School: Maryland
Frederick County Jacob Ernst may have been a relative of the gunsmith Adam Ernst. A Jacob Ernst married Mary Smith on June 21, 1758. Jacob the gunsmith was a resident of Frederick County and is included in the 1790 federal census. In July of 1803 a letter was awaiting him at the Frederick-town Post Office, however he was living in Adams County, Pennsylvania. He returned from Berwick Township and was listed as a resident of Frederick County on October 11, 1811, when he purchased the tract of land called Peter’s Promise. By 1820 he was living in Franklin Township, York County, Pennsylvania. For further reference, see Arms Makers of Maryland. For additional information see Maryland Longrifles Hartzler/Whisker.