Poe died on October 7, 1849.   This link to the Smithsonian provides a great summation of the various prevailing theories as to how Poe died.

http://www.smithsonianmag.com/history/still-mysterious-death-edgar-allan-poe-180952936/?no-ist

This is all, of course, of great interest to me, for this enduring mystery was the genesis of my book’s creation.  That novel reveals the secret behind The Raven’s death…