The 4 female spies who shaped the American revolution

The bravery and heroism demonstrated by America's forefathers during the American Revolution has been widely documented and celebrated. Patriot rebels not only fought against the British forces on the battlefield, but worked to bring them down undercover, taking missions to gather intelligence that would often require them to pose as the enemy, cause strife amongst their neighbors, and risk the lives of their family and friends.

When people think of these early American spies, many think of the work of Nathan Hale, but few people know that women were also working to destroy British occupiers from the inside out.

These are some of the most prominent female spies of the American revolution:

1. Agent 355 was a prominent member of the Culper Spy Ring

There were several Patriot spy rings that worked to overthrow British occupation during the Revolutionary War, but very few of these secret groups had women who actively took part in the espionage.  The Culper Spy Ring, however, is known mainly for a very unusual agent, a spy known then and now only as 355 — the group's code number for the word "woman." The mystery woman's identity was kept secret to protect herself and likely her family, but her daring contributions to the American cause have been remembered in history. She took part in several counterintelligence missions, including spy operations that resulted in the arrest of major John Andrew — the head of England's intelligence operations in New York — and the discovery of Benedict Arnold's treason.

Some historians guess that Agent 355 was likely a shop keeper or a merchant who learned information about Red Coat military operations from chatty British customers, and that she would then divulge this information to George Washington. Regardless of her methods, Agent 355 made critical contributions to the Revolutionary cause.

2. Anna Smith Strong used her laundry as a coded Patriot communication system

Agent 355 wasn't the only woman who operated under the Culper Spy Ring, however. Another woman, Anna Smith Strong, worked alongside 355 and her male compatriots in Long Island, and was known for her fierce patriotism and fearlessness. Strong's sleuthing wasn't quite as flashy as Agent 355's, but the communication system she developed for the saboteurs was incredibly influential. Abraham Woodhull, a member of the ring, needed a way to find the location of Caleb Brewster's boat undetected, so he could then give him the top-secret information gathered for Gen. George Washington. It was too risky to search in multiple ports for the ship or ask for its whereabouts — if he drew attention to himself, he could be arrested and hanged for treason to the Crown.

To remedy this, Anna Strong developed a coded line of communication using her family's wash line. Woodhull would hide his boat in six different locations in various patterns, and each one of these places was identified by a number. Smith would then hang clothes on the line in concordance with the code. The number of handkerchiefs hung out to dry signaled the number of the secret location, and she would add a black petticoat to signal that Brewster was close by. This system, as simple as it sounds, allowed the Culper Ring to operate undetected, and made huge gains for American freedom.

3. Ann Bates posed as a peddler to glean military information — for the British

The contributions of female spies to the American Revolution is incredibly impressive, but the Patriots weren't the only ones with ladies working undercover. The British forces had women working for them as well, and Anna Bates was one of the best. Bates was a Loyalist schoolteacher in Philadelphia who began spying for the Red Coats in 1778, posing as a peddler and selling knives, needles, and other dry goods to the American military.

While she sold her wares to the rebel forces, she also took note of how many weapons and soldiers each camp held, and would pass this information along to loyalist sympathizers and British officers. Luckily, though Bates's work was helpful to the British military, it wasn't enough to derail the coming success of the American Revolution.

4. Lydia Darragh risked the lives of her sons for the American cause

While many spies were part of complex underground networks, some worked alone — like housewife Lydia Darragh. When British officers began using a large room on the second story of the Darragh's home for military meetings, Darragh was quick to capitalize on the opportunity to gain information. Before the officers would file into the room, Darragh would hide inside an adjoining closet and press her ear to the wall, taking notes on the clueless officers' battle plans.

She would then have her husband, William, translate her work into a coded shorthand on little pieces of fabric or paper. She would then fold the slip to fit over the top of a button mold, cover the mold with fabric, and then sew the message-filled buttons on to the shirt of her teenage son, John. Darragh would then send John on "visits" to his older brother Lt. Charles Darragh's house, who would then take the buttons and present the stolen information to other rebel military leaders. It was an incredibly risky endeavor, but Darragh was willing to risk her own safety — and the safety of her family — for the American cause.

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