Laidler's Ferry operated near the Potomac River crossing now spanned by the Governor Harry W. Nice Memorial/Senator Thomas "Mac" Middleton Bridge. In the eighteenth century, ferries were essential pieces of road infrastructure. Rivers too broad for ordinary bridges could otherwise interrupt travel for miles. A landing, boat, ferryman, approach road, and nearby accommodations turned this point into a working link between southern Maryland and the routes leading through Virginia toward Fredericksburg and Williamsburg.

George Lee deeded the Maryland landing to John Laidler in 1760. Contemporary spellings varied, and George Washington's diaries refer to the crossing as Ledler's or Laidlaw's. On the Virginia side it was connected with Hooe's Ferry. Such changing names were common because travelers often identified a ferry by its current operator. The service carried people, horses, carriages, livestock, mail, and commercial goods, with schedules and safety shaped by tides, weather, ice, and the condition of the boat.

Washington knew the crossing from repeated travel between Mount Vernon, Tidewater plantations, and destinations farther south. The marker also points to Cedar Point, where his schooner ran aground in February 1766. On August 25, 1768, he recorded hauling a seine nearby in hopes of catching sheepshead and catching none. These modest diary entries are valuable because they present the Potomac not only as a boundary or strategic corridor but as a landscape of work, travel, fishing, and personal experience.

During the Revolution, crossings like Laidler's supported the movement of militia, couriers, supplies, officials, and intelligence. No major engagement is firmly tied to the landing, and its significance lies in mobility rather than battle. The new states depended on an inherited transportation network of ferries and taverns to connect local roads with military and political centers. Control of boats and landings could speed a message, delay a unit, or determine whether heavy wagons reached their destination.

The ferry also belonged to the Chesapeake plantation economy. Roads approaching the Potomac passed farms and estates whose production depended heavily on enslaved African American labor. Ferries connected those plantations to markets and government, and enslaved boatmen, laborers, and travelers were part of the traffic even when surviving records emphasize property owners and prominent passengers. A complete history therefore places Washington's documented visits within the broader labor and commerce that sustained the crossing.

A modern bridge has transformed the scale and speed of travel, leaving the old landing difficult to imagine. The marker restores the ferry to the visible landscape and preserves variant names that might otherwise disappear from maps. It is best read as evidence of an eighteenth-century transportation system: a small, privately operated facility with public importance. Laidler's Ferry made the Potomac passable for ordinary journeys and, in wartime, helped bind together the communications and logistics of the revolutionary Chesapeake.