Abstract This collection consists primarily of three journals of John Howard Allison, spanning the years 1908-1923, and covering the period of his work for the Forest Service in Arizona and New Mexico and later as a professor of forestry at the University of Minnesota. Included is Allison's Forest Service Account book for 1909-1910. Also in the collection are digital copies of five albums of photographs taken by Allison, mostly during his work for the Forest Service in Arizona, 1906-1908, but also...