The photograph of Richard Nixon has a cut out signature "President Nixon" and is mounted on a matboard.  He was a Quaker and his religious faith allowed him an exemption from serving in World War II, but he waived it to enter the Navy. Later, when he was facing impeachment for his role in Watergate, Quakers in Milwaukee and Minneapolis apparently didn’t like the affiliation with the outcast president, petitioning for him to be removed from office months before he resigned.  Also, on December 21, 1970, Nixon greeted one of the more colorful characters to ever enter the White House: Elvis Presley. The singer apparently wanted a badge or other token of law enforcement as the King was high on fighting the war on drugs at the time.  A photo of the meeting between the two was as of 2015 the most requested image in the National Archives, outpacing requests for the moon landing, the Declaration of Independence, or the Bill of Rights.