PolitiFinder

1866 Illinois U.S. House District 6 Election

Illinois · 2 candidates · See every 1866 U.S. House race

Who won the 1866 Illinois U.S. House District 6 Election?

Burton Cook won the 1866 Illinois U.S. House District 6 Election. Burton Cook received 15,015 popular votes (66.04%). The main challenger was Walter H Harris (33.96%).

See the full head-to-head between Cook and Harris

Cook +32.1 pts · won by 7,294 votes
Burton CookRepublicanWINNER66.04%
15,015 votes
Walter H HarrisDemocratic33.96%
7,721 votes
Popular-vote totals for this U.S. House election come from the Constituency-Level Elections Archive (CLEA) and the official public record.

Data last verified July 28, 2026.