McKean, Thomas, 1734-1817

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Thomas McKean (March 19, 1734 – June 24, 1817) was an American lawyer, politician, and a Founding Father of the United States from New Castle, in New Castle County, Delaware and Philadelphia. During the American Revolution he was a delegate to the Continental Congress where he signed the Continental Association, United States Declaration of Independence, and the Articles of Confederation. McKean served as a President of Congress. He was at various times a member of the Federalist and Democratic-Republican parties. McKean served as President of Delaware, Chief Justice of Pennsylvania, and Governor of Pennsylvania.

Born in New London Township, Province of Pennsylvania, his education began at the Reverend Francis Allison's New London Academy. At the age of sixteen, he went to New Castle, Delaware, to begin the study of law under his cousin, David Finney. In 1755 he was admitted to the bar of the Lower Counties, as Delaware was then known, and likewise in the Province of Pennsylvania the following year. In 1756 he was appointed deputy attorney general for Sussex County. From the 1762/63 session through the 1775/76 session, he was a member of the General Assembly of the Lower Counties, serving as its Speaker in 1772/73. From July 1765, he also served as a judge of the Court of Common Pleas and began service as the customs collector at New Castle in 1771. At the Stamp Act Congress of 1765, McKean and Caesar Rodney represented Delaware. In November 1765 his Court of Common Pleas became the first such court in the colonies to establish a rule that all the proceedings of the court be recorded on un-stamped paper. In 1768, McKean was elected to the revived American Philosophical Society.

In spite of his primary residence in Philadelphia, McKean remained the effective leader for American independence in Delaware. Along with George Read and Caesar Rodney, he was one of Delaware's delegates to the First Continental Congress in 1774 and the Second Continental Congress in 1775 and 1776. Being an outspoken advocate of independence, McKean's was a key voice in persuading others to vote for a split with Great Britain. After the vote in favor of independence on July 2, McKean participated in the debate over the wording of the official Declaration of Independence, which was approved on July 4. A few days after McKean cast his vote, he left Congress to serve as colonel in command of the Fourth Battalion of the Pennsylvania Associators, a militia unit created by Benjamin Franklin in 1747. Being away, he was not available when most of the signers placed their signatures on the Declaration of Independence on August 2, 1776. Since his signature did not appear on the printed copy that was authenticated on January 17, 1777, it is assumed that he signed after that date, possibly as late as 1781.

McKean was elected to Delaware's first House of Assembly for both the 1776/77 and 1778/79 sessions, succeeding John McKinly as Speaker on February 12, 1777, when McKinly became President of Delaware. Shortly after President McKinly's capture and imprisonment, McKean served as the President of Delaware for a month, from September 22, 1777, to October 20, 1777. McKean started his long tenure as Chief Justice of Pennsylvania on July 28, 1777, and served in that capacity until 1799. There he largely set the rules of justice for revolutionary Pennsylvania. He was a member of the convention of Pennsylvania, which ratified the Constitution of the United States. After initially aligning himself with the Federalist Party, he eventually became an outspoken Jeffersonian Republican.

McKean was elected Governor of Pennsylvania and served three terms from December 17, 1799, until December 20, 1808. At first, McKean ousted Federalists from state government positions and so he has been called the father of the spoils system. However, in seeking a third term in 1805, McKean was at odds with factions of his own Democratic-Republican Party, and the Pennsylvania General Assembly instead nominated Speaker Simon Snyder for governor. McKean then forged an alliance with Federalists, called "the Quids," and defeated Snyder. Afterwards, he began removing Jeffersonians from state positions.

McKean died in Philadelphia and was buried in the First Presbyterian Church Cemetery there. In 1843, his body was moved to Laurel Hill Cemetery.

