The Louis Smaus collection spans the years 1920-1922 and documents the projects that Smaus primarily worked on during his time with the MacRorie-McLaren Company. The collection is represented in one series: Project Records.

The Project Records series is primarily comprised of reproductions of plans and proposed plans for educational, recreational, and residential properties. Distinguished projects include University of California Memorial Stadium, The Stanford University Stadium, and The Carolands Estate.

The Smaus collection also contains photographs from his time with the MacRorie-McLaren Company, including images of the nursery and showcases of plants used for the 1915 Panama Pacific International Exposition. Many of the photographs within the collection were taken by the well-known Moulin Studios as seen by the stamp on the back side.

There is one oversized folder that contains four blueprints from projects such as:___