Tree Ring Barn (IMAGE) West Virginia University Caption Preparing to collect tree-ring samples from The Pitsenbarger Barn in Pendleton County. The barn was later determined to have an inferred construction date of 1840. Credit Kristen de Graauw Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.