Archival Resources
Role Title Holding Repository
creatorOf Delaware. General Assembly. Resolution, 1777 May 9, Wilmington, Del. Rosenbach Museum & Library
creatorOf McKean, Thomas. Dorothea. Milwaukee Public Library, Milwaukee County Federated Library System
creatorOf McKean, Thomas, 1734-1817. Letter, 1807 July 4, Philadelphia, [Pennsylvania] to [Thomas Jefferson], n.p. William & Mary Libraries
referencedIn Dallas family. Alexander James and George Mifflin Dallas, Papers, 1794-1865. Temple University Libraries, Paley Library
referencedIn Benjamin Franklin Papers Part 8 -- Letters to Franklin, 1783 December-1786 American Philosophical Society
referencedIn Redwood, Francis T., Mrs. Collection, 1762-1936 Historical Society of Pennsylvania
referencedIn Duane Family Collection, 1764-1933 American Philosophical Society
referencedIn Hamilton, James, 1752-1819. James Hamilton collection, 1733-1899. Historical Society of Pennsylvania
creatorOf McKean, Thomas, 1734-1817. Letter : Philadelphia, to George Bryan, Lancaster, Pa., 1811 Jan. 12. Texas Christian University
referencedIn Nicholson, John, 1757-1800. Papers, 1772-1819 [microform]. Hagley Museum & Library
creatorOf Hopkinson, Francis, 1737-1791. Correspondence, 1771-1772. Rosenbach Museum & Library
referencedIn Rosengarten, J. G. (Joseph George), 1835-1921. General Count de Rochambeau and The Château de Rochambeau, and related materials, ca. 1892-1895. University of Pennsylvania Library
referencedIn Sparks, Jared, 1789-1866. Jared Sparks collection of American manuscripts, 1582-1843 Houghton Library
referencedIn Duane, William J. (William John), 1780-1865. Papers, [ca. 1760s]-[ca. 1860s]. American Philosophical Society Library
referencedIn Pennsylvania. Lieutenant Governor (1763-1771 : Penn). Warrant : Philadelphia, to Richard McWilliam, 1765 July 10. Rosenbach Museum & Library
creatorOf United States. Continental Congress. Proclamation : Philadelphia, 1781 Oct. 26. Rosenbach Museum & Library
creatorOf McKean, Thomas. Autograph letter signed : to James Monroe, Esq., 1800 June 16. Pierpont Morgan Library.
referencedIn Signers collection, 1770-1826. Johns Hopkins University, Sheridan Libraries and the Milton S. Eisenhower Library
referencedIn Bamberger, Louis, 1855-1944,. Autograph collection, 1683-1929. New Jersey Historical Society Library
referencedIn Carson, Hampton L. (Hampton Lawrence), 1852-1929. Hampton L. Carson papers, 1715-1941; bulk 1870-1930. Historical Society of Pennsylvania
referencedIn Slagg, John. [Thomas McKean day in Williamsburg, City of Brooklyn, USA : proclamation, 2009] Historical Society of Pennsylvania
creatorOf McKean, Thomas. Signature to a letter : Philadelphia, to Maj. Gen. Greene, 1781 Sept. 21. Pierpont Morgan Library.
referencedIn Provincial delegates letters, 1754-1829. Historical Society of Pennsylvania
creatorOf McKean, Thomas, 1734-1817. Letter to Matthew Irwin, 1785 June 29. University of Pennsylvania Libraries, Van Pelt Library
referencedIn Powell, Leven, 1737-1810. Papers, 1774-1806. William & Mary Libraries
creatorOf Gwathmey collection, 1708-1852 University of Virginia. Library
referencedIn Lincoln, Anna T. Delaware's triumvirate / [signed] Anna T. Lincoln [19--]. University of Delaware Library, Hugh M Morris Library
referencedIn American Philosophical Society Archives. Record Group IIa, 1743-1806 American Philosophical Society
referencedIn Chambers, Gordon. Collection, 1792-1823. Historical Society of Pennsylvania
creatorOf Rosenbach, A. S. W. (Abraham Simon Wolf), 1876-1952,. Signers of the Declaration of Independence autograph collection, 1756-1818. Rosenbach Museum & Library
