Another six weeks of excavation has helped archeologists find more clues about the pre-Civil War freed slave village of Timbuctoo in New Jersey's Burlington County. On Tuesday, Temple graduate student Chris Barton and anthropology professor David Orr shared their results with local officials. Although 15,000 artifacts have been recovered, others may never be found. "We have found evidence of robbing of some of the bricks that made up the houses," Barton said. "On some levels, only bricks in poor condition were left….It was a cheap way to get construction materials."