John Andrews, Esq., Judge of the court of Vice Admiralty within the Colony of Rhode Island; Mr. Arthur Fenner, Clerk in the Supreme Court in the county of Providence; Messrs. John Cole, George Brown, and Daniel Hitchcock, Attorneys at Law in the town of Providence; James Sabin, Vintner in the town of Providence.

It is the desire of Admiral Montagu that the above named persons may be summoned and examined before the commissioners relative to the assembling of people in the town of Providence, in the evening of the 9th of June last as a measure necessary towards the discovery of the persons concerned in the burning his Majesty's schooner the Gaspee.

On the 9th day of June last at night I was employed at my house attending company, which were John Andrews, Esq., Judge of the court of Admiralty, John Cole, Esq., Mr. Hitchcock, and George Brown, who supped at my house and stayed there until two of the clock in the morning following; and I have not any knowledge relative to the matter on which I am summoned; which I am ready to make oath to before any Justice of the Peace.

The Admiral also delivered to the commissioners, a list of persons who reside in Providence as material witnesses relative to the assembling of the people prior to the attacking the Gaspee, in consequence of which they ordered a summons to be issued for John Andrews, Esq., John Cole, Esq., Daniel Hitchcock, Esq., and George Brown, Attorneys at Law, and Arthur Fenner and James Sabin, to attend on Wednesday next at 11 o'clock, which was issued accordingly. The summonses were delivered to Samuel dark, who was sent as express by the commissioners at 20 minutes after 3 o'clock.

From: <http://www.gaspee.org/StaplesGaspee.htm> p. 72

EAST GREENWICH, Jan. 20, 1773.

May it please your Honors:—Late last night I had a citation from Providence to appear before you this day at 11 o'clock in the forenoon, to give evidence with regard to the burning the schooner Gaspee; and as I detest all such open violations of the law, should have been willing to have waited upon your honors to let you know every thing within the compass of my knowledge relative to that matter, had not my engagements at Kent Court, in this place, absolutely forbid my attendance; and therefore hope your honors will pardon me on that account; but every thing I know touching that matter I am ready to relate. It has been, may it please your honors, a long custom in this Colony, for the attorneys the concluding of filing of pleas for court, to meet some where together and spend the evening; that night the schooner was burnt happened to be the concluding evening. We met at Mr. Sabin's, by ourselves, and about 8 o'clock I went to the door, or, finally, kitchen, and saw a number of people in the street, but paid no attention to them, as that place was a place of public resort. Some time after 9 o'clock I heard a drum beat, and was asked by some body in the room, what was the occasion of the beating of that drum; and it was answered by somebody, that it was beat by some boys, which quieted all further inquiry by me; neither did I imagine that any thing of that nature was about being perpetrated, till after it was in fact done. This, may it please your honors, is every thing that I know, or has come to my knowledge, relative to that transaction, and which I am willing, on solemn oath, to state before any of the civil authority in Providence, to which place I shall in a day or two return.

I am your Honors most obedient humble servant,

D. HITCHCOCK.

The Admiral also delivered to the commissioners, a list of persons who reside in Providence as material witnesses relative to the assembling of the people prior to the attacking the Gaspee, in consequence of which they ordered a summons to be issued for John Andrews, Esq., John Cole, Esq., Daniel Hitchcock, Esq., and George Brown, Attorneys at Law, and Arthur Fenner and James Sabin, to attend on Wednesday next at 11 o'clock, which was issued accordingly. The summonses were delivered to Samuel Dark, who was sent as express by the commissioners at 20 minutes after 3 o'clock.

John Cole, Daniel Hitchcock, and George Brown (were) three Providence lawyers who were alleged to have taken part in the Gaspee affair, or to have information about it. They claimed that they could not leave East Greenwich, where they were involved in court sessions, to testify before the Commission. They all signed depositions denying any significant knowledge, but later Brown and Cole did appear in person to say essentially the same thing.

The absence of the key witnesses highlighted this session of the inquiry. Arthur Fenner and John Andrews pleaded ill health, and George Brown, John Cole, and Daniel Hitchcock the press of business. Hitchcock and Cole apparently collaborated on their testimony concerning events in Sabin Tavern the night of the raid. One day before, Brown, Cole, and Hitchcock had told Hopkins that they intended to refuse to appear before the commissioners, presumably on the advice they had received earlier from Sam Adams. Adams had challenged the jurisdiction of the commissioners, but Hopkins obviously convinced them to move away from this kind of direct challenge and to submit written depositions instead. Misrepresentation, intimidation, and evasion are all evident here in this first session.