referencedIn Autograph File, M Houghton Library
creatorOf Morris, Gouverneur, 1752-1816. DS, 1781 August 8. : Oath of Office. Copley Press, J S Copley Library
creatorOf McKean, Thomas, 1734-1817. Land grant, 1806 April 2. Texas Tech University Libraries, Academic Library
referencedIn Henry A. Willard II Collection, 1743-1888, (bulk 1770-1840) Library of Congress. Manuscript Division
creatorOf McKean, Thomas, 1734-1817. Letter to John Adams, 1814 January. University of Virginia. Library
creatorOf United States. Continental Congress. Committee of Secret Correspondence. Charter of the brigantine Cornelia, 1776 Feb. 1. Rosenbach Museum & Library
referencedIn Richard Henry Lee Papers, 1763-1823 American Philosophical Society
referencedIn Cooper, Thomas, 1759-1839. Letter, Northumberland, Pa., to Joseph Clay, Washington, D.C., 1803 December 10. Pennsylvania State University Libraries
referencedIn Stauffer, David McNeely, 1845-1913,. Collection, ca. 1644-1884. Historical Society of Pennsylvania
referencedIn Thomson, Charles, 1729-1824. Papers, 1779-1788. Duke University Libraries, Duke University Library; Perkins Library
referencedIn Chew, Benjamin, 1722-1810. Estate papers, 1776-1904. Historical Society of Pennsylvania
referencedIn John C. Page letter to William Page Archives of American Art
creatorOf Franklin, Walter, 1773-1838. Lawyer's form book, 1793-1805. Harvard Law School Library Langdell Hall Cambridge, MA 02138
creatorOf Adams, Samuel, 1722-1803. ALS, 1783 Apr. 19, Boston, Mass., to Thomas McKean. Rosenbach Museum & Library
creatorOf Pennsylvania. Governor (1799-1808 : McKean). [Land grant] : Pennsylvania, 1802 March 2. University of North Texas Library, UNT
referencedIn Muhlenberg, John Peter Gabriel, 1746-1807. ALS : Philadelphia, to Thomas McKean, 1806 Feb. 21. Rosenbach Museum & Library
creatorOf McKean, Thomas, 1734-1817. ALS : Philadelphia, to Lord Butler, 1798 Apr. 9. Rosenbach Museum & Library
referencedIn Century Company records New York Public Library. Manuscripts and Archives Division
creatorOf Pennsylvania. Surveyor General. Appointment : Lancaster, Pa., 1807 Jan. 7. Rosenbach Museum & Library
referencedIn Charles Willson Peale letterbooks, 1767-1827, 1767-1827 American Philosophical Society
referencedIn Brodhead, Daniel, 1736-1809. Draper manuscripts: Daniel Brodhead papers, 1775-1846. Wisconsin Historical Society, Newspaper Project
creatorOf McKean, Thomas. Autograph letter signed : to Robert Severs, 1779 July 26. Pierpont Morgan Library.
creatorOf McKean, Thomas, 1734-1817. [Privateering license issued to Aaron Meecher, 1781 November 5th]. New England Historic Genealogical Society
referencedIn Peale, Charles Willson, 1741-1827. Letterbooks, 1767-1827. American Philosophical Society Library
creatorOf McKean, Thomas. License, signed : made out to George Griess, 1804 Aug. 18. Pierpont Morgan Library.
creatorOf Greene, Nathanael, 1742-1786. Autograph letter signed : "Head Quarters, Buck Head," to Thomas McKean, Esq., 1781 Nov. 28. Pierpont Morgan Library.
referencedIn Hay, Southard, 1875-1951,. Southard Hay autograph collection, 1750-1885 (inclusive). Yale University Library
referencedIn Thompson, William, 1736-1781. William Thompson papers, 1778. South Carolina Historical Society
creatorOf McKean, Thomas. Autograph letter signed : Philadelphia, to Thomas Mifflin, Governor of Pennsylvania, 1793 Sept. 24. Pierpont Morgan Library.
creatorOf McKean, Thomas. Signature to a letter : Philadelphia, to the Honorable Maj. Gen. Greene, 1781 Nov. 2. Pierpont Morgan Library.
