Ancestors of Molly pitcher ? Where in Germany was Johann Ludwig born/living prior to emmigrating N. America ?

John and Gretchen Ludwig were from Germany, emigrated to the British N. American Colonies where their daughter Mary Ludwig was born in 1754. She became a "Patriot" and served water to revolutionary soldiers in the battlefield, stepping in to help load and fire cannon when soldiers fell. She became thus the "Molly Pitcher" of lore.