This book was also mentioned as a source for the episode.
"
i Joe nickel detective uncovering the mysteries of a word uh Alan picherton at the american biography
— Episode: 625 - The Pinkerton Agency - Part 2 of 2
Episode: 625 - The Pinkerton Agency - Part 2 of 2
This book was also mentioned as a source for the episode.
"
i Joe nickel detective uncovering the mysteries of a word uh Alan picherton at the american biography