Thomas Machin on the Firing at Lexington

On 9 August 1775, Jedediah Preble (1707–1784, shown here) was visiting Cambridge.

A veteran of the wars against the French, he had been the Massachusetts Provincial Congress’s first choice to command its forces back in October 1774, but turned down the job on account of his age and health.

During that visit Preble wrote in his diary: “This morning met with a man that deserted from the regulars this day fortnight, as sensible and intelligent a fellow as I ever met with.”

A fortnight, or fourteen days, before was 27 July. There was one man who deserted from Boston around that date, remained with the Continentals, and was praised for his intelligence by men on both sides: Thomas Machin, captain in the American artillery from 1776. So I believe Preble recorded the former private Machin’s observations on the start of the war.

Preble wrote:

He was at Lexington fight. He says he came out with Lord Percy, and that he asked a young fellow of his acquaintance who fired first.

The soldiers when they first came where the Provincials were, one of them flasht his piece, on which a regular officer fired and swung his gun over his head, and then there was a general fire. They had 75 killed and missing, 233 wounded.

Alas, the antecedent for “one of them” is ambiguous: “soldiers” or “Provincials”?

Machin’s informant certainly blamed some “regular officer” for aggravating the situation. On the other hand, this version of events doesn’t have Maj. John Pitcairn or other officers ordering the redcoats to fire, which became the official provincial line soon after the battle.

There are further considerations. Machin’s information was secondhand, and he may have felt pressure to tell Americans what he thought they wanted to hear. Nonetheless, these comments ring true as a British enlisted man’s perspective: What did officers expect their soldiers to do when one of them was firing his gun and waving it around?

Preble went on:

He was also at Bunker’s Hill, where there was killed and died of their wounds 700, and 357 wounded that recovered. He took the account from Gen’l Robinson [actually James Robertson]. He says before he came out there died eight men of a-day, one day with another, and that they could not muster more than 6000 men.

Again, we know from Gen. George Washington’s files that Machin had brought out those casualty figures, as well as drawings of the British fortifications. He must have planned his desertion carefully.

The Truth about Thomas Machin

I’ve been discussing the early life of Thomas Machin, commissioned a lieutenant in the Continental Army artillery on 18 Jan 1776. But what had he been doing before then?

His family left an account that had Machin born to a distinguished British scientist, working for a duke, coming to America in 1772, and quickly joining the movement that led to independence. But there’s no evidence for any of that, and strong evidence against it.

And then there’s this 27 July 1775 entry from the journal of Lt. Richard Williams of His Majesty’s 23rd Regiment of Foot:

Last night Thos. Machin, soldier in our Regt. deserted when sentry on the fire boat in the river near the neck. he went off in the Canoe go to this float, he took the other man’s firelock with him, as it was that man’s turn to lay down, this fellow will give them good intelligence of our Works, for he was a pretty good Mechenik & knew a little of fortification. he invented a new carriage for guns on a pivot &c. his books & instruments were sent for to the General’s.

Lt. Col. Stephen Kemble also noted the desertion that night of a man from the 23rd, “a sensible intelligent fellow, some knowledge of fortification and Gunnery.”

The 23rd Regiment’s muster rolls record that Thomas Machin had enlisted in Maj. Harry Blunt’s company on 17 Feb 1773 and sailed to New York that spring. The regiment arrived in Boston in August 1774. Machin was thus in the army during the Battle of Bunker Hill—but in the British army.

Several people on the American side noted Machin’s arrival, though most didn’t record his name. Col. William T. Miller of Rhode Island wrote on 29 July that “it is thought [he] will prove a very serviceable man to our army, as he is able to give a plan of all the works and fortifications in Boston, and knows all their plans.” The old veteran Jedidiah Preble said he was “as sensible intelligent a fellow as I ever met with.”

Most important, Gen. George Washington wrote down “An Acct. of the Killed & Wounded in the Ministerial Army” based on a conversation with a man he recorded as “John Machin.” The commander-in-chief assigned the deserter to work with his young aide-de-camp, John Trumbull, to draw plans of the British fortifications. (One product of their collaboration appears above.) Later Machin worked for quartermaster general Thomas Mifflin and was most likely a scout during an 8 Jan 1776 raid on British positions at Charlestown.

Machin’s entry in American National Biography says nothing about that activity, accepting the family story of a genteel life in England and a respectable arrival in America. But Machin was a British army private, a deserter, and part of “Washington’s First Spy Ring” during the siege of Boston. I’ll divulge more secrets of the general’s early intelligence efforts this afternoon in Lincoln at an event sponsored by the Friends of Minute Man National Park.

(Thanks to Bob Vogler for posting the quote from Lt. Williams’s diary above to the Revlist in 2002. That sent me hunting for the elusive Thomas Machin.)