referencedIn Frederick M. Dearborn collection of military and political Americana, Part I: The Revolution and the Administration, 1669-1958. Houghton Library
creatorOf Pennsylvania. Supreme Court. Opinion : given to the Supreme Executive Council of Pennsylvania, [between 1780 and 1791]. Rosenbach Museum & Library
referencedIn Lee, Richard Henry, 1732-1794. Letter, 1778 December 27, Chantilly, [Fairfax County, Va.], to Patrick Henry, n.p. Colonial Williamsburg Foundation. John D. Rockefeller, Jr. Library
referencedIn Frederick M. Dearborn collection of military and political Americana, Part I: The Revolution and the Administration, 1669-1958. Houghton Library
referencedIn Conarroe Autograph Collection, 1643-1882. Historical Society of Pennsylvania
referencedIn Logan, Robert Restalrig,. Collection, 1671-1863. Historical Society of Pennsylvania
referencedIn Slagg, John. [McKean Street renaming project : 2009 / assembled by John Slagg] Historical Society of Pennsylvania
creatorOf McKean, Thomas, 1734-1817. Papers, 1759-1847. Historical Society of Pennsylvania
creatorOf Rochambeau, Jean-Baptiste-Donatien de Vimeur, comte de, 1725-1807. Papers of the Comte de Rochambeau [manuscript], 1780-1784. University of Virginia. Library
referencedIn Wills, 1790-1822, of signers of the Declaration of Independence. American Philosophical Society Library
referencedIn Northamton County (Pa.) papers, ca. 1682-1887. Historical Society of Pennsylvania
referencedIn Potter, John, d. ca. 1759. Draper manuscripts: Potter family papers, 1747-1807. Wisconsin Historical Society, Newspaper Project
creatorOf McKean, Thomas, 1734-1817. Thomas McKean bank check, 1805 May 09. Detroit Public Library, Detroit Main Library
creatorOf Pennsylvania. Governor. Pardon, 1800 Sept. 24, Lancaster, Pa. Rosenbach Museum & Library
referencedIn Chauncey family. Chauncey family papers, 1675-1928 (inclusive). Yale University Library
referencedIn Adams, John, 1735-1826. Letters to Benjamin Rush and Mercy Otis Warren, 1813-1814. University of Virginia. Library
referencedIn Du Ponceau, Peter Stephen, 1760-1844. Collection, 1781-1844 American Philosophical Society
creatorOf McKean, Thomas, 1734-1817. Way family papers 1785-1848 [manuscript] Historical Society of Western Pennsylvania, Heinz History Center Detre Library and Archives
creatorOf Pennsylvania. Governor. Appointment, 1808 July 22, of Mahlon Dickerson as recorder of the city of Philadelphia. Rosenbach Museum & Library
creatorOf Delaware. General Assembly. Draft, 1777 May 12, New Castle, Del., on the General Loan-Office for the County of Kent. Rosenbach Museum & Library
referencedIn Barbé-Marbois, François, marquis de, 1745-1837. Papers of Francois Barbé-Marbois [manuscript] 1781-88. University of Virginia. Library
creatorOf McKean, Thomas, 1734-1817. Judgment that Jonas Justis must pay Charles Paulson £48 : manuscript, 1761 May. University of Chicago Library
creatorOf McKean, Thomas, 1735-1817. ADS, 1800 October 18 : Lancaster, [Pennsylvania]. Proclamation of the Governor for Convening the Legislature. Copley Press, J S Copley Library
creatorOf McKean, Thomas, 1734-1817. Signature to a letter : to Nathan Brownson, 1781 Sept. 24. Pierpont Morgan Library.
referencedIn Bayard, Mabel,. Collection, 1777-1831. Historical Society of Pennsylvania
referencedIn Southard Hay autograph collection, 1750-1885 Yale University. Department of Manuscripts and Archives
creatorOf McKean, Thomas, 1734-1817. Memorandum : of the will of Thos. McKean, 1817 June 27. Bryn Mawr College, Mariam Coffin Canaday Library
