Amy Pargiter1 
Her married name became Washington.1
Children of Amy Pargiter and Lawrence Washington
- Lawrence Washington+1
- Christopher Washington1
- George Washington+1 d. c Apr 1625
- Amy Washington+2
- Frances Washington2
- Elizabeth Washington+2
- Barbara Washington2
- Magdalen Washington2
- Margaret Washington2
- Mary Washington+2 d. 1622
- Robert Washington+ b. c 1544, d. c 1620
Robert de Washington1 
Children of Robert de Washington and Agnes de Gentyl
- John de Washington+1 d. 1407/8
- Robert de Washington1
- [S60] Charles and Hugh Brogan Mosley, editor, American Presidential Families (London, U.K.: Alan Sutton and Morris Genealogical Books, 1994), page 47. Hereinafter cited as American Presidential Families.
Agnes de Gentyl1
Her married name became de Washington.1
Children of Agnes de Gentyl and Robert de Washington
- John de Washington+1 d. 1407/8
- Robert de Washington1
- [S60] Charles and Hugh Brogan Mosley, editor, American Presidential Families (London, U.K.: Alan Sutton and Morris Genealogical Books, 1994), page 47. Hereinafter cited as American Presidential Families.
Robert de Washington1 
He held the office of Member of Parliament (M.P.) for Westmorland in 1300.2
Child of Robert de Washington and Joan de Strickland
- Robert de Washington+2 d. bt 1346 – 1348
Joan de Strickland1
From 1292, her married name became de Washington.1
Child of Joan de Strickland and Robert de Washington
- Robert de Washington+1 d. bt 1346 – 1348
- [S60] Charles and Hugh Brogan Mosley, editor, American Presidential Families (London, U.K.: Alan Sutton and Morris Genealogical Books, 1994), page 47. Hereinafter cited as American Presidential Families.
Sir William de Washington1 
He lived at Washington, County Durham, EnglandG.1
Child of Sir William de Washington and Margaret de Morville
- Robert de Washington+1 d. 1324
- [S60] Charles and Hugh Brogan Mosley, editor, American Presidential Families (London, U.K.: Alan Sutton and Morris Genealogical Books, 1994), page 46. Hereinafter cited as American Presidential Families.
Margaret de Morville1
Her married name became de Washington.1
Child of Margaret de Morville and Sir William de Washington
- Robert de Washington+1 d. 1324
- [S60] Charles and Hugh Brogan Mosley, editor, American Presidential Families (London, U.K.: Alan Sutton and Morris Genealogical Books, 1994), page 46. Hereinafter cited as American Presidential Families.
Sir Walter de Washington1 
He lived at Washington, County Durham, EnglandG.1 He had four other sons and three daughters.1
Child of Sir Walter de Washington and Joan de Whitchester
- Sir William de Washington+1 d. bt 1288 – 1290
- [S60] Charles and Hugh Brogan Mosley, editor, American Presidential Families (London, U.K.: Alan Sutton and Morris Genealogical Books, 1994), page 46. Hereinafter cited as American Presidential Families.
Joan de Whitchester1 
She was also known as Juliana.1 Her married name became de Washington.1
Child of Joan de Whitchester and Sir Walter de Washington
- Sir William de Washington+1 d. bt 1288 – 1290
- [S60] Charles and Hugh Brogan Mosley, editor, American Presidential Families (London, U.K.: Alan Sutton and Morris Genealogical Books, 1994), page 46. Hereinafter cited as American Presidential Families.
William de Washington1 
He lived at Washington, County Durham, EnglandG.1
Child of William de Washington and Alice de Lexington
- Sir Walter de Washington+1 b. c 1212, d. 14 May 1264
- [S60] Charles and Hugh Brogan Mosley, editor, American Presidential Families (London, U.K.: Alan Sutton and Morris Genealogical Books, 1994), page 46. Hereinafter cited as American Presidential Families.