A century ago, John H. Roop left the family farm near Sams Creek in rural Carroll County to open a grocery in New Windsor, then a thriving resort town for hordes of summer vacationers from Baltimore.

There is an online auction going on for Historic Roop’s Mill, which includes a Mill Building, pictured, (C. 1816), Manor Home (C. 1825) and other farm buildings. There is an online auction going ...