A letter written to Mr. T. N. Carswell, Abilene, Texas from John Camp, The Ohio Oil Co., Houston, Texas, dated September 8, 1938. Camp notes his surprise at Carswell's retirement as Secretary of the Abilene Chamber of Commerce and expresses his regret for the City's loss stating that in his opinion Carswell "as Secretary, contributed more toward the welfare of the town than any other citizen", and wishes him success in his new business.

A letter written to Mr. T. N. Carswell, Abilene, Texas, from Wright Morrow, Houston, Texas, dated March 8, 1957. Announcement by Morrow of his decision not to file in the Senate race due to the confusion surrounding the vacated seat and the division of political sentiment of the Democratic political philosophy in Texas. He expresses his appreciation for Carswell's support and help and advises of his preference to not make any recommendations of support for any one of the other candidates.