The tiny, wood-framed house stands alone beside a dry stone wall next to an unpaved road. Known as Innis (or Ennis) House, it is now part of the Fredericksburg and Spotsylvania National Military Park. The road that runs beside the house is the infamous Sunken Road, the site of the bloodiest military engagements of the First and Second Battles of Fredericksburg during the U.S. Civil War. Many of the over 12,000 Union troops killed during the First Battle of Fredericksburg died at Sunken Road. Innis House is a modest building…