Gurney Genealogy Library Updated 4 August 2026 by Allen Gurney

These research notes are provided as-is and contain supplementary working research.

Identity — candidate overview

Every documented same-name English John Gurney household the record sweeps have surfaced is tested against one shared specification of what the emigrant and his household must look like. This unit carries the test, how it is applied, and what the field looks like after it. It does not argue any candidate’s own case.

The test does not produce a single survivor. Six named men stand in the field alongside Candidate B — the Ackworth household, the Cheddington 1608 John, the younger Berkhamsted John, the John baptised at Weston Turville in 1604, the Hitcham head and the Epping line — and the leading rows in the assessment are not people at all.

Two corrections to how a household is even identified came out of the August 2026 work, and both are general. A baptism is not a fathering event, so a man baptised in 1604 belongs to the emigrant’s own generation and not to his father’s — an error that had kept the field’s best documented age fit filed among “generational predecessors” and unscored for months. And a parish’s records must be checked for chronological impossibility before the parish is carried as one household: Weston Turville buried a John Gurney in February 1625 and baptised a child to a father John in September 1627, so it held at least two Johns, and the file was scoring a composite.

The specification a candidate is tested against

Any English candidate must plausibly account for a tailor named John Gurney, a trade anchored in the colonial record;[1] married to a wife named Mary;[2] with children including Mary, Richard and John, born in England, and a daughter Mary born by 1631 on the primary bound of her own 1647 Braintree marriage;[3] the father himself born in England within a c.1602–1610 window read off his 1652/3 “aged 50 or thereabouts” deposition;[4] and gone from the English record by the time he first appears in Massachusetts in June 1641.[5] A settled Puritan household is a soft further criterion, consistent with — though not distinctive of — most Great Migration emigrants of the period.[6]

Two children are excluded from the test and one is set aside. No Peter Gurney-variant baptism exists anywhere in Great Britain 1627–1647 and no Isaac 1632–1652; both men first appear in colonial records, so their absence from the English record is expected and must not count against any candidate. Sarah is set aside for a different reason — she has no primary record at all and is absent from Torrey’s compendium of New England marriages before 1700.[7] The English child set is Mary, Richard, John and possibly Sarah.

The full specification is fifteen weighted attributes, each a scale rather than a binary and none mandatory, running from the surname through the household, the parents, the father’s age, two alternative marriage windows, a predicted paternal grandfather, region, trade and a push event. It is set out, with the matrix scoring every non-zero candidate against it, in its own unit.[8] Evidence

How candidates are tested, and where the testing went wrong

A household is eliminated on structural grounds rather than circumstantial ones: continuing documented English residence past June 1641; a wife whose name is not Mary, which clears the majority of the sweep; a child set that does not match or collides in date; or a documented trade, death or generation that places the household in the wrong period. A household attested by only a single indexed event, with no continuing record behind it, is held at a low residual rather than eliminated outright, since one record cannot itself rule out an unrecorded emigration.[9]

Three corrections to that procedure came out of the July 2026 work, and each of them changed results.

Counting households is not counting men. The older enumeration — “of the 51 named households, 45 are eliminated outright” — counts households as reconstructed, which repeatedly proves to be too few men. Candidate A was one household and is two. Candidate C was one and is two. Great Berkhamsted alone holds four contemporaneous Gurney households rather than the one it was carried as. Stewkley holds two, and Longdon in Worcestershire is a father and a son. Every household tested for this defect has split. Any elimination that rests on a household’s shape must state the shape hypothesis explicitly and be marked conditional on it.[10]

Requiring the whole child set is a filter built to return nothing. Against seventeenth-century registers, demanding Mary and Richard and John in one household is not a test; it is a guarantee of a null result. One child of the right name in the right window is the threshold; two is a strong hit. Applied properly, the England-wide sweep returns exactly one unaccounted-for record — Mary Gurny, Hitcham, 1631 — where the stricter form returned none.[11]

A negative is a statement about an instrument until it is controlled. Every sweep must return a record already known to exist and in scope before its zero means anything. Two false England-wide negatives were manufactured inside eight days by uncontrolled queries, and both were caught by that control: the “Stewkley register silence after 1614,” which was true of one dataset and false of the parish, and the “no Gurney burial at Great Berkhamsted at any date,” where the parish in fact holds sixteen. No index is complete and the gaps between them do not coincide — tested cell by cell across four providers.[12]

