Good Guys and Bad Guys
Pinkerton was always a team player, working with many like minded spies, such as, Timothy Webster, and George Banks. And Greenhow worked mostly alone, except for her share of messengers and bodyguards. Allan Pinkerton lived in friendly territory. He was Union spy and lived in the Union. While Greenhow lived in the north, she was a secessionist, and an overall supporter of the south.
Allan Pinkerton with his company logo
Civil War America
-Billy Pinkerton Brought international recognition to his agency when he found the stlen painting of the Duchess of Devonshire
-Billy also helped Scotland Yard develop fingerprinting
-The FBI today continues to use Pinkerton's methods including, shadowing suspects, and other undercover work
-Pinkerton's Detective Agency was a family business until Pinkerton's great grandson stepped down from his position as CEO in 1967.