Business and historical documents of the Sun and Times Company, covering the Daily Times and the origins of the Chicago Sun. Started by Samuel Emory Thomason in 1929, the Daily Times grew out of Thomason's purchase of the conservative Chicago Journal in 1928. Thomason sold the Journal's name and circulation to the Chicago Daily News but retained the paper's building and resources for his new venture. Edited by Richard J. Finnegan, and modeled after the New York Daily News, the Daily Times became a successful tabloid known as "Chicago's Picture Newspaper." Marshall Field III started the Chicago Sun in December of 1942 as a political counterpoint to Colonel Robert R. McCormick's Republican-focused Chicago Tribune. In 1947, Field merged the Sun with theDaily Times to create the Sun and Times company, publishing both papers daily: the Sun in the morning and the Times in the afternoon, and in one combined issue on Sundays. Less than a year later, the Sun absorbed the Times to become the Chicago Sun-Times company, publishing one daily paper.

Materials include business and legal documents pertaining to the merger of the Daily Times and Chicago Sun, information regarding issues with newspaper carriers and newsstands in the 1930s and 1940s, and documents related to a lawsuit against the Associated Press by Marshall Field III. The series also includes much historical material for both papers, including publicity, promotional materials, and past issues.