John Wilkes Booth FBI file (неопр.). Federal Bureau of Investigation (17 октября 2006). — «These records contain correspondence dated 1922-23 of William J. Burns, Director of the Federal Bureau of Investigation at the time, concerning a theory that Booth lived many years after the assassination of President Lincoln.» Архивировано 17 октября 2006 года.
John Wilkes Booth FBI file (неопр.). Federal Bureau of Investigation (17 октября 2006). — «These records contain correspondence dated 1922-23 of William J. Burns, Director of the Federal Bureau of Investigation at the time, concerning a theory that Booth lived many years after the assassination of President Lincoln.» Архивировано 17 октября 2006 года.