This collection includes notes of lectures delivered by Professors L. H. Bailey, R. C. Kedzie and A. J. Cook; speeches and a manuscript prepared by Bregger while he was a student at Michigan Agricultural College (now Michigan State University); commencement programs and programs of meetings he attended; and programs for the M.A.C. Semi Centennial celebration in 1907. The correspondence is arranged into five folders. The first two contain mostly letters written by Bregger to his older brother, John, and provide information concerning the controversy surrounding the career of Samuel Johnson, Professor of Practical Agriculture, 1879-1889; the construction of the Armory; and daily life at M.A.C. during the years 1884-1889. The next two folders contain letters written mainly by his wife, Anna, to her foster parents, and include some information about her alma mater, the University of Michigan. The last folder contains undated letter fragments, and an additional folder contains two letters written by Bregger to newspapers. The collection also includes an 1888 class ring which is maintained separately from the manuscript materials.