Drum Barracks stands as a preserved military structure in Wilmington, California, representing a significant chapter in American Civil War history and the military infrastructure that supported Union operations in the southwestern United States during the 1860s. The building was constructed to house military personnel and serve as a command center for operations, representing the federal government's commitment to maintaining military control over the region even as the nation was divided by civil conflict. The structure features multiple rooms and spaces designed to accommodate officers, enlisted personnel, supply storage, and administrative functions necessary for military operations. The barracks is now maintained as a historical museum, preserving the building and its artifacts as a educational resource for understanding the Civil War period and the role of southwestern military installations in the broader conflict. The museum attracts visitors interested in history, military operations, and the everyday life of soldiers during the Civil War era. However, the building's historical significance is matched by its paranormal reputation, as multiple spirits appear to maintain an active presence within the structure. The paranormal presences at Drum Barracks are most prominently represented by two distinct entities who appear to have maintained a long-term presence within the building. Maria is identified as a woman who manifests in a hoop skirt, the garment suggesting either that she lived during the Civil War era or that her appearance is anchored to that period of history. Her apparition appears solid and clearly visible to observers, described as dressed in period-appropriate clothing that suggests her life spanned the era when the barracks was actively in use as a military installation. Maria's presence is often preceded or accompanied by the distinctive scent of lavender or violet perfume, a sensory manifestation suggesting the entity maintains sufficient energy and intention to create olfactory impressions in the physical world. The second entity is a uniformed officer from the 1800s who appears as a solid apparition wearing military dress and apparently smoking a pipe. His manifestations similarly include sensory components, with the smell of tobacco preceding or accompanying his appearances. The two entities appear to coexist peacefully within the building, though whether they interact with each other remains undocumented. Paranormal phenomena at Drum Barracks include both visual apparitions and phenomena affecting the other senses. The Model Room, located within the building, appears to be the most active location, with more frequent and intense manifestations concentrated in that specific space. Unexplained noises are common throughout the building, including sounds of dragging chains and footsteps that suggest movement through the corridors despite no visible source. The odors of perfume and tobacco are reported frequently and appear to be reliable indicators of the presence of Maria and the officer respectively. Items within the museum are sometimes moved from their expected locations, suggesting an active poltergeist phenomenon that may represent an entity other than Maria and the uniformed officer, or that may indicate these entities are capable of manipulating physical objects. Visitors to the museum frequently report emotional impressions and sensory perceptions that suggest the presence of conscious entities observing them as they move through the exhibits. The paranormal phenomena at Drum Barracks appear to be concentrated in the Model Room, where the manifestations are most frequent and intense, though apparitions and other phenomena have been documented throughout the building. The entities appear peaceful and non-threatening in their interactions with living individuals, suggesting they may be trapped spirits content to exist as eternal observers of the building they once inhabited. Maria's manifestations suggest she may have been associated with the barracks as a resident or visitor who maintained emotional connections to the location extending beyond her mortal life. The uniformed officer's continued presence similarly suggests emotional attachment to military service or to specific relationships or experiences that occurred within the structure. The phenomena are consistent across multiple visitor reports and investigations, suggesting genuine paranormal activity rather than isolated incidents or misinterpretation of normal phenomena. Paranormal investigation programs have documented the phenomena, contributing additional evidence to support the haunting claims. Drum Barracks continues to operate as a historical museum, preserving the paranormal phenomena as an integral component of the visitor experience alongside the historical artifacts and educational programming. The museum has incorporated the haunting into its promotional materials and historical interpretation, acknowledging the paranormal reputation while maintaining focus on the historical significance of the location. Visitors to the museum frequently report experiences consistent with the documented paranormal phenomena, including sightings of apparitions, unusual odors, and emotional impressions. The combination of historical preservation and active paranormal phenomena creates a unique location where past and present coexist, where Civil War era military history remains vividly present not only in artifacts and structures but in the apparently continuing presence of the spirits of those who lived and worked within the building. Drum Barracks represents a compelling example of how locations of historical significance may also become locations of paranormal activity, where trauma, loss, and profound emotional events may anchor spirits to the physical locations where their lives and deaths occurred.