The Horace Seaman Wisconsin Infantry collection is made up primarily of photos from Colonel Horace M. Seaman's service with the Wisconsin National Guard. The majority of the photos come from his service with the 4th Wisconsin Infantry in the Spanish-American War of 1898. The photos in the collection include many portraits of individuals that Colonel Seaman served throughout his years with the Wisconsin National Guard and in his service in the Spanish-American War. Also included are group portraits of the various battalion officers and photos of camps in Wisconsin and Alabama. Photos of a non-military nature include images of Galen Seaman and images from some of the places where Horace Seaman worked.