William Wilson (ca. 1762 – October 1821) — known as The Pennsylvania Hermit — became a figure in the folklore of southeastern and south-central Pennsylvania in the late 18th and early 19th centuries. His sister Elizabeth had been condemned for the murder of her children, although many believed her to be innocent of those charges. A pardon for Elizabeth was granted by the state and entrusted to William, but he was unable to deliver it in time to stop the execution. Following his sister's death, William withdrew from society, wandering westward across southeastern Pennsylvania and ultimately living his last 19 years in a cave near Hummelstown.

In some sources, William and Elizabeth are referred to as Amos Wilson and Harriot Wilson. However, the historical record leaves no doubt that the Hermit and his sister were named William and Elizabeth. The origin of these "alternate" names has never been fully explained.

Many key elements of the Wilsons' saga are documented in the records of the Chester County Courts and the Commonwealth of Pennsylvania. However, the story quickly became a part of local folklore and was embellished by generations of storytellers. It is often possible to note which elements of the tale are a part of the historical record and which might be considered suspect. However, the story of the Pennsylvania Hermit might best be considered historical fiction, as the familiar tale incorporates elements of both history and fiction, not unlike the popular image of a Johnny Appleseed or Davy Crockett. The following is a synthesis of numerous sources from both genres and is best regarded as historical fiction.

Early life Little background information has survived regarding the Wilson family. Some early accounts report that William and Elizabeth's father was a farmer named John Wilson. John's first wife, and the children's mother, was also named Elizabeth.

Sources are divided regarding the Wilsons' ages. Some indicate that William was born ca. 1764, and his sister two years later, while others suggest that Elizabeth was born ca. 1758 and that William was her younger brother by an unspecified period of time.The Pennsylvania Hermit: a Narrative of the Extraordinary Life of Amos Wilson (1839). Philadelphia: Smith & Carpenter.A Faithful Narrative of Elizabeth Wilson. At least four versions are extant: Philadelphia (1786), New Haven (1786), Hudson (1786), Philadelphia (1807).Butterfield, Roger P (5 March 1933). The Hangman Who Didn't Wait. Philadelphia: Public Ledger. There is no record of other siblings, and some accounts specify that William was his parents' only son and Elizabeth their only daughter. William was said to have been born in Lebanon, in present-day Lebanon County, although in every other instance he and his family are linked to Chester County.

(Prior to 1789, Chester County included all of present-day Delaware County, and Chester City was the county seat. Chester City then served as the seat of Delaware County until the seat was moved to Media in 1851.)

The Wilson family lived in Chester County, most likely in East Bradford or West Bradford Township.O'Neill, Robert F (25 June 1995). Hummelstown Caves Conceal a Tragic Tale. Philadelphia: Philadelphia Inquirer.Grigson, Carol (1997). Personal correspondence.Indian Echo Caverns (undated). Guide orientation materials. Theirs was a farm family of modest means but solid reputation. During the American Revolution they sided with the British, and much of their property was confiscated by American forces. When the children were still young the elder Elizabeth died. Their father later remarried, but his second wife did not care for her stepchildren, and she encouraged their father to send them away as soon as they were of age.Execution of a Woman in the Olden Time (6 Jan 1854). Chester: Delaware County Republican 21(23).

The case of Elizabeth Wilson

At sixteen, William was apprenticed to a stone carver named Fahnestock away in Lancaster County. Elizabeth went to Philadelphia and became either an employee or patron of the Indian Queen Tavern.Davis, J Allen (undated). clipping in Dr. Anna Broomal's Chester Notebook Vol 3, pp 57-60. In early 1784, Elizabeth was seduced by a tavern guest who soon after disappeared, leaving her pregnant. As her pregnancy became increasingly obvious her presence became too great an embarrassment, and she was made to leave the Indian Queen. She returned to her parents' home where she gave birth to twin sons.

Murder In October, 1784, Elizabeth disappeared while traveling to meet her erstwhile lover in Newtown Square. She reappeared several days later but the children were nowhere to be seen. Their bodies were soon found hidden in the woods nearby and Elizabeth was quickly arrested. She was charged with "the murder of her Two Bastard Male Children." In October, 1785, she was found guilty of murder in the first degree and was sentenced to hang. The date for the execution was set for 7 December 1785.

Confession and pardon Throughout the trial and the preceding events, William Wilson remained at work in Lancaster, unaware of his sister's predicament. But when Elizabeth was condemned to death William mysteriously announced that he was needed in Chester and would have to leave his job. He arrived at the jail on 3 December 1785. After recovering from the shock of seeing her brother so unexpectedly, Elizabeth was finally willing to relate the details surrounding her children's murder.

