“The services of their father in repairing certain cannon”

Preserved Clap was born in Hadley, lived in the part of that town which became Amherst, and ultimately died at age eighty up the Connecticut River in Claremont, New Hampshire.

His headstone appears here courtesy of Find a Grave. His wife Eunice’s stone is nearby.

Clapp probably had earlier ties to that region. The Preserved Clap listed as serving in 1775 in a provincial company recruited largely from Bolton was said to come from Charlestown, New Hampshire, next to Claremont.

There’s also this curious anecdote related by Jaazaniah Crosby in his History of Charlestown in New Hampshire (1833):

On the 18th of June, 1756, while Lieut. Moses Willard was endeavoring to extinguish the fire, which had been kindled in his fence, he was attacked by the Indians, and killed behind the barn of the late Capt. John Willard, and near the academy. At the same time, his son Moses was wounded in the hip by a spear, which is said to have remained in the wound till after his retreat into the fort. It is further said that a Mr. Preserved Clap carried the same spear into the revolutionary war.

Preserved and Eunice Clap’s son Roswell was living in Claremont by 1790, per the first U.S. Census.

Dr. Clap’s children followed in his footsteps in at least one way: asking to be paid for his inventions during the Revolutionary War.

In 1837, the U.S. Senate took up “the petition of Roswell Clapp and Charlotte Reed, children and heirs of Preserved Clapp, praying compensation for the services of their father in repairing certain cannon belonging to the United States.” That referred to work sixty-one years before, just after the siege of Boston.

And the Clap family kept up that plea until 1841, thirty years after the doctor had died.

“Acquainted with the conduct of Doctor Preserved Clap”

I lose track of Dr. Preserved Clap after 1776 until 5 Feb 1781, when the Continental Congress referred a petition from him to its board of war.

On 20 February, board members Richard Peters of Pennsylvania and Ezekiel Cornell of Rhode Island met and formulated a response to that petition:

The Board having considered the reference with which they were honored on the memorial of Preserved Clap, beg leave to observe, That it appears from his memorial and General [Henry] Knox’s letter that he hath been with the Army as a volunteer for eighteen months without pay or any emolument.

That it farther appears by General [Benjamin] Lincolns and Knox’s letters that Mr Clap was sole inventor of stocking the Cannon that were supposed to be rendered useless by the enemy at Boston, and in the vicinity, in the spring of 1776; from which the Continent at large received a real benefit; for which he received no emolument but barely day wages.

From the foregoing state of facts it may be proper for Congress to resolve,

Resolved, That the supreme executive of the State of Massachusetts examine into the merit and services of Preserved Clap, and order payment on the account of the United States, for such sum as they think he may justly deserve; provided it shall not exceed one thousand dollars in bills of the new emissions:

That Preserved Clap be informed, that Congress cannot employ him in public service, consistent with their arrangements.

The Congress approved that response the next day. Clap’s petition, which might include the letters from Knox and Lincoln, is preserved in the Congress’s files but not published.

There is, however, a second published letter from Henry Knox on the doctor. On 13 March, Gen. John Sullivan wrote to Knox about him, and on 22 March the artillery commander replied:

I received your favor of the 13th instant, requesting a certificate from me, & such of my officers who were best acquainted with the conduct of Doctor Preserved Clap, & how he employed himself in the Army.

The result of my knowledge & information is that the said Preserved has great mechanical abilities, & that he joined himself to the Army in ’79, as a volunteer, ready to do any kind of work in his power, either for officers or soldiers, sometimes with & sometimes without pay.

When the Continental troops were principally withdrawn from West Point last August, the Doctor attached himself to the Post, but he declined to the best of my remembrance to be enrolled as an artificer, & apply himself to public work entirely.

Sometime in November he applied to me for a letter to Mr. Hodgson [Samuel Hodgdon, shown above], D[eputy].C[ommissary].G[eneral].M[ilitary]. Stores, the intent of which he informed was to procure assistance or permission to work with the artificers’ tools at Philadelphia to execute some design of a machine to destroy shipping, which he intended to present to Congress or the Board of War.

But I had not the least idea of his intending to claim pay for the time he had been with the army.

This looks like the second time Dr. Clap threw himself into devising equipment for the army without arranging an official rank or contract, and without discussing pay. Not the wisest way to operate, especially when good money was scarce.

