Caldwell is a city in and the county seat of Canyon County, Idaho. The population was 59,996 at the time of the 2020 United States census, making it the 5th most populous city in Idaho.

Thomas Chalkley Coffin was an American lawyer and veteran of World War I who served part of one term as a congressman from Idaho. As a Democrat, he served in the U.S. House from 1933 until his death in 1934.