While I was browsing in the bookstore the other day, I came across a book in the Shakespeare section called Poor Tom. Since - as the tag says - Edgar is my very best favorite, I picked up the book, expecting it to be on vagrancy or something.
But it is apparently an entire book, by Simon Palfrey, about Edgar! Oh, my heart.
http://press.uchicago.edu/ucp/books/book/chicago/P/bo18241294.html I managed not to buy it then and there…but I did check it out from the university library even though I have no time right now to read it, because what if someone else checked it out first?