The St.Charles Borromeo Cemetery was moved twice in the 19thcentury. Oral tradition and records of the Archdiocese of St. Louis suggested that Point duSable's remains were also moved. On 12October 1968, the Illinois Sesquicentennial Commission erected a granite marker at the site believed to be Point duSable's grave in the third St.Charles Borromeo Cemetery. In 2002 an archaeological investigation of the grave site was initiated by the African Scientific Research Institute at the University of Illinois at Chicago. Researchers using a combination of ground-penetrating radar, surveys, and excavation of a area did not find any evidence of any burials at the supposed grave site, leading the archaeologists to conclude that Point duSable's remains may not have been reinterred from one of the two previous cemeteries.