The Congress referred Clap’s case to Massachusetts, where the “supreme executive” was now Gov. John Hancock. The state archives might therefore contain more sources on Dr. Clap. However, I’ve found no evidence of pay for him on either state or national level.

TOMORROW: Last traces.

“The consideration of the Petition of Preserved Clap”

In the spring of 1776, Dr. Preserved Clap was forty-five years old. He had a wife and young children back in Amherst. And in Boston he was being hailed as a “Genius” for his idea of how to put damaged cannon back to work. So he stayed.

Though he used the title ”Doctor” and was identified by the Rev. Samuel Cooper as “a Country Surgeon,” I haven’t come across any example of Clap performing medicine. But he threw himself into mechanical tasks.

The authorities put Clap in charge of a team to salvage as many of the artillery pieces the British left behind as they could. Those men appear to have worked into the summer, and then Clap petitioned the Massachusetts General Court for pay.

On 16 September that legislature put into its record:

MEMORIAL of PRESERVED CLAP Overseer. of the Men employed in opening, and stocking the Cannon at Boston, and Castle William.
setting forth
That he and the Men attended that service, for the term of Time specified, for which he, nor they have received any pay therefore the memorialist prays, that the Honorable Court would give him an Order upon the Treasurer for the State aforesaid for the Amount of his Account. or otherwise relieve him as shall seem meet.

The Committee to whom was referr’d the consideration of the Petition of Preserved Clap, have attended that Service, and beg leave to Report by way of Resolve.

several other Accounts exclusive of said Clap’s accompanying this petition, the Committee did not take into consideration as said Clap had no orders to receive the amount of the same,

said Committee do not know of any further service for said Clap.

Resolved that there be paid out of the Publick Treasury of this state to Preserved Clap Forty Three Pound one shilling & Tenpence in full for his within account

and whereas Said Clap Says that he has envented a machine for Boreing Cannon, which may be improved to the grate advantage of this State, therefore

Resolved, That if Said Clap will exhibet a Plan, or Modle of Said Machine, to Hugh orr Esqr and others, a Comtee. for Casting Large Cannon So as to Satisfy them of its Superior utility, upon their report thereof to this Court there Shall then be granted to him Such a Sum for his envention as may appear to be adequate to its Superior usefulness.

Hugh Orr (1715–1798) had come to Massachusetts from Scotland in 1737, settling in Bridgewater after a couple of years. There he built a forge and the first known trip-hammer in British America. Though Orr’s main product was farming implements, at times of war he shifted his works toward making weapons, including muskets in 1748.

In 1776, Orr was representing Bridgewater in the General Court and working to set up a cannon manufactory. Naturally, the legislature set Dr. Clap to him. However, there’s no evidence anything came of that.

Two months later, on 14 November, the Independent Chronicle newspaper ran this notice:

BOSTON, November 11, 1776.

THIS may certify, that Doctor Preserved Clap, has opened the cannon at Castle-William that were spiked up by the enemy; and is the real inventor of a carriage, whereby the cannon that had their trunnions broken off, by this new invented carriage the guns are rendered serviceable, which otherwise would have been useless.

Attest, RICH. GRIDLEY, Chief Engineer.

I looked to see if there was any competing claim to have invented that method of mounting guns in 1776, but I couldn’t find one. Dr. Clap really wanted public credit for his ideas.

TOMORROW: Making a national case.

A Long Line of Preserved Claps

Dr. Preserved Clap, the man who stepped forward to render Boston’s broken cannon useful again in the spring of 1776, came from a long line of Preserved Claps.

According to The Clapp Memorial (1876), the doctor’s ancestors Roger Clapp and Joanna Ford arrived in Massachusetts in 1630, settling in Dorchester.

(This genealogy preferred the spelling “Clapp,” even changing how the name appeared in the period sources it quoted.)

Those Clapps named their first children Samuel, William, and Elizabeth, but then went full Puritan for most of the rest: Experience, Waitstill, Preserved, Hopestill, Thanks, Desire, Thomas, Unite, and Supply.

Preserved Clapp (1643–1720) moved to Northampton and had a son named Preserved Clapp (1675–1757), who likewise had a son named Preserved Clapp (1705–1758). That last man moved to Hadley. He married Sarah West in August 1730, and they had their first son the following May: Preserved Clap (1731–1811).

