Case summary · October 2026

Where Did John Slater of Simsbury Come From?

John Slaughter/Slater of Windsor and Simsbury, Connecticut (married 1669, died 1713) was very probably the John Slater baptised at St Olave, Southwark, Surrey, on 15 December 1639, son of John Slator, feltmaker. He was brought to Massachusetts as an apprentice by 1656 and lived at Concord until early 1669.

Probable, not proven. No single record names him in both places. The case rests on independent records that agree on name, father's name and trade, county, age, the Slater/Slaughter spelling swap, timing, and possibly handwriting.

The known man: Windsor and Simsbury, 1669–1713

DateEventSource
15 Jul 1669"John Slaughter was married to Abiah that had been wife to [Isaiah] Bartlett" at WindsorWindsor marriages, FamilySearch film 007730421, image 55, p. 61; Stiles, Ancient Windsor vol. 2 p. 692
19 Jan 1669/70Bond for John Slater and others "to come up and be here with yr Families" at Simsbury by May 1671Barber, Record and Documentary History of Simsbury (1931) p. 44
May 1674Proposed as a freeman of Simsbury as "John Slaughter"Public Records of the Colony of Connecticut vol. 2
c.1670–1713Town clerk ("Register") and surveyor of SimsburySimsbury town records, film 007896790
12 Jan 1696/7"The deposition of John Slater Senr Agged about fifty Eight years", signed by himHartford probate files, film 007627711, image 1179
15 Aug 1712Will names wife Abiah and children John, Samuel, Elias, ElizabethManwaring, Digest of Early Connecticut Probate Records vol. 2 p. 296
13 May 1713Died "in the 72d or 73d year of his age"Simsbury vital records p. 19

The Concord apprentice, 1656–1669

A John Slater, son of a Surrey feltmaker, lived in Concord, Massachusetts, from at least 1656 to January 1668/9. All of these are Middlesex County court papers.

"one John Slater sonne [of] John Slater of Surrey Feltmaker was brought over as an apprentice to be taught a trade and after that the sd John the yonger is sold from one to another without respect to his trade whereby the sd youth is much wronged"

Warrant of Deputy Governor Richard Bellingham to the Concord constable, 23 March 1655/6. FamilySearch film 007831263, image 499.

DateRecordSource
7 Mar 1663/4Warrant names "Jno. slaughter for drunkenes"; the constable's return on the back says "John Slater hath paid his fine of 5s"Film 007902664, images 462–463
8 Mar 1663/4Deposition of "John Slater ae abt 24"Wyman, Abstracts of Middlesex Court Files vol. 2 p. 9
8 Mar 1663/4Concord commissioners: John Slater "did confesse that he did writ" the libels posted on the meetinghouseFilm 007902664, image 426
Feb–Mar 1664The two libel verses survive — read them hereFilm 007902664, images 423 and 427
10 Jan 1668/9Robert Williams owes "John Slater ... on pound two shillings & six pence ... if any man in Concord will pay it"Film 007902664, image 944

After January 1668/9 he disappears from Middlesex records. Six months later John Slaughter marries at Windsor.

The Southwark baptism, 1639

The St Olave, Southwark register for December 1639 reads: "John ye sonn of John Slator ffeltmaker ... 15" (London Metropolitan Archives P71/OLA/010). It is the only baptism of a John, son of John Slater, found in Southwark or Surrey between 1634 and 1645. A "John Slator" was buried at St Olave on 10 August 1641; if that was the father, the boy was orphaned before age two.

The evidence compared

PointSouthwark 1639Concord 1656–69Windsor/Simsbury
Name and fatherJohn, son of John SlatorJohn, son of John SlaterJohn Slater/Slaughter
Father's trade, countyFeltmaker, Surrey"of Surrey Feltmaker"—
Birth yearBaptised Dec 1639"abt 24" in 1663/4"about 58" in 1696/7; "72d or 73d year" in 1713
Spelling swap—"slaughter" and "Slater" on one 1664 paper"Slaughter" in marriage and freeman lists, "Slater" in his own hand
Timing—Last record Jan 1668/9First record Jul 1669
Literacy—Wrote long verses in 1664Town clerk for decades

Evidence against, and loose ends

Next steps