And a whole class of negatives is void. In a single-dataset query on the principal provider, a year bound and a place keyword cannot be combined: the pair fails closed. Proven directly — a set holding a 1616 Epping baptism returns 349 Smith baptisms at Epping with no year bound, and zero for the same parish bounded to 1616. Any negative anywhere in this research resting on both parameters at once is void and must be re-run without the year. The related parameter sortby is accepted and silently ignored, so a set’s earliest coverage year cannot be established by sorting either.[13] Evidence

The field after the test

Candidate Standing Ground
A(i) — the 1641 certificate man, Bierton → Northamptonshire Eliminated Taxed in Northamptonshire and out of the Aylesbury half-hundred in 1641; tenant at Walgrave 1650
A(ii) — the St Mary Aylesbury father Eliminated Fathering children in England 1638–1653
B — son of Francis Gurney and Margaret Rybett Open, 11% The leading named candidate; a context with no household
Ackworth, Yorkshire Open, 8% The only unaccounted-for John × Mary marriage in England before 1660; register now read leaf by leaf, so the departure signature is the strongest in the file and the compiled-tradition support fails. A possible departure point rather than an origin candidate — the groom was an incomer and this is the bride’s parish
Cheddington 1608, son of Richard Open, 6% Reached by prediction from the naming custom; no household of his own
C(i) — the elder Great Berkhamsted John Eliminated Fathering from 1597, so born c.1570–75, a generation too early
C(ii) — the younger Great Berkhamsted John Open, 6% Best documented age fit in the field; the 1638 burial that would have collapsed him reads “son of Thomas”; no Mary in the parish at any date
D — London draper, Old Change Open, 4% Continuing London residence to 1662, on an address-continuity reading
Epping / North Weald line Open, 3% Household attributes untested rather than absent; the coverage negative is void
Newgate apprentice (1636) Open, 2% Born c.1615, twelve years off; an indentured servant with no household
Weston Turville — John baptised 1604, son of Thomas the tailor Open, 5% The best documented age fit in the corpus, and the only man carrying age, trade and a colonial-side channel together; never scored until August 2026. A parish burial of 1625 could be him, and one will decides
Weston Turville 1627 father Open, 2% The residual after the row split; may be the 1604 man. Empty on the child core; burial negative genuine
Hitcham head Open, 3% The only unaccounted-for colonial-name child to a father John in Britain; a singleton with no mother recorded
Bucks / Herts / Beds heads cleared as a group Open, 3% Buckinghamshire swept and empty, not one John Gurney bride a Mary; the Bedfordshire arm is not swept, and Eaton Bray 1606 has never been worked
A(1603) — the Stewkley baptism, if distinct Open, 2% Closest age match in the corpus; a Stewkley burial of 1615 may be him
Gurley of Westminster Open, 2% Right parents, right eldest daughter, wrong sons, doubtful surname
Norwich St Peter Mancroft — John Gurny and “Marg.” Open, 2%, flagged The only Gurney household found with a father John and a Margaret-family mother; it surfaced on the burial arm. A second, closer-to-source transcription of the same register does not contain the burial, so the original register decides
Stewkley 1611, son of Robert Open, 2% About forty-two in 1653; no record after baptism
Same-name clearance sweep Eliminated Died in England, wrong wife, wrong trade or wrong generation

The remaining probability — thirty-seven percent, and still the largest share in the model — sits on three rows that describe the state of the record rather than a man: no record survives at 21%, documented but never assembled at 11%, and documented but in a source not yet searched at 5%. The unassembled row funded the Weston Turville rows above, which is that row’s own mechanism firing: a baptism, a tailor father, a Clothworkers brother and a parish adjacency all sat in the corpus and had never been joined. Their basis and the reasoning behind each number are in the assessment unit.[14]

The cleared households of the clearance sweep are not restated one by one here. Their household-by-household enumeration, each with its single strongest elimination ground, is published as the case file’s §8.8 table, which this unit cross-references as the master list.[15] Full working detail for each principal candidate sits in its own topic: Candidate A and the Buckinghamshire cluster, Candidate B, Berkhamsted, Candidate D, Ackworth and other eliminations.[16] Evidence

