Through the artistry of colorists Jordan Lloyd and Mads Madsen, a number of stunning images of US Civil War era figures - including this one of (time-traveling Brooklyn hipster?) Lewis Powell, who conspired with John Wilkes Booth to assassinate President Abraham Lincoln - are now available online.
According to the October 6th 2013 Daily Mail - Powell's "job was to kill Secretary of State William H. Seward, a job at which he failed."
Here's a (strangely contemporary feeling?) shot of Mark Twain: