Hannah Cresap

http://en.wikipedia.org/wiki/Cresap%27s_War

Cresap's War (also known as the Conojocular War — from the Conejohela Valley where it was located (mainly) along the south (right) bank) was a border conflict between Pennsylvania and Maryland, fought in the 1730s.

During Cresap's War, Hannah Johnson, wife of Thomas Cresap, frequently mounted a horse and rode with the mounted militia with a sword by her side. When Cresap's stronghold was surrounded by militia from Donegal, Hannah knew how to handle a musket. She superintended the construction of a house and the building of some flatboats, in the absence of her husband, at John Hendricks', now the upper end of Wrightsville, where forcible possession had been taken of Hendricks' plantation by Cresap. While there she saw a flatboat filled with armed men crossing the river. She mounted her horse, sounded a bugle, and rode rapidly to Cresap's fort, three miles (5 km) and a half down the river. She returned at the head of the militia.

Some researchers report that Hannah was born in Harford County, Maryland, rather than Baltimore County; however, Harford County was formed in 1773 from the eastern part of Baltimore County, which was after Hannah's birth. Source: "Harford County, Maryland," Wikipedia, http://en.wikipedia.org/wiki/Harford_County,_Maryland, Accessed 26 Jun 2014.