  1. Colonial Braintree community, G13-RI-000047 (“a tailor by trade, a husbandman by economy”), cited here cross-unit. The attestation is the 12 February 1661/2 Braintree conveyance; it is primary and single-attested, and no John Gurney is styled tailor anywhere in the pre-1700 full-text corpus. Source IDs: bates-ancient-iron-works-braintree-1898; familysearch-fulltext-search. ↩︎

  2. Family — wives and marriages, G13-RI-000063 (first wife Mary); Family — the children as a family group, G13-RI-000065 (the child roster), both cited here cross-unit. ↩︎

  3. Mary Gurney’s marriage to Daniel Shed at Braintree in 1647 is in Samuel A. Bates, ed., Records of the Town of Braintree, 1640 to 1793 (1886), and in Torrey, New England Marriages Prior to 1700; at a minimum marriage age of sixteen she was born by 1631. This is a primary constraint, and it is the only one of the children’s dates that is. The compiled estimates Mary c.1628, Richard c.1630 and John Jr. c.1633 come from Sprague (2001), p. 695, and the History of Weymouth (1923), vol. 3, p. 251, and must weigh less. Source IDs: braintree-records-1640-1793-1886; torrey-new-england-marriages-prior-1700; sprague-braintree; history-of-weymouth. ↩︎

  4. Origin — age and baptism, G13-RI-000069 (the 1652/3 deposition) and G13-RI-000070 (born c.1602–1610), cited here cross-unit. ↩︎

  5. Colonial arrival chronology, G13-RI-000006 (arrival window 1638–early 1641), cited here cross-unit. John’s first colonial record is the Weymouth petition of 30 May 1641 and the General Court’s remission of 2 June, which also names the men he was with — Richard Porter and James Ludden of Weymouth. Source IDs: massachusetts-bay-records-v1-1853; porter-genealogy-richard-porter-1878. ↩︎

  6. David Hackett Fischer, Albion’s Seed: Four British Folkways in America (New York: Oxford University Press, 1989), pp. 13–205, the Puritan migration context for Massachusetts Bay. Source ID: fischer-albions-seed-1989. Robert Charles Anderson, The Great Migration Directory, 2nd ed. (Boston: NEHGS, 2025), p. 158, placing John Gurney in the Great Migration-era Boston/Braintree settlements. Validation note: sources/validations/anderson-gmd-2015.md. Source ID: anderson-gmd-2015. ↩︎

  7. FindMyPast, all parish-baptism collections, wildcarded across the Gurney surname family, Great Britain: no Peter baptism 1627–1647 and no Isaac 1632–1652. Peter first appears in George Madison Bodge, Soldiers in King Philip’s War (1891), p. 114; Isaac in the Plymouth Colony court order of 1 March 1663/4. Sarah has no primary record and does not appear in Torrey. Source IDs: findmypast-uk-parish-baptisms; bodge-soldiers-king-philips-war-1891; familysearch-fulltext-search; torrey-new-england-marriages-prior-1700. ↩︎

  8. 38-the-shape-and-the-two-families.md. Cross-reference, not a source. ↩︎

  9. The continuing-residence, wrong-wife and wrong-generation grounds across the wider sweep rest on the FindMyPast Buckinghamshire Baptism, Burial and Marriage indexes (Source IDs: findmypast-bucks-baptism-index; findmypast-bucks-burial-index; findmypast-bucks-marriage-index), FindMyPast UK Parish Baptisms and the county baptism and marriage sets (Source IDs: findmypast-uk-parish-baptisms; findmypast-county-baptism-sets-2026-07-sweep), FreeREG (Source ID: freebmd-freereg), the May 2026 supplementary same-name sweep (Source ID: findmypast-john-gurney-2026may-supplementary-same-name-sweep), and the Prerogative Court of Canterbury probate corpus (Source ID: tna-pcc-gurney-elimination-corpus). Worked through in Candidate A and Other eliminations, both cited here cross-unit. ↩︎ ↩︎

