Letter dated February 5, 1887 from Brig. General, Chief of Army Engineers James C. Duane to Senator Dwight M. Sabin indicating that the War Department has no authority over shortening the pontoon draws, as the bridge was built under the authority of the Minnesota Legislature.
Letter dated January 20, 1911 from E. J. Miller, Minnesota Highway Department to Stillwater City Engineer J. Abercrombie regarding the life expectancy, suggested method of repars and posted speed and wieght limits of the existing Stillwater pontoon bridge
Letter dated April 3, 1924 from Stillwater Mayor R. J. Coffeen to C. M. Babcock, Commissioner of Highways regarding ownership of the bridge, Chapter 323 of laws of 1921 and the role of the state highway commission.
Letter dated July 10, 1924 from Stillwater Mayor R. J. Coffeen to C. M. Babcock, Commissioner of Highways regarding maintenance, repair and ownership of proposed bridge, including Chap. 530 Laws 1919. Article 16 Constitution of Minnesota regarding Route No. 45.
Notes dated July 28, 1924 of Hudson, Wisconsin Mayor George H. Tappins regarding cost of Hudson bridge. The handwritten notes are written on the back of a blank invoice for Consolidated Lumber Company, Retail Yards in Stillwater, Minnesota.
Letter dated October 2, 1924 from Stillwater Mayor R. J. Coffeen to C. M. Babcock, Commissioner of Highways regarding a special meeting and resolution passed regarding maintenance and ownership of the Stillwater portion of the bridge.
Resolution dated October 2, 1924 requesting State Highway Commissioner of Minnesota to take over that part of the bridge owned by the city of Stillwater within the limits of the state of Minnesota and make it part of Trunk Highway No. 45. Includes part of Subdivision 1 of Section 13, Chapter 323, Laws 1921 relating to interstate bridges.
Notes dated October 17, 1924 regarding the location the bridge over the St. Croix River and the direction of the St. Croix River flow. The handwritten notes are written on an advertising borchure for the Custom Built Cadillac Fisher, St. Paul Cadillac Company.
Letter dated October 23, 1924 from Minnesota Highway Department to J. T. Donaghey, Acting Highway Commissioner, Wisconsin Highway Commission advising the Wisconsin Highway Department to take over that portion of the bridge located in Wisconsin.
Letter dated December 27, 1924 from Stillwater City Attorney Edwin D. Buffington to Wisconsin Highway Commission asking describing the interstate bridge at Stillwater and wondering whether the state of Wisconsin is authorized to take over the portion of the bridge lying within the State of Wisconsin.
Letter dated January 5, 1925 from M. W. Torkelson, Wisconsin Highway Commissioner to Stillwater City AttorneyEdwin D. Buffington regarding St. Croix County's as opposed to the sate of Wisconsin's responsibility for maintaining a new bridge.
Letter dated January 8, 1925 from MN State Senator George M. Sullivan to Stillwater City Attorney Edwin D. Buffington announcing his intention to introduce a joint resolution between Minnesota, North and South Dakota and Wisconsin on the subject of interstate bridges.