Martha Dandridge Custis Washington was born at Chestnut Grove in New Kent County, Virginia, June 2, 1731. Her father, John Dandridge (1700/1701 — 1756), emigrated to Virginia from England with his older brother William when John was 13 or 14 years old. He settled in New Kent County and became county clerk in 1730, the year he married Martha's mother, Frances Jones (1710 — 1785) of York County.
The Family of George Washington by Edward Savage
Frances Jones Dandridge's widowed mother lived in Williamsburg with her second husband, watchmaker John Flournoy. Her grandfather Rowland Jones (Martha's great-grandfather) was the first rector of the newly formed Bruton Parish Church from 1674 until his death in 1688.
Martha was the eldest of three brothers and five sisters, the youngest of whom was born when Martha was 25 and already had four children of her own. She married Colonel Daniel Parke Custis in 1750 and lived in his Pumunkey River mansion, White House. Custis managed the large New Kent County plantation of his father, Councillor John Custis, who lived at the brick house known as Custis Square in Williamsburg.
Martha and Daniel Custis had four children: Daniel, born in 1751; Frances, born in 1753; John (Jacky) born in 1755; and Martha (Patsy), born in 1756 or 1757. Daniel died at the age of three, and Frances died at four years of age. July 26, 1757, when Martha Custis was only 26 years old, her husband died suddenly.
Martha married Colonel George Washington (1732 — 1799) January 6, 1759. Washington had been commander of the First Virginia Regiment in the French and Indian War and had been elected a burgess representing Frederick County in 1758. He had acquired Mount Vernon by lease from the widow of his half-brother Lawrence in 1754. (He inherited the plantation upon her death in 1761.) Before his marriage, Washington had increased the size of Mount Vernon from the original one-and-one-half-story dwelling to a two-and-one-half story home. George and Martha Washington and her children Jacky and Patsy moved to Mount Vernon in April 1759.
Mount Vernon remained George and Martha's home until their respective deaths, although they spent much time elsewhere during the war and presidential years. June 19, 1773, Martha's teenage daughter Patsy died at Mount Vernon. The following year, Martha's son John Parke Custis married Eleanor Calvert at her home, Mount Airy, in Prince George County, Maryland. George Washington attended the wedding, but Martha was so grief-stricken over Patsy's death, she was unable to make the trip. John and Eleanor had five children before his death from "camp fever" (probably typhoid fever) November 5, 1781.
Although Martha remained at Mount Vernon when George went to Philadelphia as a delegate to the Second Continental Congress, she often accompanied him to his headquarters during the war years. She spent the winter of 1775 in Cambridge, Massachusetts, and in the spring of 1776, she followed him to New York. In the spring of 1777, she arrived at his headquarters in Morristown, New Jersey, but she returned to Mount Vernon for the summer. The next winter she joined her husband at Valley Forge, and later she stayed with him during campaigns in New Jersey, New York, Pennsylvania, and Maryland.
Martha and George Washington raised two of their grandchildren, Eleanor Parke Custis (Nelly) and George Washington Parke Custis (called "Wash" or "Tub") at Mount Vernon. When Martha's son's widow Eleanor remarried Dr. David Stuart in 1783, she and her two eldest daughters lived at the Stuart home in Abingdon, while the two youngest children continued to live at Mount Vernon. In 1784, Martha's 15-year-old niece, Frances Basset, came to live at Mount Vernon. She married George's nephew, Major George Augustine Washington, in 1785.
George Washington was inaugurated president on April 30, 1789. As the wife of the president, Martha lived with her husband and grandchildren Nelly and Wash in Philadelphia until they returned to Mount Vernon March 15, 1797. George Washington died at Mount Vernon December 14, 1799. Martha was widowed for two and one-half years until she, too, died at Mount Vernon May 22, 1802
From the website of The Colonial Williamsburg Foundation.