Summer 2026 Old Jailhouse Dig
Big Finds at our Summer Dig!
This summer, Dr Jan Sigvartsen PhD and over 100 community members continued their search for the lost 1838 Berrien County "Old Jailhouse" behind Michigan's oldest courthouse. The most significant finds included an 1804-1807 "Drapped Bust" United States quarter coin, and a black, fossilized deer rib bone. Several "dud" arrowheads were also found along with a large number of chert shards that suggested arrowhead making took place on this site in the past. A large uneven hardened clay pan with charcoal and chert shards embedded into it was discovered in both squares at 35cm.
An amateur dig in 1975 failed to locate the 1838 Jailhouse. An 1860 map of Berrien Springs showed that the Old Jailhouse orientation was different to what was expected by the 1975 dig team and resulted in them digging in the wrong location. The 1975 amateur dig was also searching for a running foundation, or a basement, and may not have considered an alternative foundation structure. One of the sides of Square 1 in the 2026 dig by Dr Sigvartsen and his team revealed a deposit of gravel, suggesting it may be disturbed gravel backfill on a pole structure building. It is possible that the 1838 Jail was a pole structure, much like a barn. As such could have been completed in a matter of weeks, given buildings at the time did not have plumbing, electrical, insulation, or installed kitchens and bathrooms.
The 1838 Old Jailhouse was moved in the 1870s to the corner of Main and Ferry Streets to become the rear of Kephart's Pharmacy, which was later torn down and a brick building built in its place. The Old Jailhouse was then moved to another location and used as a house until the 1960s when it was demolished. A photo of the Kephart pharmacy exists (see insert photo), and if new siding was not put on the Old Jailhouse, it appears it may have resembled the Courthouse. A dig at this site will continue in the Fall 2026 semester and will look for similar gravel deposits to confirm if the building was indeed a pole structure.
Dr Sigvartsen would like to thank the Berrien Community Foundation and Tarragindi Initiative donors who made this dig possible. You can look at some of our finds on our Facebook page.