in this FBI file, dated 1922-1923, contain correspondence
from William J. Burns, former Director of Investigation, concerning
a theory that John Wilkes Booth lived many years after his
assassination of President Abraham Lincoln. The file includes
the results of a 1948 examination by the FBI laboratory of
a boot said to be worn by Mr. Booth on the night of the assassination.
In addition, the file includes a 1977 examination of a diary
that belonged to Mr. Booth.