It is too curious that Daniel Hitchcock and his group of fellow attorneys, Andrews, Cole, and Brown, denied any foreknowledge of the attack on the Gaspee, particularly when such a large meeting of angry men had gathered at the same inn that night to plan the Gaspee's destruction. We can only conclude that Hitchcock's testimony was obviously false.  He stalled having to give testimony before the Commision in January. By June all four lawyers had time to collaborate and practice their false charade. In either event, Hitchcock was well heralded for his refusal to cooperate with the Commission. The 12June1773 edition of the Providence Gazette reported that at a meeting of the Providence Town Council:

We therefore present Daniel Hitchcock as an unindicted co-conspiritor in the Gaspee Affair, guilty of obstruction of justice at the very least. In doing this, we acknowledge him as a patriot to the cause of American independence.

From the RI Historical Cemeteries Database, we have no candidates, which we expect since he died in New Jersey.

From www.whipple.org likewise comes up empty.

We found a short biography of Daniel Hitchcock on page 696 in Biographical Sketches of the Graduates of Yale College with Annals of the College History By Franklin Bowditch Dexter (1896).  After graduating from Yale in 1761 he studied law in Northampton. MA and remained in law practice there until 1771. Daniel's first cousin was the Rev. Enos Hitchcock of Providence, and it is quite possible that this relation induced him to settle in Providence, RI to practice law.  

According to an ad in the Providence Gazette 8December1770, Daniel Hitchcock announced the opening his law office in the house of Dr. Amos Throop. From: "Extracts from the Journal of William Jennison, Jr., Lieutenant of Marines in the Continental Navy." The Pennsylvania Magazine of History and Biography, Vol. 15, No. 1 (1891), pp. 101-10, the recent Harvard grad William Jennison studied law under Daniel Hitchcock in Providence from 1774 until Lexington Alarm in April 1775.  The Providence Gazette of 20Aug1774 noted in an ad that the former office of Daniel Hitchock, Esq had become a mirror shop in Providence. In the 20May1775 edition Hitchcock advertised that he would be taking a leave of absence, and that his law practice would be assumed by his partner, William Mumford, Esq.  Hmmmm--This Mumford guy was the same guy that purposely served a Gaspee Commission subpoena on the wrong Arthur Fenner back in 1773, frustrating the inquiry by the British.  In either event, this happenings may have reflected the chronic disease from which Daniel Hitchcok was suffering. He had the occasion to correspond with fellow lawyer (and patriot) John Adams, 3Aug1776, Letters of Delegates of Congress, 1774-1789, ed. by Paul H. Smith.

Col. Daniel Hitchcock's passing was noted in a brief paragraph in the Providence Gazette 25Jan1777, and his estate notice was published in March.  One-half of his estate was given to the Benevolent Congregational Society of Providence. 

In December 1774 Hitchcock was appointed by the RI Assembly to a committee to revise the military laws within the Colony. According to Bayles, Richard M. History of Providence County, Rhode Island, New York, 1891, p369, Daniel Hitchcock was appointed Lieutenant Colonel and vice commander of the United Train of Artillery from Providence  in April 1775, and joined up with Washington's army at Cambridge under the command of Gen. Nathanael Greene.  In the 9November1776 Providence Gazette announced that the State Assembly had appointed Daniel Hitcock, Esq., Colonel of the 2nd Battalion. We do get this interesting snippet from "An Historical Sketch of The Town of Scituate, R.I.; Part 4":

Lieut.-Col. Ezekiel Cornell, of Col. Hitchcock's regiment, Providence, writes to Major Knight, dated Warwick, July 20, 1777, informing that he has just received an express telling him that forty sail of square-rigged vessels were off Watch Point standing towards Newport, last evening; also, desiring me to send an express to Col. Colwell, which I have done, ordering him immediately to warn the militia to be in readiness.

