The Soldiers National Museum in Gettysburg, Pennsylvania occupies a structure with profound historical significance relating directly to the American Civil War and specifically to the Soldiers' National Orphanage established to provide shelter and education to children orphaned by the conflict. The building represents architectural and institutional continuity with the American Civil War era, constructed deliberately to serve humanitarian purposes supporting vulnerable populations created by the devastating war's enormous casualties and societal disruption. Gettysburg itself emerged as the epicenter of American Civil War focus following the three-day Battle of Gettysburg in July 1863, which resulted in approximately 51,000 casualties and effectively represented the crucial turning point in the war's trajectory and outcome. The Soldiers' National Orphanage served as an essential institution addressing the humanitarian crisis created by the war, providing structure and support to displaced and orphaned children lacking conventional family support systems. The museum subsequently transformed the historical orphanage structure into an interpretive facility dedicated to documenting Civil War history, military institutional development, and the profound experiences of those affected by the conflict. The paranormal reputation of the Soldiers National Museum centers upon Rosa Carmichael, a spirit entity manifesting consistently throughout the building structure with particular concentration in subterranean spaces and basement areas of the historical complex. The museum's paranormal phenomena concentrate with particular intensity within the dungeon, basement, and associated subterranean structures underlying the building, suggesting traumatic events, emotional distress, or tragic circumstances associated with these lower levels created particularly strong spiritual manifestations. Rosa Carmichael's identity, her relationship to the orphanage institution, and the specific circumstances of her death or paranormal attachment remain subjects of ongoing paranormal research and historical investigation by researchers and paranormal enthusiasts. The basement and dungeon areas allegedly functioned as spaces associated with discipline, punishment, confinement, or other institutional practices that may have created emotional trauma contributing to Rosa's spiritual manifestation and ongoing paranormal presence. Paranormal researchers conducting investigations within these subterranean spaces have documented unexplained phenomena persisting despite the structural separation from upper floors. Disembodied voices captured on electronic recording equipment suggest attempted communication or manifestation of habitual vocalizations from historical periods when the orphanage operated actively. Apparitions of humanoid figures have been observed, described as solid-appearing entities materializing briefly before dissipating when approached or directly observed by investigators and visitors. Poltergeist activity—spontaneous movement of objects without mechanical cause—has been documented throughout the basement and dungeon areas, suggesting powerful energy manifestations concentrated within these subterranean zones. The dungeon itself represents one of the most intensely haunted zones, with visitors descending into the dungeon frequently reporting overwhelming sensations of dread, unexplained fear, sudden emotional shifts, and psychological distress that dissipates immediately upon exiting the space. Paranormal investigators equipped with electronic equipment have detected unusual electromagnetic fluctuations, unexplained temperature variations, and potential electronic voice phenomena within the dungeon exceeding phenomena documented in surface level rooms. Today, the Soldiers National Museum continues functioning as a historical and interpretive institution dedicated to Civil War history and the experiences of soldiers and civilian populations affected by the conflict and its enormous casualties. The paranormal reputation has been acknowledged in paranormal research literature and has attracted paranormal researchers conducting investigations within the building structure and its subterranean spaces. Museum management has accommodated carefully conducted paranormal investigations recognizing the research value of documenting phenomena, though access to dungeon and basement areas has been carefully controlled to balance paranormal research interests with preservation of the historical structures. Rosa Carmichael's spirit shows continuity in paranormal manifestations, with no indication of diminished activity or spiritual departure despite contemporary institutional functions and historical reinterpretation efforts by the museum.