The post office has held an engineering firm, a bookstore, the Jesse Stuart Foundation, and several other businesses. The building currently houses Steen's Military Museum, which offers exhibits and artifacts related to the military from the French and Indian War to the modern era. Steen has been working on opening a military museum after twenty years of planning and collecting. The Steen family operates the building and the museum, with most items in the museum coming from their extensive collection of firearms and uniforms. The Steen family also provides the historic cannons that can be seen around downtown Ashland through their own cannon foundry.
Along with providing ease of access for visitors to see the military memorabilia, they provide a large venue for local events as well. This adds to the diversity of downtown Ashland by providing a new and historical place to host events and business functions.