On the bluffs above the Mississippi River, the town of Alton, Illinois holds a record that most American cities would prefer to leave buried. Between 1862 and 1865, a former state penitentiary on its riverbank confined thousands of captured Confederate soldiers, and disease moved through the overcrowded cells faster than any sentence a court could hand down.

America’s oldest established ghost conference returns to the area this summer, and it convenes in a place where the boundary between documented history and reported haunting has never been a clean line.

Death Within the Alton Prison

The structure at the center of Alton’s dark heritage opened in 1833 as the first state penitentiary in Illinois, a cramped riverbank facility of stone cells that the state abandoned by 1860 after sustained complaints about its damp, unhealthy site; the inmates were transferred to a new prison at Joliet. War reopened it.

With the Confederate prisoner population outpacing the capacity of the St. Louis facilities, the Union army returned the empty penitentiary to use, and the first prisoners arrived on February 9th, 1862. More than 11,764 men passed through over the next three years — not only captured Confederate soldiers but Union deserters, accused guerrillas, and civilians, including several women, held on charges of disloyalty.

Conditions were severe by the standards of an already brutal system. The prison was chronically overcrowded, its sanitation inadequate, and discipline enforced through punishments such as being bucked and gagged or hung by the thumbs, while prisoners sentenced to hard labor broke rock in a nearby quarry.

No fewer than 1,500 of the men confined there died of disease and privation, a mortality rate above the average for a Union prison, and the Soldiers Monument in the North Alton Confederate Cemetery still records their names.¹ Pneumonia and dysentery did the steady, undramatic work of killing.

The prison closed on July 7th, 1865, and was dismantled over the following decades, leaving only a fragment of stone wall that the State of Illinois maintains as a historic site.

The Island That Held the Dying

Smallpox was the disease Alton feared above the rest, and it surfaced inside the prison in 1862 before peaking the following winter, when the infection killed prisoners at a rate of several each day. As it spread, the citizens of Alton refused to allow the sick to be quarantined anywhere within the town.

The authorities ferried the contagious instead to a derelict summer cottage — a converted pesthouse — on a small island in the Mississippi, the same ground where Abraham Lincoln and James Shields had nearly fought a duel in September of 1842 before settling their quarrel.²

The place soon carried the only name it is now remembered by: Smallpox Island. Roughly 240 Confederate soldiers and civilians were buried there, alongside about 200 Union inmates.³

The reasoning behind the island was the oldest in epidemic management — remove the diseased body from the healthy population, set a boundary of water between them, and let distance accomplish what medicine could not. Alton’s case carries an unusual final chapter. Through the early twentieth century the island flooded and silted until it disappeared beneath the river, carrying the graves with it. The spatial segregation that organized the epidemic outlasted the epidemic itself, then quietly erased its own evidence.

America’s First Ghost Conference

This documented record is the reason the Haunted America Conference, founded in 1997 and now in its 29th year, treats Alton as more than a convenient setting. The event runs from June 25th to 28th, 2026, on the campus of Lewis and Clark Community College in nearby Godfrey, and its organizers are firm that it is a speaker-based program of presentations, discussions, and hands-on workshops rather than a paid-autograph meet-and-greet.

The 2026 roster lists approximately 57 speakers and presenters across the four days, a scale that separates a sustained research community from a single-author lecture series. Its founder, Troy Taylor, is the author of more than 150 books on hauntings, crime, and the unexplained, the founder of American Hauntings Ink, and a host of the long-running American Hauntings Podcast.

His decades of documentation work on Alton supply the conference’s central argument: that the city’s hauntings are an extension of its historical record rather than a substitute for it. Attending becomes a form of dark travel in its most demanding sense — forensic, historically grounded, and geographically specific.

Four Days on the Godfrey Campus

The conference centers on Lewis and Clark Community College in Godfrey, with the Great Rivers Hotel in Alton serving as the official lodging partner at a discounted weekend rate. Tickets and registration are handled online through the official conference website, which links to the American Hauntings booking page, though the full weekend admission price was not publicly posted at the time of writing.

The optional after-hours program is priced separately and confirmed: guided ghost hunts, workshops, and haunted tours of Alton run from $22 (approx. COP 75,000) to $46 (approx. COP 158,000), with several sessions and all vendor spaces already sold out months ahead of the event.

Anyone weighing the trip should treat the daytime lectures as the core of the weekend and the after-hours investigations as quick-selling additions.

The River’s Long Erasure

What gives Alton its standing in dark heritage research is not a reputation for ghosts but the density and specificity of what can be proven about its dead — the prison records, the cemetery monument, the surviving wall, and a founder’s lifetime of documentation. The island that held the dying is gone, dissolved into the same river that once carried the prisoners north.

The conference returns each summer to the place where that evidence accumulated, which is finally the argument it makes about itself: that the most rigorous way to confront a haunting is to begin with the record that produced it.

When the record of a place is this complete — its names, dates, and causes of death all accounted for — does that precision deepen what you feel standing on the ground that holds its dead, or does it leave less room for the unexplained?

References

1. American Battlefield Trust. ‘Alton Military Prison Site.’ Accessed June 17th, 2026. ↩︎
2. Madison County, Illinois GenWeb Project. ‘Alton Military Post and Prison.’ Accessed June 17th, 2026. ↩︎
3. Madison County Historical Society. ‘The Alton Military Prison.’ Civil War Stories. Edwardsville, IL: Madison County Historical Society. Accessed June 17th, 2026. ↩︎