During the American Revolution, a barber from Carlisle, Pennsylvania named John Hays joined the Patriot forces, becoming an artilleryman in Captain Francis Proctor's company of the Pennsylvania Artillery. His wife, Mary Ludwig Hays, accompanied him on the campaign with George Washington's Revolutionary Army, as did many military wives of the day. Mary, a 22-year-old daughter of German immigrants, soon became known as an illiterate, hard-drinking, tobacco-chewing woman who could curse with the best of the soldiers, and was popularly called Molly by the men. During the winter of 1777-1778, she stayed in the women's camp with Washington's army in Valley Forge, Pennsylvania after British forces had captured Philadelphia earlier that year.