Thomas Dyer
Thomas-dyer (1).jpg
18th Mayor of Chicago
In office
March 11, 1856[1] – March 10, 1857[2]
Preceded byLevi Boone
Succeeded byJohn Wentworth
Personal details
Born(1805-01-13)January 13, 1805
Canton, Connecticut
DiedJune 6, 1862(1862-06-06) (aged 57)
Middletown, Connecticut
Resting placeGraceland Cemetery
Political partyDemocratic
Residence(s)Chicago, Illinois

Thomas Dyer (January 13, 1805 – June 6, 1862) served as mayor of Chicago, Illinois (1856–1857) for the Democratic Party. He also served as the founding president of the Chicago Board of Trade.


Thomas Dyer was born in Canton, Connecticut on January 13, 1805.[3]

He was a meat-packing partner of former mayor John Putnam Chapin, who was one of Chicago's first meat packers. Chapin built a slaughterhouse on the South Branch of the Chicago River in 1844.[4]

Running as a "pro-Nebraska" Democrat (aligned with Stephen A. Douglas, who publicly backed his candidacy), Dyer won the contentious 1856 Chicago mayoral election, defeating former mayor Francis Cornwall Sherman (who ran as an anti-Nebraska candidate).[5][6]

He died in Middletown, Connecticut on June 6, 1862, and was buried at Graceland Cemetery in Chicago.[3]


  1. ^ "Mayor Thomas Dyer Inaugural Address, 1856". Chicago Public Library. Retrieved May 26, 2020.
  2. ^ "Mayor John Wentworth Inaugural Address, 1857". Chicago Public Library. Retrieved May 26, 2020.
  3. ^ a b Andreas, Alfred Theodore (1884). History of Chicago: From the Earliest Period to the Present Time. Vol. I. A. T. Andreas Company. p. 622. Retrieved November 15, 2021 – via Google Books.
  4. ^ Group, Genealogy Trails History. "The History of Chicago's Mayors - presented by Illinois Genealogy Trails". Retrieved January 26, 2018.
  5. ^ Goodspeed, Weston A. (February 6, 2017). The History of Cook County, Illinois. Jazzybee Verlag.
  6. ^ Property Rules: Political Economy in Chicago, 1833-1872 by Robin L. Einhorn