The Pinkerton Agency: The History of Allan Pinkerton and America’s First Major Private Detective Organization by Charles River Editors English | January 27, 2019 | ISBN: N/A | ASIN: B07N6K4RP7 | 82 pages | EPUB | 2.39 Mb
Pinkerton's Great Detective: The Amazing Life and Times of James McParland [Audiobook] by Beau Riffenburgh English | November 26, 2013 | ASIN: B00GXHLULC, ISBN: 1470392445 | M4B3@64 kbps | 18 hrs 53 mins | 515 MB Narrator: Andrew Garman
Beau Riffenburgh, "Pinkerton's Great Detective: The Amazing Life and Times of James Mcparland" English | 2013 | ISBN: 0670025461, 0143126075 | 384 pages | AZW3 / MOBI | 20.3 MB
David Ricardo Williams, "Call in Pinkerton's: American Detectives at Work for Canada" English | 1998 | ISBN: 1550023063 | 240 pages | AZW3 / EPUB / MOBI | 2.8 MB