This regiment was raised in May, 1775, in the county of Providence, R. I., as the 2nd regiment of the Army of Observation of Rhode Island, which was formed into one brigade under Brigadier General Nathaniel Greene, consisting of three infantry regiments and a train of artillery. Over one thousand men of this Army in the same formation joined the American Army before Boston in 1775, as the Rhode Island quota at the call of Massachusetts for men from the rest of the New England colonies. The regiment was commanded by Colonel Daniel Hitchcock, and was numbered the 14th Foot. In the reorganization of the Continental Army, January 1, 1776, it became the 11th Continental Infantry. After the death of Colonel Hitchcock, January 13, 1777, it was commanded by Colonel Israel Angell, and was known as the 2nd Rhode Island Regiment, of the Rhode Island Line. On January 1, 1781, the 1st and 2nd Rhode Island regiments were consolidated, and commanded by Lt. Colonel Jeremiah Olney for the rest of the war. The regiment was present with Washington in all the principal battles of the war.

Reacting to the news of the Battle of Lexington and Concord in April 1775, the Rhode Island General Assembly voted to form an Army of Observation. Opposed to this action was Governor Joseph Wanton, a Tory who was removed from office and replaced by Nicholas Cooke, an ardent patriot. One of three Battalions of this Army was commanded by Colonel Daniel Hitchcock, a 35 year old lawyer. Twenty-three year old Stephen Olney served as Ensign.

By May 1775 Hitchcock's Battalion was raised, equipped and marched for Boston in the Brigade of Rhode Island's General Nathaniel Greene. In June all the Rhode Island troops were taken into Continental pay and service under General George Washington of Virginia. In this reorganization Hitchcock's Battalion was renamed the 14th Battalion of Foot.

The 14th Foot was fired upon during the Battle of Breed's Hill in June but did not actively take part in the fight. Little is known of the appearance of these men but we do know they were better equipped than most and had a complete camp with tents and accoutrements based on the British style.

During September several men of the 14th Foot volunteered for the ill-fated Arnold expeditionary battalion going to Quebec. Following a long and arduous march, the battalion attacked on December 31th. Some of the men were killed and the rest were captured.

Meanwhile in Boston on December 1st the men of the 14th Foot, Hitchcock's Battalion, volunteered to serve an additional 30 days. At the end of the month the enlistments expired and the unit dissolved.

On January 1st remnants of Hichcock's old unit and other battalions enlisted for one year and formed the 11th Continental Regiment. Daniel Hitchcock remained as colonel and Stephen Olney was promoted to lieutenant. Following the evacuation of Boston by the British in April, the 11th, as part of Gen. Nathaniel Greene's brigade, marched for New York where they built earthworks on Long Island.

The 11th Continentals were beaten at Long Island in August at which time 34 year old Nathaniel Greene was promoted to major general. In September the 11th held off the British at Harlem Heights and was narrowly defeated at White Plains in October. The fall was spent retreating through New Jersey.

Much of the tenting and supplies were lost at the various battles and at the capture of Fort Lee. Uniforms were tattered and supplies of clothing or equipage were nonexistent. Upon the arrival at Trenton the 11th prepared for the Crossing of the Delaware River on Christmas Day. The Regiment never did cross the river or take part in the subsequent battle due to difficulties in transporting the artillery. On December 31st the men volunteered to serve one additional month.

The 11th had a major part in the Second Battle of Trenton on January 2nd. That night the man marched for Princeton, New Jersey. In the moring the American column, led by militia, attacked the British. The militia broke and ran through Hitchcock's brigade. Israel Angell, who was in command, reformed the Regiment, advanced 100 yards, fired several volleys and charged the british line.

Following the battle, General Washington told Hitchcock how proud he was of his conduct and that of his troops and asked that the word be passed down to the men. A few days later Col. Hitchcock succumbed to exposure. With the enlistment expired the men and officers returned to Rhode Island.

Greene's staff included a brigade adjutant and a brigade commissary responsible for logistics. The troops formed three regiments (two with eight companies and one with seven) and a company of artillery. Greene, Cooke, and the Committee of Safety arranged the officers; since all commissions were dated 8 May, seniority was resolved by drawing lots. The three regiments rotated posts of honor to avoid establishing a system of precedence. One regiment was raised in Bristol and Newport Counties by Thomas Church; another was raised by Daniel Hitchcock in Providence County. A business associate of Greene's, James Mitchell Varnum, was given command of the regiment from King's and Kent counties, while John Crane, formerly of Boston, became captain of the artillery company.

