As such, below is a table which contains links to charts provided by Wikitree showing his lineage and the trails to each of the Magna Carta surety barons. Next to the table are some stickers featuring some of his American Magna Carta Gateway Ancestors who have been linked as descendants of the Magna Carta surety barons. Many of his ancestors were documented by Douglas Richardson as American Gateway Ancestors who emigrated to America by 1700.^[1][1]

Descendant of Roger Ludlow, Dep. Gov. of the Massachusetts Bay Colony and Lt. Gov. of Connecticut, PGM (Puritan Great Migration) and Gateway Ancestor.

Descendant of George Yeardley, Governor of the British Colony of Virginia, a "Jamestowne Society Qualifying Ancestor" and Gateway Ancestor.

Descendant of John West, 6th Crown Governor of Virginia, a "Jamestowne Society Qualifying Ancestor" and Gateway Ancestor.

Descendant of Edward Digges, Colonial Governor of Virginia, a "Jamestowne Society Qualifying" and Gateway Ancestor. John's relationship trail to his disputed daughter Catherine Herndon.

Descendant of Agatha (Eltonhead) Stubbins Wormeley Chicheley, Gateway Ancestor and a sister to Martha (Eltonhead) Conway.

Descendant of Martha (Eltonhead) Conway, Gateway Ancestor and a sister to Agatha (Eltonhead).

Descendant of Thomas Lunsford, a "Jamestowne Society Qualifying" and Gateway Ancestor.

Descendant of Rev. Hawte Wyatt, a "Jamestowne Society Qualifying" and Gateway Ancestor (paternal lineage). Relationship trail from paternal grandmother's great grandfather Edmund Wyatt.

Descendant of Gerard Fowke, a "Jamestowne Society Qualifying" and Gateway Ancestor.

Magna Carta Surety Barons	Relationship Charts (Trails)
William d'Aubigny	24th Ggf
Hugh le Bigod	24th Ggf
Roger Bigod	24th Ggf
Henry de Bohun	24th Ggf
Gilbert de Clare	23rd Ggf
Richard de Clare	24th Ggf
John Fitz Robert	26th Ggf
Robert FitzWalter	24th Ggf
William de Huntingfield	24th Ggf
John de Lacy	23rd Ggf
William de Lanvallay	24th Ggf
William Malet	25th Ggf
William de Mowbray	23rd Ggf
Saer de Quincy	24th Ggf
Robert de Ros	24th Ggf
Geoffrey de Say	24th Ggf
Robert de Vere	24th Ggf

... John Williams was a project affiliate.

John was honored to be a designated affiliate with the Magna Carta Project since he believes it is the most prestigious Wikitree project. An affiliation gives an opportunity to monitor the profiles on the project’s watch-list. It includes profiles of distinguished Americans who have been linked as Gateway Ancestors who were descendants of the Magna Carta surety barons.

Sources

1. ↑ ^{1.0 1.1} Richardson, Douglas. Magna Carta Ancestry: A Study in Colonial and Medieval Families, 4 vols, ed. Kimball G. Everingham. 2nd edition. Salt Lake City: the author, 2011. This sources was used to identify the American Gateway Ancestors who were included as descendants of Magna Carta surety barons. See also WikiTree's source page for Magna Carta Ancestry.