Abstract The drawings architectural drawings of the Defense Depot of Ogden (DDO) deal mostly with renovating, remodeling, and updating the buildings between the 1940s and the late 1990s. There is a group of drawings in the early 1940s that includes original blueprints for newly built buildings. Almost every drawing was given a number within a series. The series if fairly easy to follow with each project number followed the last two digits of the year in which the drawing was used. The series from the...