Headquarters, Peekskill, 20th March, 1779.
SIR,
My late intelligence from New-York and headquarters clearly mark the enemy's intention to make a movement very soon. Whether it is intended against the grand army, these posts, or New-London, time only can determine. It is, however, our duty to be prepared. As a few days will open up his views, I imagine you do not think of quitting the ground when business is to be done. Should the enemy move up the river in force, his thieves will be very busy below. Colonel Hammond's regiment, on such an event, is to remain there; and one hundred rank and file of continental troops only are to keep them in countenance. The rest, under charge of officers, to be sent up to join their corps.
You know the state of forage at this post. I wish you would make an exertion to your left in front, to secure all you can for us; as much as will consist with the safety of your party, and covering to the rebels at Tarrytown. Send for Haynes and his assistant, and keep them on the ground till they secure all that is practicable to be got from your left. The weather has been so stormy and uncertain, the ——- are not yet sent for. To-morrow morning it will be done. Please to attend to the enclosed order respecting provisions. Late Learned's is moved to West Point.
Major Hull's, of the 19th, is this moment received, and will be attended to. I wish Captain Kearsley, Lieutenants Hunter and Lawrence, to be sent to their regiments when Colonel Burr has finished what he intends. They are much wanted. Note the contents of the enclosed resolve.
Yours, very respectfully,
ALEXANDER McDOUGALL.
It has been seen that Colonel Burr, while he commanded at White Plains, on the frontier, not only kept the adjacent country in a state of security, but that he kept the enemy in complete check. He was succeeded in his command by Colonel Littlefield, who was soon captured, and the post abandoned. Major Hull, in a letter to Colonel Burr, dated the 29th of May, 1779, says, "The ground you so long defended is now left to the depredations of the enemy, and our friends in distressing circumstances."
In the beginning of June, Sir Henry Clinton captured the forts at Stony Point and Verplanck's Point, and threatened West Point. His force in this direction was upwards of six thousand rank and file. The communication between General Washington, who was in New-Jersey, and General McDOUGALL, who was at Newburgh, was greatly embarrassed. Bandits were placed by the British in or near the passes through the chains of mountains leading to Sussex, for the purpose of capturing the expresses charged with despatches. At this critical moment Colonel Burr was on a visit to McDOUGALL, who informed him that he had made various unsuccessful attempts to communicate with Washington, and that his expresses had either been captured or had deserted. After apologizing to Burr, who was no longer in active service, the general stated the importance of the commander-in-chief's knowing the position and movements of the enemy, as well as the state of the American army. He then very courteously requested Burr to be the bearer of a verbal communication to Washington on the subject. To this, notwithstanding his ill health and the danger of the enterprise, he assented. The mission was undertaken and succeeded. He was also charged at the same time with verbal orders from General St. Clair, of a confidential character, to officers commanding at different posts.
To whom it may concern:—