This collection is comprised of diaries, reports, correspondence, news clippings and photographs relating to a workers' revolt in Argentina. Argentina's history in the first quarter of the 1900s was a time of great political and social upheaval. The uprising documented in this collection is a good example of the culmination of conflicting ideals during the years 1921 and 1922. President Hipolito Yrigoyen's Radical party was undermined by the Conservatives. When the Argentine army became supporters of the Conservatives, Yrigoyen was forced to allow this new coalition free reign to quell the activities of unions and workers' revolts.

The collection contains the war diaries of Lieutenant D. Hector B. Varela as well as diaries and reports of other cavalry officials from November 1921 to January 1922. They include military orders and maneuvers; geographical descriptions; personnel lists; and the reports on the continuing development of the situation. Also in the collection are newspaper clippings and political cartoons that reflect the opposing attitudes that existed concerning the outcome of the uprising. There are individual and group portraits of the soldiers as well as photographs of the sites of destruction during the conflict. The correspondence that took place after the repression of the upheaval illuminates the attitudes within the military about the situation and the men involved up until 1965. All of the materials in the collection are photocopied reproductions. The written materials have been transcribed and arranged chronologically.

This collection is organized into five series:

• Series 1. Diaries from the 10th Regiment, 1921
• Series 2. Diaries and Reports from the 2nd Regiment, 1921-1922
• Series 3. Correspondence, 1922-1965
• Series 4. News Clippings, 1922
• Series 5. Photographs, 1921-1922