PRO.
Good luck, and let us know what you find.