Histories of Northfield and Deerfield say that in the fall of 1754 our Preserved Clap was in charge of a small force—nine or ten men—guarding the settlement of Huntstown, now Ashfield.

The genealogy above didn’t have this information, but more recent researchers have found that in 1756 this Preserved Clapp married Eunice Atherton of Lancaster, and they started having children by 1760. His name appears a couple of times in the Amherst town records in the following decade.

On 1 Jan 1770 the Connecticut Courant of Hartford ran this notice:

CLOCKS and Watches made in the best Manner, by
PRESERVED CLAP
of Amherst.

Likewise all Kinds of Instruments in Surgery.

That’s the first surviving sign that the latest Preserved Clap had ambitions to be more than a country farmer.

The Colonial Society of Massachusetts published the image of a clockface above in an article about the engraver Thomas Johnston (1708–1767). At the top it says: “Preserved Clapp / New England.”

Did Clap order this plate from Johnston for a clock he planned to build, or for one he planned to own? And did he pay for it? Johnston kept that sheet of copper and used the other side to engrave a musical score for his publication of Daniel Bayley’s A New and Compleat Introduction to the Grounds and Rules of Musick (Boston, 1766).

Massachusetts Soldiers and Sailors of the Revolutionary War records that in 1775 a man named Preserved Clap served a few months as a private in the company of Capt. Benjamin Hastings of Bolton. I haven’t found anyone else named Preserved Clap of military age at the time. But it seems unusual for a forty-three-year-old man with military experience, social ambition, and some connection to medicine to serve in the ranks. In any event, Hastings’s company saw action at Bunker Hill.

The next time Preserved Clap surfaces in the records I’ve found is the Rev. Dr. Samuel Cooper’s 29 Apr 1776 letter to Samuel Adams, which refers to him as “a Country Surgeon in our Army.” By this time he was evidently using those “Instruments in Surgery,” not just making them. However, I haven’t found any record of Clap being surgeon for a Continental regiment. Perhaps he had taken that role in one of the militia regiments that Massachusetts raised in early 1776.

TOMORROW: Claiming credit.

“A Genius has appear’d lately”

In his 29 Apr 1776 letter to Samuel Adams, the Rev. Dr. Samuel Cooper described the man who came forward with a solution for cannon with damaged trunnions:

It was judg’d by…all here, at first, that they could never again be made useful: But a Genius has appear’d lately, a Country Surgeon in our Army, an obscure Man till now, who has hit upon a Method of mounting them, without Trunnions, so as to render them it is tho’t, serviceable as ever.

I can only give you some general imperfect Idea of this Method. He first sinks the Cannon to its Centre, in a strong wooden Sock, like the Barrell of a Musket in it’s Stock: He braces it with three iron Clasps to prevent it’s leaping out of this Stock; and yet so as not to obstruct any Movement necessary to it’s use.

The Cannon in this wooden Bed, is mounted on a Carriage, and by rounding the lower side of the latter like the Foot of a rocking Cradle, Provision is made for the Elivation & Depression of the Cannon.

He has compleated one or two already in this Manner; and if Experience proves it, to be, what some good Judges have already pronounc’d it, the Invention will do Honor to our Country & ought to be immortalise the Name of the Man, which is Clap.

It will give us an hundred fine Cannon for the Defence of our Harbor, which a few Days ago were given up as entirely useless.

To my surprise, I find that this is the first time in more than twenty years that Boston 1775 has mentioned Dr. Preserved Clap.

Dr. Clap did make a short appearance in The Road to Concord, in which I posited that his method was how the New Englanders mounted damaged artillery pieces in 1775.

In Old Landmarks and Historic Fields of Middlesex (1895), Samuel A. Drake included this picture, saying it showed Dr. Clap’s carriage as drawn “by an officer of artillery present at the siege.” I haven’t located that original drawing or the officer’s name.

Cooper’s letter is the earliest mention of Dr. Clap and his invention that I’ve found, as well as the most detailed description of it. The wording suggests that Clap came forward with his method only in the spring of  1776, not during the siege. And Cooper’s description really doesn’t match the drawing. So I have questions.

TOMORROW: Who was Preserved Clap?