creatorOf Larwill, William C. William Larwill journal, 1800-1828. Ohio History Connection, Ohio Historical Society
creatorOf Dorothy Merriman Schall papers, 1686-1897 Haverford College Quaker & Special Collections
creatorOf McKean, Thomas, 1734-1817. Judgment that Jonas Justis must pay Charles Paulson £48 : manuscript, 1761 May. Texas Christian University
referencedIn Rodney, Thomas, 1744-1811. Papers, [ca. 1784-1810?]. Brown University Archives, John Hay Library
referencedIn Hubbel, Horatio, d. 1875. Papers, 1844-1871. Historical Society of Pennsylvania
referencedIn Thomas Addis Emmet collection, 1483-1876 (bulk:1700-1800) New York Public Library. Manuscripts and Archives Division
referencedIn Wills, 1790-1822, of signers of the Declaration of Independence, 1790-1822 American Philosophical Society
referencedIn Atlee, William Augustus, 1735-1793. Papers of William Augustus Atlee, 1759-1816. Library of Congress
referencedIn Adams, John, 1735-1826. Letter to Mercy Otis Warren and portrait, 1814 February 2. University of Virginia. Library
creatorOf Muhlenberg, John Peter Gabriel, 1746-1807. Letter from John Peter Gabriel Muhlenberg, in council, Philadelphia, Pennsylvania, to Thomas McKean, chief justice of Pennsylvania : manuscript signed, 1788 May 2. Wisconsin Historical Society Archives
referencedIn Hazard, Ebenezer, 1744-1817. Papers, 1801. Duke University Libraries, Duke University Library; Perkins Library
creatorOf McKean, Thomas, 1734-1817. Thomas McKean correspondence, 1779. Library of Congress
referencedIn Klos, Stanley L. Forgotten Founders collection, 2008-2009. Historical Society of Pennsylvania
referencedIn Robinson, Elmer E., 1894-1982,. Americana, 1765-1969. Stanford University. Department of Special Collections and University Archives
referencedIn Leib, Michael, 1761-1822. Letter, 1806, Dec. 22 : Lancaster, Pennsylvania, to Joseph Clay, House of Representatives, Washington. Duke University, Medical Center Library & Archives
Role Title Holding Repository
Relation Name
associatedWith Adams, John, 1735-1826. person
associatedWith Adams, Samuel, 1722-1803. person
associatedWith Albert H. Small Declaration of Independence Collection (University of Virginia) corporateBody
associatedWith American Philosophical Society. corporateBody
correspondedWith Atlee, William Augustus, 1735-1793. person
associatedWith Bamberger, Louis, 1855-1944, person
associatedWith Barbé-Marbois, François, marquis de, 1745-1837. person
associatedWith Bayard, Mabel, person
associatedWith Brodhead, Daniel, 1736-1809. person
associatedWith Brownson, Nathan, person
associatedWith Butler-Gunsaulus Collection (University of Chicago. Library) corporateBody
associatedWith Butler, Lord, person
associatedWith Carson, Hampton L. (Hampton Lawrence), 1852-1929. person
correspondedWith Century Company corporateBody
associatedWith Chambers, Gordon. person
associatedWith Chauncey family. family
associatedWith Chew, Benjamin, 1722-1810. person
associatedWith Connecticut. Governor (1769-1784 : Trumbull) corporateBody
associatedWith Cooper, Thomas, 1759-1839. person
associatedWith Dallas, Alexander James, 1759-1817. person
associatedWith Dallas family. family
associatedWith Dearborn, Frederick M. (Frederick Myers), b. 1876 person
memberOf Delaware. General Assembly. corporateBody
correspondedWith Dellenbaugh, Frederick Samuel, 1853-1935 person
associatedWith Duane family family
associatedWith Duane, William J. (William John), 1780-1865. person
associatedWith Du Ponceau, Peter Stephen, 1760-1844 person
