The Lisbon Cemetery project was a success with over 50 headstones being leveled in May 2006. An additional 15 headstones were completed in May 2007. The Lisbon Cemetery Historical Marker reads:

"In 1870 Samuel Sloan (1811-1892) and E.A. Gracey (1837-1915) donated 5 acres of land near the center of the pioneer town of Lisbon, now part of Dallas, as a church and cemetery site. The oldest known grave is that of James J. Dowd who died Oct. 24, 1871. A community church and school was erected in 1871; later separate churches were built. After the school was closed in 1917 and the churches were moved to other locations, the property was used only for burial. Descendants of the town's early settlers formed the Lisbon Cemetery Association in 1948 to restore and maintain the site."