Edgar Allan Poe was an important vampire-hunting ally in the Abraham Lincoln: Vampire Hunter (2012) source novel, but does not appear in the film. This short cartoon therefore functions as a "deleted scene" for book purists. There is no historical reason to think that Edgar Allan Poe and Abraham Lincoln ever met.
Clifton Collins Jr. (Poe) and Mary Elizabeth Winstead (Mary Todd in the main Abraham Lincoln: Vampire Hunter (2012) film) both appeared in Scott Pilgrim vs. the World (2010).
Included as an extra on the bluray release of Abraham Lincoln: Vampire Hunter (2012).