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Alexander McWilliams Papers

Identifier: GTM-830808

Content Description

Materials relating to the Broad Neck tract located at St . Clement's Manor, St. Mary's County. Includes boundary disputes, indentures, depositions. The property was originally granted to Thomas Gerard, whose daughter married the noted rebel leader of 1689, Kenelm Cheseldyne or Cheseldine [sp. var.]. The collection also includes a list of deaths in St . Mary's County from 1806-1844 as well as miscellaneous material. Copies of this collection are available at the Manuscripts Division of the Library of Congress.

Click on External Documents below to link to collection finding aid.


  • 1678 - 1844

Conditions Governing Access

Most manuscripts collections at the Georgetown University Booth Family Center for Special Collections are open to researchers; however, restrictions may apply to some collections. Collections stored off site require a minimum of three days for retrieval. For use of all manuscripts collections, researchers are advised to contact the Booth Family Center for Special Collections in advance of any visit.

Biographical / Historical

Dr. Alexander McWilliams was born in 1773 in St. Mary's County, and died March 31, 1850, in Washington, D.C. He was the son of Thomas McWilliams, Jr., and Mary Ann Mattingly. On August 26, 1806, he married Ann Tabbs in Washington, D.C. Tabbs was born before 1791 and died June 22, 1828. Her parents were Barton Tabbs and Sarah Bond. Other children were:

- Clinton, born 1808, died September 23, 1820; - Albert C., born November 16, 1811, died October 8, 1827 in Rochester, NY; - Adelaide Elizabeth, born September 2, 1813, died after 1852. Married Noble Young, May 5, 1836; - Jane, born April 21, 1815. Married A.H. Lawrence circa 1841. - Alexander Barton T. (probably “Tabbs”), born February 3, 1823, died May 17, 1898 in Washington, DC. Became a doctor and resided in St. Mary’s County. Married first to Charlotte T. Kirk; second to Adrianna (“Addie”) C. Gough. - Ann(?) Tabbs, born 1828. Alive in 1830.

Dr. McWilliams served as surgeon’s mate in the U.S. Navy. He received medical training under Dr. Barton Tabbs, later marrying the latter’s daughter Ann. Dr. Tabbs, a Navy surgeon, botanist and inventor, ran a small medical school at Great Mills, Md.

Sources: Margaret Fresco, Doctors of St. Mary’s County, 1634-1900 (1992); and notes from curatorial file.

Additional resource: St. Mary’s County Genealogical Society at


0.25 Linear Feet (1 box)

Language of Materials


Immediate Source of Acquisition

Given by Joseph McWilliams of Broad Neck, Maryland, to Rev. Lawrence Kelly, S.J., for the archives of Georgetown College, circa 1900-1920.

Alexander McWilliams Papers
Georgetown University Library Booth Family Center for Special Collections.
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Repository Details

Part of the Georgetown University Manuscripts Repository

Lauinger Library, 5th Floor
37th and O Streets, N.W.
Washington DC 20057