The Glidden Barn, located to the rear and east of the home, was thought to have been added to the National Register of Historic Places when the original nomination for the house was approved in 1973. However, in the late 1990s, the Illinois Historic Preservation Agency revealed that the nomination included only the house. The Glidden Historical Center initiated the process of adding the barn to the Register. Those moves were approved by the Illinois Historic Sites Advisory Council in 2002 and the barn officially became part of the National Register. The barn was built sometime around 1871, possibly even before, and is constructed of the same soft brick that makes up the exterior of the home. Tradition in the Glidden family holds that the barn, like the house itself, was designed and built by prominent local carpenter Jacob Haish. The famous barn, one of DeKalb County's oldest remaining, stands a full two-stories high, measuring around 50 feet (15 m) tall, with a width of 30 feet (9 m). In February 2007 the Glidden Homestead and Historical Center kicked off a fundraising drive. The drive is aimed at raising US$2 million to expand the Joseph F. Glidden House site to include museum space and a media center. Some of the funds will be used to help restore the barn and expand historical center museum space into the building. Architecture The Glidden barn is of pole and beam construction. The second-floor interior is dominated by two large transverse wooden beams. It is of the three-bay, English tradition, the west bay containing a space for a stairwell leading to a hayloft and seven stalls. It is constructed of red brick and stands on a foundation of limestone. Glidden's barn took full advantage of the term vernacular; the brick was locally manufactured and the limestone locally quarried. The east bay of the barn contains an animal stall in its northeast corner and a fully enclosed office in its opposite corner. The second-floor hayloft is supported by the two massive transverse beams. The full-sized loft is accessible via an enclosed staircase against the south wall. The building's exterior roof is fully supported by the brick walls. The result is a loft which is an entirely open space save for some pole and beam construction supporting the laminated beams, which act as tie rods at the base of the roof. The barn roof is a