This joke is actually attributed to Josiah Smith, a nineteenth century comic who was part of the original vaudeville stage act Saturday Night Live, which originated some twenty years after Lincoln's assassination, leading Smith to coin the term, "too soon?"

Although his act is much more known for his hilarious "four score and seven beers ago" speech, this piece of imagery has been making its way around the Internet thanks to a photo of graffiti stenciling. And since we at RetroDuck are pro-memes, here you are, a brand new shirt ready for wear.