  10. Candidate A’s split is in 31-candidate-a-aylesbury.md; Berkhamsted’s in 33-berkhamsted-candidates.md; Stewkley’s turns on Robert Gurney’s marriage to Joan Fenn at Stewkley on 10 July 1626, six months after Richard was baptised there on 25 January 1625/6, so Joan is not Richard’s mother and Robert had two wives; Longdon, Worcestershire, has two John marriages (Fraunces Price 1602, Dorothy Tuffley 1625) plus a third wife Isabell by 1639. Source IDs: freebmd-freereg; findmypast-uk-parish-baptisms. ↩︎

  11. The threshold correction and the sweep that applies it are worked at 62-refactor-the-per-child-sweep.md and 72-refactor-the-parent-sweep-completed.md. Across Great Britain 1615–1649, on a complete year-sliced parent-name enumeration of 598 rows, exactly one baptism to a father named John Gurney gives a colonial child forename in window and belongs to no otherwise-accounted-for household: Mary Gurny, Hitcham, 22 January 1631. It remains a floor for three stated reasons — the pool does not reach every county set, no single index is complete, and five year-slices lost rows to a pagination defect. Working dataset at sources/intake/archive/g13-july-2026-sweeps/fmp-parent-sweep-2026-07-28/. Source ID: findmypast-uk-parish-baptisms. ↩︎

  12. The Stewkley correction is at 62-refactor-the-per-child-sweep.md: the parish holds Gurney baptisms at 1615 (two, one Anthony), 1616 (Anne), 1618 and 1626 (Richard), the named ones all to a father Robert, matching the 1618, 1631 and 1651 Stewkley probates. The Berkhamsted correction is at 33-berkhamsted-candidates.md. The four-provider comparison is at 68-refactor-four-instruments-compared.md: Ancestry’s IGI-derived set lacks Hitcham 1631, Great Berkhampstead 1626, Stewkley 1626 and Aylesbury 1638; FreeREG lacks Hitcham, Berkhampstead and Aylesbury but holds Stewkley; FindMyPast and FamilySearch hold all four. Source IDs: findmypast-bucks-baptism-index; ancestry-england-select-births-christenings-9841; freebmd-freereg; fs-england-births-christenings; findmypast-uk-parish-baptisms. ↩︎

  13. FindMyPast, authenticated session, 29 July 2026, Essex Baptisms (sid=103): lastname=smith&keywords=epping with no year bound returns 349 results; the same query with yearofbaptism=1616&yearofbaptism_offset=5 returns 0, and with yearofbaptism=1600&yearofbaptism_offset=5 returns 0, in a set that demonstrably holds a 1616 Epping baptism under another surname. sortby=dateasc on the unbounded query leaves the result order unchanged, so the parameter is accepted and ignored. The defect joins three already documented — keywords failing closed on a wrong place token, place tokens differing between sets of the same county, and yearofbaptism broken outright in the Worcestershire, Somerset and Dorset sets. Recorded as a reusable instrument defect in .claude/skills/findmypast-record-search/SKILL.md. Source ID: findmypast-county-baptism-sets-2026-07-sweep. ↩︎

  14. Identity — assessment. Cross-reference, not a source. ↩︎

  15. Cross-reference, not a source. John Gurney identity case file, §8.8, “Same-name clearance sweep,” and the §8.3 Buckinghamshire and Chiltern cluster: the household-by-household table of every remaining same-name English John Gurney, each with its single strongest elimination ground. The evidence under those rows is the record sweeps cited at [9]; the case file is the published enumeration of them, deliberately not replicated household by household in this graph. ↩︎

  16. Provenance. Assimilated 2026-07-07: Candidate A — Aylesbury, Buckinghamshire (topicId g13-identity-candidate-a, from research/topics/john-gurney-candidate-aylesbury-buckinghamshire.md); Ackworth, Yorkshire (topicId g13-identity-candidate-ackworth); Other Eliminations and Earsham (topicId g13-identity-other-eliminations); and Candidate D — London draper, Old Change (topicId g13-identity-london-candidate). Assimilated 2026-07-10: research/topics/john-gurney-candidate-berkhamsted-hertfordshire.md. Authored 2026-07-30, when Candidate C was given a unit of its own on the split into two men: Berkhamsted: Candidates C(i) and C(ii) (topicId g13-identity-candidate-c). ↩︎