Companies left for Boston as quickly as possible. Hitchcock's and Church's regiments had assembled there by 4 June, the date that Greene opened his headquarters. The artillery company, armed with four field pieces and escorting a dozen heavy guns, also arrived in early June. Varnum's regiment arrived several weeks later, the Rhode Island Assembly reconvened on 12 June and remained in session until 10 July. During this period it settled various logistical and disciplinary matters and added a secretary, a baker, and a chaplain to the brigade's staff. It also raised six new companies, two for each regiment. Greene was given the power, in consultation with the field officers, to fill vacancies, and he was placed under the "command and direction" of the Commander in Chief of the "combined American army" in Massachusetts. 

And from Greene's of the World <http://www.uftree.com/UFT/WebPages/plgreene/RHODE/d1/i0000014.htm> (link broken as of 2005) relating the Battle of Trenton:

On 2 Jan (1777)., Cornwallis left for Trenton, where Washington's inferior forces seemed trapped. NG's division slowed the advance enough to delay their arrival at Trenton until nightfall giving Washington's army an opportunity to withdraw along a back road to Princeton during the night, muffing their gun-carriage wheels to mask their retreat and leaving a unit behind to deceive the British with busy sounds of fortification. When Cornwallis discovered the ruse, the Americans had already engaged a surprised British garrison at Princeton. Although the British succeeded at first in driving back the advance unit, they soon gave way in a rout that cost them 28 killed, 58 wounded, and 129 captured. American losses were 23 killed and 20 wounded. Among the killed was Nathanael Greene's good friend Gen. Hugh Mercer, and among the wounded was his old regimental commander Daniel Hitchcock, who died a week later from injuries and exposure. Nathanael Greene pursued the British part of the way to New Brunswick, but with Cornwallis close behind, all the officers agreed to head for the hills of Morristown where a camp had been prepared. The British, now confined to eastern New Jersey, would be no threat to the American army for some months.

HITCHCOCK, Daniel, soldier, born in Rhode Island in 1741; died in Morristown, New Jersey, in January, 1777. He was graduated at Yale in 1761, practiced law in Providence, Rhode Island, and was lieutenant colonel of militia. In the beginning of the Revolution he enlisted in the Continental army, and commanded a Rhode Island regiment at the siege of Boston, and a brigade at Princeton, although he was far advanced in the disease from which he afterward died. On the battle-field of the latter engagement General Washington took him by the hand, and in the presence of the army thanked him for his gallant service.

Taken from: Appleton's Cyclopedia of American Biography, edited by James Grant Wilson and John Fiske. 6 vols. New York: D. Appleton and Company, 1887-1889

From LDS and Gendex we get no RI based Daniel Hitchcocks, and only two (born in 1729 and 1739) from Springfield, Massachusetts, a long distance away, but not insurmountable. From Ancestry.com we get a definite hit:

Daniel (Col.) Hitchcock
Birth: 15 FEB 1739/40 in Springfield, Hampden, Mass.
Death: 13 JAN 1777 in Rev. War.; at camp in Morristown, New Jersey
Father: Ebenezer Hitchcock b: 20 AUG 1694 in Springfield, Hampden, Mass.
Mother: Mary Sheldon d: 8 JAN 1760 in Springfield  Married: 14 FEB 1715/16
Marriage: None listed
Children: None listed

1.  Anna Hitchcock b: 9 JUL 1717
2.  Gad (Rev.) Hitchcock b: 12 FEB 1718/19 noted to give sermons with  pro-Revolutionary spin at Fanueil Hall (Providence Gazette 4Jun1774, p2, et al), graduated Harvard 1743.
3.  Ebenezer Hitchcock b: 20 AUG 1720 in Springfield, Hampden, Mass.
4.  Abner Hitchcock b: 17 NOV 1721
5.  Mary Hitchcock b: 29 JUL 1723
6.  Dinah Hitchcock b: 18 MAY 1725
7.  Silence Hitchcock b: 31 OCT 1726 in Springfield, Hampden, Mass.
8.  Joseph Hitchcock b: 25 NOV 1727 in Springfield, Hampden, Mass.
9.  William Hitchcock b: 20 NOV 1729 in Springfield, Hampden, Mass.
10.  Sarah Hitchcock b: 9 APR 1731 in Springfield, Hampden, Mass.
11.  Seth Hitchcock b: 19 FEB 1732/33 in Springfield, Hampden, Mass.
12.  Phineas Hitchcock b: 1 JAN 1734/35 in Springfield, Hampden, Mass.
13.  Stephen Hitchcock b: APR 1738 in Springfield, Hampden, Mass.
14.  Daniel (Col.) Hitchcock b: 15 FEB 1739/40 in Springfield, Hampden, Mass.