Example image of eyePlorer eyePlorer map for 'Allan Pinkerton': Detective Espionage Pinkerton National Detective Agency Scottish American Glasgow Scotland Glasgow Central Mosque Chartism Cooper (profession) United States Chicago Securitas AB Territorial changes of the United States Abraham Lincoln George B. McClellan Train robbery Union Army Surveillance Undercover American Civil War Baltimore Baltimore Plot United States presidential inauguration Confederate States of America Lafayette C. Baker United States Secret Service Labor unions in the United States Reno Gang Cuba Ten Years' War Federal Bureau of Investigation National Crime Information Center Graceland Cemetery Military Intelligence Hall of Fame Labour movement Agent provocateur La Follette Committee Andrew Carnegie Private investigator Slang Audie Murphy Guy Mitchell NBC Television program Western (genre) Whispering Smith (TV series) Detective fiction Ghostwriter Timothy Webster Aaron Van Camp