William hastily assembled a group of respected officials, including Judge Atlee, to witness Elizabeth's confession. Elizabeth explained that her seducer had agreed to meet her in Newtown Square. However, he unexpectedly met her in a wood about west of the town, then killed the children and swore Elizabeth to silence.Futhey, J Smith & Gilbert Cope (1881). History of Chester County, Pennsylvania, with Genealogical and Biographical Sketches. Philadelphia: Everts.Ashmead, Henry Graham (1884). History of Delaware County, Pennsylvania. Philadelphia: Everts. (Marginalia found in copy at Pennsylvania State Library, Harrisburg PA)

The confession was signed by the witnesses. William presented it to the Supreme Executive Council on 6 Dec 1785. The president of the Council was Benjamin Franklin, and its vice president was Charles Biddle (1745–1821). Biddle's journal includes a brief discussion of the Wilson case and, in addition to court and Council records, is one of the more reputable sources regarding the matter. The Council ordered that the execution be postponed until 3 January 1786, in order to allow them more time in which to consider the case.Minutes of the Supreme Executive Council of Pennsylvania (1853). Harrisburg: Commonwealth of Pennsylvania.

In the meantime, William went in search of his sister's erstwhile lover, but when he found him on a New Jersey farm he denied ever having known Elizabeth. William then began to seek out witnesses who could link the man with the city of Philadelphia and with his sister. He was successful in compiling a list of several people, but he became ill around Christmas and spent some time recuperating at a friend's home in Philadelphia.Biddle, Charles (1883). Autobiography of Charles Biddle. Philadelphia: Claxton.

Upon his next visit to the Chester jail, he was horrified to learn that Elizabeth's execution was scheduled for the following day. During his illness he had lost track of time and believed that it was 1 January, rather than 2 January.

William rode to Franklin's home to request another postponement of Elizabeth's sentence but had to wait several hours to see him. Franklin felt that it was improper for him to act and referred William to Vice President Biddle.Teeters, Negley K (Spring 1960). Public Executions in Pennsylvania: 1682-1834. Journal of the Lancaster County Historical Society 64(2). William found Biddle at the State House. Biddle wrote the order, "Do not execute Wilson until you hear further from Council," knowing that the members of the Executive Council were sympathetic towards Elizabeth and intended to grant a full respite.

With Biddle's pardon in hand, William began the ride to Chester. He rode down Market Street and approached the Middle Ferry across the Schuylkill River. Heavy rain had made the river dangerously high and choked it with ice and debris; the ferry was not in operation. The last of the Revolutionary War-era pontoon bridges spanning the Schuylkill had been destroyed by an earlier flood in 1784 and the ferry was the only means of crossing the river in that area. William pleaded with the ferryman for several hours but could not persuade him. Finally, in desperation, he drove his horse into the icy water. The animal struggled against the current but was struck in the head by a chunk of ice or driftwood just fifty feet from the opposite shore. William swam the rest of the way, and by the time he reached dry land he was approximately downstream from where he'd entered the water, beyond the area of Gray's Ferry. William found another horse and continued the ride to Chester, along what is today the Chester Pike (US Route 13).

Execution Meanwhile, officials in Chester began preparations for Elizabeth's execution. The sheriff of Chester (given as either Ezekiel Leonard or William GibbonsElizabeth Wilson (undated). Chester: Delaware County Republican.) was one of the many who had come to believe that Elizabeth was innocent and who, following her confession, suspected that she might be pardoned. He stationed flagmen at intervals along the Queens Highway (4th Street), leading from Philadelphia, who could signal if William were coming with a pardon. Those assembled watched expectantly for a signal but none was seen. Noon arrived, and by law the sheriff could wait no longer. The order was given and the cart was pulled from beneath Elizabeth Wilson's feet. She did not die outright but showed little sign of struggle. Several long moments passed before the crowd noticed white flags waving along the road from Philadelphia.

William rode to Hangman's Lot calling, "A pardon! A pardon!" His horse reared at the sight of Elizabeth's body, throwing him to the muddy ground beneath his sister. The sheriff quickly cut the rope and tried frantically to revive Elizabeth, but it was too late to save her. Varying accounts state that William arrived anywhere from mere moments to twenty-three minutes too late to deliver Biddle's pardon and save his sister's life.Martin, John Hill (1877). Chester (and Its Vicinity,) Delaware County, in Pennsylvania; with Genealogical Sketches of Some Old Families. Philadelphia: pub. by the author.Teeters, Negley (1967). “...Hang By the Neck...”. Springfield, IL: Charles Thomas.

According to legend, when William rose from the mud beneath the gallows tree his hair had turned prematurely white and his face was marked by the lines of old age. His speech was reduced to gibberish.

The Pennsylvania Hermit After several months in a state of delirium, William returned to work as a stone carver. However, he had lost all interest in society and eventually abandoned it. He began to roam westward across southeastern Pennsylvania, interacting with others only when he needed to negotiate for provisions. He was known as the Hermit of Welsh Mountain, suggesting that he spent some time on or around that ridge on the line between Chester and the easternmost point of Lancaster County, just east of New Holland.Ashmead, Henry Graham & William Shaler Johnson (1883). Historical Sketch of Chester on Delaware. Chester PA: Republican Steam Printing. He was said to have disappeared into the "Conewaga Mountains," perhaps referring to Conewago Hill on the west side of Mount Gretna. And he was known to have made grindstones and traded them for supplies in "Campbellstown" (most likely Campbelltown). All of this is consistent with a westward journey from Chester County to Hummelstown, perhaps along a route approximated by US Route 322.