Born in Glasgow in 1819 Pinkerton worked for a sort time as the Cook County Deputy Sherriff before in 1849 being the first detective appointed in the Chicago Police department Dempsey, 2010. Pinkerton also went on to investigate
mail thefts as a special U. S. mail agent in 1850 Dempsey, 2010. t was in the early 1850's that
in partnership with Edward Rucker he started up his on private detective agency, located in the North West of the country Dempsey, 2010. After only a year his partner left, at which time the firm was renamed the Pinkerton National Detective Agency, with the tag line 'the eye that never sleeps' Dempsey, 2010.