Now to look at the military situation. Already John Thomas, a physician of Kingston, had been made second in command under Ward; and Richard Gridley, an old Louisbourg artilleryman, had been made chief engineer. As yet the New England colonies were the only ones which had sent their armed men to the scene. The Massachusetts men had taken post mostly at Cambridge, near the college; and here, as the days went on, came also a Connecticut regiment under Israel Putnam, who had left his plough in its furrow. So, as June began, there had assembled on this side of Boston between seven and eight thousand men, eager, but poorly equipped, and with a small supply of powder. On the Roxbury side, fronting the British lines on Boston Neck, there were about four thousand Massachusetts men, under John Thomas, supported by a camp a little farther out, at Jamaica Plain, to which Joseph Spencer had come with another Connecticut regiment, and Nathanael Greene, with a body of Rhode Islanders. Thomas had some field-pieces and a few heavy cannon, and his force constituted the army's right wing. Its left wing was upon the Mystick at Medford, and near Charlestown Neck, and here were the New Hampshire men, and among their officers the old Indian fighter, John Stark, was conspicuous. Three companies of Massachusetts men constituted the extreme left at Chelsea. So, as the summer came on, perhaps about 16,000 men in all were encamped as a fragile army besieging Boston. General Ward exercised by sufferance a superior authority over all, though as yet no colony but New Hampshire had instructed its troops to yield him obedience. As Massachusetts claimed three quarters of the entire force thus drawn together, the assumption of chief command by her first officer was natural enough in a common cause.

The force which this sixteen thousand loosely organized men dared to hold imprisoned in Boston was a well-compacted army of somewhere from five to ten thousand men, for it is difficult amid conflicting reports to determine confidently a fixed number. On the 25th of May Gage had been joined by a reinforcement, accompanied by three other general officers,—Burgoyne, Clinton, and Howe.

The council of war at Cambridge was meanwhile directing new works to be constructed, strengthening and stretching their lines of circumvallation. Its opinions were divided on the question of occupying so exposed a position as the most prominent eminence on the peninsula of Charlestown, the defence of which might bring on a general engagement, which their stock of powder could not support. On the 13th of June the American commanders had secretly learned that Gage intended on the 18th to take possession of Dorchester Heights, the present South Boston. There was but one counter-move to make, and that was to seize in anticipation the summit of the ridgy height which began at Charlestown Neck and extended, in varying outline, to the seaward end of the peninsula,—an eminence known as Bunker Hill. On the 16th of June, a council of war, held in the house near Cambridge common, known then as the Hastings and later as the Holmes House,[405] decided, upon the recommendation of the Committee of Safety, to occupy Bunker Hill at once.

ORDER OF THE COMMITTEE OF SAFETY.

This has before appeared in G. A. Coolidge's Brochure of Bunker Hill, 1875.

That evening about 1,200 men, of whom 200 were from Connecticut under Thomas Knowlton, the whole being under the command of Colonel William Prescott, first listened to a prayer of the president of the college, and then marched, with their intrenching tools, in the darkness, to Charlestown Neck.

Here the purpose was for the first time disclosed to the men. They resumed their march, going up the slope of the hill before them, while Nutting's company and a few Connecticut men were sent along the shore opposite Boston, to patrol it. The highest summit of the hill was the one first reached; but, after a consultation, it was decided to proceed to a lower one, more nearly before Boston. Here Richard Gridley marked out a redoubt, and at midnight the men took their spades and began to throw up the breastworks. Putnam, who seems to have accompanied Prescott, now returned to Cambridge, and while the men worked busily, Prescott sent an additional patrol to the river, and twice went down himself, to be satisfied, as he heard the "All's well" of the watch on the men-of-war moored opposite, that no noise of the intrenching tools had reached the enemy. Soon after the first glimmer of dawn on the 17th, the sailors on the ships discovered the embankments, now about six feet high, when one of the vessels, the "Lively", at once opened fire upon them. This lasted only till Admiral Graves could send orders to cease, but was shortly renewed from the ships and from the batteries on Copp's Hill, in Boston, as soon as the British generals comprehended the situation. Prescott's men meanwhile kept at their work. One man was soon killed by a cannon-ball. The commander and others walked the parapet, encouraging their men, and Willard, one of the councillors who stood by Gage as they surveyed the hill through their glasses, recognized the Pepperell colonel, and told the British general what sort of man he had got to encounter. A promise had been given to Prescott that in the morning a relief and refreshments would be sent from Cambridge; but nothing came to the hungry men, as they still worked. Ward, who heard the firing, yielded to Putnam's persuasion to send reinforcement, only so far as to despatch a part of Stark's regiment, for he feared that Gage would seem to prepare to assault in Charlestown, while his intention might be to attack in Cambridge. Finally, about ten o'clock, Major John Brooks[406] reached headquarters with a request from Prescott for help and food. Richard Devens pressed Ward to comply, and at eleven the rest of the New Hampshire men were ordered to march.