In all this convergence of the militia toward Boston, there was one side current. This set toward Marshfield, where for some weeks had been a detachment of regulars. During this time there had been peace in the town but strong feeling on both sides—Marshfield had already produced a general for the king, and now was about to give one to the provincials. There had been one or two threatening demonstrations from neighboring towns, which now were repeated in earnest. On hearing the news from Lexington and Concord, the militia of the neighborhood gathered for an attack on the regulars. But they came too late. The British were embarking at Brant Rock, hastened by the signal guns of the Marshfield men from a neighboring hill. Yet though the regulars got safely away, they left behind them the three hundred muskets with which the Tory militia had drilled, and which presently formed a part of the equipment of the Whigs before Boston. That equipment, while most irregular, was not to be despised. By the 22d a strong army covered all land approach to Gage, who began to consider himself between two fires.

"The regulars encamped," says one British account of the Concord expedition, "on a place called Bunker's Hill."[75] There, under the guns of the fleet, the tired troops found safety; and there, for all that any one can see, it would have been wise of Gage to leave them. With Bunker Hill at his command, and with Dorchester Heights once occupied by his forces, Boston would be safe from all attack by the Americans—and not till then.

But on the next morning Gage withdrew the troops to Boston. As a matter of fact, he doubted his own strength, and greatly exaggerated the power of the rebels, since his first sensation was a dread lest the town should rise at his back, and his army be destroyed. Of this there was no real chance at any time. Yet he drew in his men in order to make himself secure, and began with the selectmen negotiations looking to his safety.

There were many in the town who were eager to leave it, and many outside anxious to come in. The governor made the rule that for the purpose of taking out family effects but thirty wagons might enter the town at a time. The ruling drew from Warren the following very characteristic letter.

Cambridge, April 20, 1775.

Sir:—The unhappy situation into which this colony is thrown gives the greatest uneasiness to every man who regards the welfare of the empire, or feels for the distresses of his fellow-men: but even now much may be done to alleviate those misfortunes which cannot be entirely remedied; and I think it of the utmost importance to us, that our conduct be such as that the contending parties may entirely rely upon the honor and integrity of each other for the punctual performance of any agreement that shall be made between them. Your Excellency, I believe, knows very well the part I have taken in public affairs: I ever scorned disguise. I think I have done my duty: some will think otherwise; but be assured, sir, as far as my influence goes, everything which can reasonably be required of us to do shall be done, and everything promised shall be religiously performed. I should now be very glad to know from you, sir, how many days you desire may be allowed for such as desire to remove to Boston with their effects, and what time you will allow the people in Boston for their removal. When I have received that information, I will repair to congress, and hasten, as far as I am able, the issuing a proclamation. I beg leave to suggest, that the condition of admitting only thirty wagons at a time into the town appears to me to be very inconvenient, and will prevent the good effects of a proclamation intended to be issued for encouraging all wagoners to assist in removing the effects from Boston with all possible speed. If Your Excellency will be pleased to take the matter into consideration, and favor me, as soon as may be, with an answer, it will lay me under a great obligation, as it so nearly concerns the welfare of my friends in Boston. I have many things which I wish to say to Your Excellency, and most sincerely wish that I had broken through the formalities which I thought due to your rank, and freely told you all I knew or thought of public affairs; and I must ever confess, whatever may be the event, that you generously gave me such opening, as I now think I ought to have embraced: but the true cause of my not doing it was the vileness and treachery of many persons around you, who, I supposed, had gained your entire confidence.

I am, &c.,

Joseph Warren.

His Excellency General Gage.[76]

In striking contrast to the manly regret expressed by Warren in this letter is the scene enacted that afternoon at Cambridge, where the Committee of Safety met. Doctor Benjamin Church, one of the trusted leaders of the Whigs, an orator on the Massacre, and a pamphleteer, was a member of the committee, for which Warren had recently engaged Paul Revere as messenger. Revere writes, in the letter already quoted: "I was sitting with some, or near all that committee, in their room ... in Cambridge. Dr. Church, all at once, started up. 'Dr. Warren,' said he, 'I am determined to go into Boston to-morrow.' (It set them all a-staring.) Dr. Warren replied: 'Are you serious, Dr. Church? They will hang you if they catch you in Boston.' He replied: 'I am serious, and am determined to go at all adventures.' After a considerable conversation, Dr. Warren said: 'If you are determined, let us make some business for you.' They agreed that he should go and get medicine for their and our wounded officers."[77]

Church was the first American traitor. Although possessed of all the Whig secrets, he had for some months, perhaps longer, been in communication with Gage. His journey to town was for the purpose of delivering information, and for some time yet he managed to carry on the double rôle. Nevertheless his information, put in the hands of Gage, did no harm. It throws but one more light upon the incompetence of the general that, with such information as Church now gave him, he blundered so continually.