associatedWith Emmet, Thomas Addis person
associatedWith Franklin, Benjamin, 1706-1790 person
associatedWith Franklin, Walter, 1773-1838. person
associatedWith George Bryan, fl. 1811. person
associatedWith Greene, Nathanael, 1742-1786, person
associatedWith Griess, George, person
associatedWith Hamilton, James, 1752-1819. person
associatedWith Hay, Southard, 1875-1951, person
associatedWith Hazard, Ebenezer, 1744-1817. person
associatedWith Hopkinson, Francis, 1737-1791. person
associatedWith Hubbel, Horatio, d. 1875. person
associatedWith Irwin, Matthew, person
associatedWith Jefferson, Thomas, 1743-1826, person
associatedWith Justis, Jonas, fl. 1761. person
associatedWith Klos, Stanley L. person
associatedWith Larwill, William C. person
associatedWith Laurens, John, 1754-1782. person
associatedWith Lee, Richard Henry, 1732-1794. person
associatedWith Leib, Michael, 1761-1822. person
associatedWith Lincoln, Anna T. person
associatedWith Logan, Robert Restalrig, person
parent-in-law of Martinez de Irujo, Carlos person
associatedWith Meecher, Aaron. person
alumnusOrAlumnaOf Middle Temple (London, England) corporateBody
associatedWith Mifflin, Thomas, person
associatedWith Monroe, James, 1758-1831, person
associatedWith Morris, Gouverneur, 1752-1816. person
associatedWith Muhlenberg, John Peter Gabriel, 1746-1807. person
associatedWith Nicholson, John, 1757-1800. person
associatedWith Owen, Evan. person
associatedWith Page, John C. person
associatedWith Paulson, Charles, fl. 1761. person
associatedWith Peale, Charles Willson, 1741-1827. person
associatedWith Pennsylvania. Governor (1799-1808 : McKean) corporateBody
associatedWith Pennsylvania. Lieutenant Governor (1763-1771 : Penn) corporateBody
memberOf Pennsylvania. Supreme Court. corporateBody
associatedWith Pennsylvania. Surveyor General. corporateBody
associatedWith Powell, Leven, 1737-1810. person
associatedWith Rainbow (Galley) corporateBody
associatedWith Read, George, 1733-1798. person
associatedWith Redwood, Francis T., Mrs., person
associatedWith Robinson, Elmer E., 1894-1982, person
associatedWith Rochambeau, Jean-Baptiste-Donatien de Vimeur, comte de, 1725-1807. person
associatedWith Rodney, Caesar, 1728-1784. person
associatedWith Rodney, Thomas, 1744-1811. person
associatedWith Rosenbach, A. S. W. (Abraham Simon Wolf), 1876-1952, person
associatedWith Rosengarten, J. G. (Joseph George), 1835-1921. person
associatedWith Rush, Benjamin, 1746-1813. person
associatedWith Severs, Robert, person
associatedWith Sparks, Jared, 1789-1866 person
associatedWith Sparks, Jared, 1789-1866 person
associatedWith Stauffer, David McNeely, 1845-1913, person
associatedWith Stuart, G. person
associatedWith Thompson, William, 1736-1781. person
associatedWith Thomson, Charles, 1729-1824. person
memberOf United States. Continental Congress. corporateBody
associatedWith United States. Continental Congress. Committee of Secret Correspondence. corporateBody
associatedWith Washington, George, 1732-1799. person
associatedWith Waterman, John. person
associatedWith Welch, Thomas B., 1814-1874. person
associatedWith Willard, Henry A. (Henry Augustus), 1902- person
Place Name Admin Code Country
Philadelphia PA US
Township of New London PA US
London ENG GB
New Castle DE US
Subject
Embargo, 1807-1809
Land grants
Presidents
Privateering
Real property
Occupation
County Government Official
Delegates
Governors
Jurists
Lawyers
Activity

Person

Birth 1734-03-19

Death 1817-06-24

Male

Britons,

Americans

English

Information

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