These papers consist of one microfilm reel and one folder. The microfilm was prepared partially in 1954 and partially in 1968, and then spliced together. Part 1 contains a typescript of Arpin's account of his experiences as a soldier and several letters concerning later medal awards. Part 2 contains two notebooks kept by Arpin describing his experiences; copies of three letters between Arpin and Adjutant General Charles L. Sheridan, 1921; and a Summary of Operations of the Thirty-second Division in the Aisne-Marne offensive.
The unfilmed portion of the papers, 1917-1926, includes promotion certificates; correspondence concerning the Distinguished Service Medal eventually awarded to Arpin and charges that National Guard units were discriminated against in medal awards; and correspondence concerning the American Battle Monuments Commission's research on exact locations of the front lines of American divisions in World War I.
For a published account of Arpin's experiences, the researcher is referred to the Wisconsin Magazine of History, Vol. 51, Nos. 1-3 (1967, Autumn - 1968, Spring), published by the State Historical Society of Wisconsin.