Catoctin Furnace genetic timeline (IMAGE) Harvard Medical School Caption Timeline indicating years of Catoctin Furnace operation, birth years of related study participants, and years separating Catoctin individuals from present-day relatives. Credit Harney et al., Science Usage Restrictions noncommercial use, with credit License Original 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.