Thornbury Farm in West Chester, PA is a haunted location with ties to the Battle of Brandywine, where the main house, barn, and spring house were used as a hospital and prison camp, leading to reports of spirits, including a crying child, a soldier blocking a staircase, and a man who died in a well. The site has been investigated by paranormal groups, including Ghost Hunters, who documented experiences such as a flashlight turning off and cold spots. Thornbury Farm was part of the final engagement of the Battle of Brandywine in 1777, resulting in a high number of casualties and the site's conversion into a makeshift hospital and prison camp. Paranormal investigators and mediums have documented the spirits of at least nine individuals on the property. A prominent spirit is that of a little girl who is said to be searching for a lost doll near a well. Visitors and investigators have reported encountering a fearful child soldier, a soldier blocking a staircase, and a phantom man who froze to death in a well. The spring house is said to be haunted by a disgruntled old man. The spirit of the original owner, who died by suicide by hanging himself over the basement well, is also said to reside there. An unidentified presence is reported to be attached to the master bedroom, with a young girl's sobbing heard in the next room.