Among the tragedies during the Revolutionary war, none seem more melancholy than those connected with efforts of the disaffected to escape to the enemy. During the winter of 1777–78, British agents were busy along the western frontier and as far east as Cumberland County, seeking to corrupt the frontier settlers, insinuating sentiments of discontent, assuring them that the American cause was sure to fail and making glittering promises of reward for those who should join the cause of the King.

One of the agents visited the valleys of the Allegheny Mountains in what is now Blair County, but then was a part of Bedford. He was successful in deluding a considerable band of ignorant frontiersmen by the most despicable methods.

This rascal held out to these mountaineers a vision of wholesale plunder and carnage on the property of their patriot neighbors. His appeals were made only to the vicious, who were promised if they would organize and join a force of British and Indians coming down the Allegheny Valley in the spring they would be permitted to participate in a general onslaught on the settlements and would receive their share of the pillage and, in addition to this, they should each receive grants for the lands of the rebel neighbors to the extent of 300 acres each, wherever they should select.

One of the men who entered into this despicable plot afterward confessed that it was the design to slaughter the peaceable inhabitants without mercy—men, women and children—and seize their property and lands.

In the northern part of Blair County is a deep valley called Sinking Spring Valley. It is still a wild and romantic country, but 150 years ago was singularly desolate and lonely and seemed a fitting place for the meeting of such conspirators as had been enlisted in this cruel Tory plot.

In Sinking Spring Valley the tory band held its gatherings during February and March, 1778. Many of the plotters were from the frontier settlement of Frankstown, near what is now Hollidaysburg. The leader was John Weston, a bold, lawless man, half farmer, half hunter, half civilized, who lived with his wife and brother, Richard, in a crude mountain cabin.

The British agent, having thoroughly enlisted Weston in the murderous enterprise, returned up the Allegheny, promising to be at Kittanning about the middle of April, with 300 Indians and white men, there to meet his mountain friends and with them swoop down on the other settlements, and make all of his partisans weary under the burden of their rich plunder.

Weston furthered the propaganda and enlisted thirty of his neighbors in the adventure. Alarming intelligence of the Tory plans leaked out, reached the larger settlement of Standing Stone, now Huntingdon, where it was reported that a thousand Indians and Tories were about to fall on the frontier.

A stockade had been built at Standing Stone, but its garrison never consisted of more than a score of green militiamen, and there was a general flight of the terrified people from the upper valley of the Juniata toward Carlisle and York.

The band of plotters was joined, about April 1, by a man named McKee, of Carlisle. He had been in communication with a British officer, who was confined in Carlisle, with other prisoners of war. He gave McKee a letter addressed to all British officers, vouching for the loyalty of McKee and his associates. This letter was to be used in securing protection and a welcome for the Sinking Spring Valley Tories when they should meet with the British and Indians on their flight to the Allegheny.