![Heliotype portrait of Irish-born American police officer Inspector Thomas Byrnes (1842 - 1910), 1886. Negative by Anderson, N.Y., Heliotype Printing Company, Boston Stock Photo - Alamy Heliotype portrait of Irish-born American police officer Inspector Thomas Byrnes (1842 - 1910), 1886. Negative by Anderson, N.Y., Heliotype Printing Company, Boston Stock Photo - Alamy](https://c8.alamy.com/comp/2M0NJ7N/heliotype-portrait-of-irish-born-american-police-officer-inspector-thomas-byrnes-1842-1910-1886-negative-by-anderson-ny-heliotype-printing-company-boston-2M0NJ7N.jpg)
Heliotype portrait of Irish-born American police officer Inspector Thomas Byrnes (1842 - 1910), 1886. Negative by Anderson, N.Y., Heliotype Printing Company, Boston Stock Photo - Alamy
![Geri Walton on Twitter: "Inspector Thomas Byrnes: 19th-century American Policeman - Inspector Thomas Byrnes was an Irish-born American police officer who served as head of the New York City Police Department from Geri Walton on Twitter: "Inspector Thomas Byrnes: 19th-century American Policeman - Inspector Thomas Byrnes was an Irish-born American police officer who served as head of the New York City Police Department from](https://pbs.twimg.com/media/EE1fgAcWwAAWfwF.jpg)
Geri Walton on Twitter: "Inspector Thomas Byrnes: 19th-century American Policeman - Inspector Thomas Byrnes was an Irish-born American police officer who served as head of the New York City Police Department from
![Amazon.com: Thomas Byrnes (1842-1910) Nchief Inspector Of The New York City Police Department 1880-1895 Engraving American 1889 Poster Print by (24 x 36): Posters & Prints Amazon.com: Thomas Byrnes (1842-1910) Nchief Inspector Of The New York City Police Department 1880-1895 Engraving American 1889 Poster Print by (24 x 36): Posters & Prints](https://m.media-amazon.com/images/I/71cehKlfUvL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Thomas Byrnes (1842-1910) Nchief Inspector Of The New York City Police Department 1880-1895 Engraving American 1889 Poster Print by (24 x 36): Posters & Prints
![NYPD NEWS on Twitter: "Congratulations Det. Thomas Byrnes from @NYPDMTS for being the first of NYPD and @FDNY to cross the @nycmarathon finish line! 🏆 🏅 https://t.co/sLjE61i1iN" / Twitter NYPD NEWS on Twitter: "Congratulations Det. Thomas Byrnes from @NYPDMTS for being the first of NYPD and @FDNY to cross the @nycmarathon finish line! 🏆 🏅 https://t.co/sLjE61i1iN" / Twitter](https://pbs.twimg.com/media/EId1PLsW4AA_maQ.jpg)
NYPD NEWS on Twitter: "Congratulations Det. Thomas Byrnes from @NYPDMTS for being the first of NYPD and @FDNY to cross the @nycmarathon finish line! 🏆 🏅 https://t.co/sLjE61i1iN" / Twitter
![New York Exposed: The Gilded Age Police Scandal that Launched the Progressive Era - Harvard Book Store New York Exposed: The Gilded Age Police Scandal that Launched the Progressive Era - Harvard Book Store](http://ecx.images-amazon.com/images/I/61iWlrrNb1L.jpg)
New York Exposed: The Gilded Age Police Scandal that Launched the Progressive Era - Harvard Book Store
![CHIEF BYRNES RETIRED; Had Served Over 32 Years on the New-York Police Force. BOARD ACTED AT HIS OWN REQUEST Inspector Peter Conlin Appointed by the Commissioners as Acting Chief of Police. THREE CHIEF BYRNES RETIRED; Had Served Over 32 Years on the New-York Police Force. BOARD ACTED AT HIS OWN REQUEST Inspector Peter Conlin Appointed by the Commissioners as Acting Chief of Police. THREE](https://s1.nyt.com/timesmachine/pages/1/1895/05/28/106062821_360W.png?quality=75&auto=webp&disable=upscale)