JT
John Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Luzerne-County, Pennsylvania
Our Model Tree links this John Thomas across the 1920, 1930 and 1940 US Censuses in Luzerne-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William — first a head (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Male
Head
Born: Wales
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Luzerne-County, Pennsylvania |
| Surname | Thomas |
| Given Name | John Martin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Wilkes Barre |
| 1935 Residence (County) | Luzerne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 364 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Occupation | Miner |
| Township / Ward | Wilkes Barre |
| Est. Birth Year | ~1893 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Thomas | Head | — | 47 | ~1893 |
| Robert Thomas | Son | — | 18 | ~1922 |
| Thomas Thomas | Son | — | 3 | ~1937 |
| Elizabeth Thomas | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Venango, Pennsylvania
Son, age 25
Venango, Pennsylvania · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Wales |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Molder |
| Industry | Foundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1930
Luzerne, Pennsylvania
Head, age 35
Luzerne, Pennsylvania · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1912 |
| Age at First Marriage | 20 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Laborer |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Welsh |
| Home Owned/Rented | R |
| Home Value / Rent | $15 |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Luzerne-County, Pennsylvania
Head, age 47
Luzerne-County, Pennsylvania · implied b. ~1893 — 4 household members
| Surname | Thomas |
| Given Name | John Martin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Wilkes Barre |
| 1935 Residence (County) | Luzerne |
| Naturalization Status | Naturalized |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 364 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Thomas across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father William Thomas (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Thomas
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Thomas
Head · 1940 · age 47 · b. ~1893 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Luzerne-County, Pennsylvania
Open full size
1940 US Federal Census — Luzerne-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03562-00329)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thaddeus Catrovski | 43 | Head | Miner | Poland |
| 42 | Julia Catrovski | 42 | Wife | — | Austria |
| 43 | John Catrovski | 22 | Son | — | Pennsylvania |
| 44 | Teresa Catrovski | 18 | Daughter | — | Pennsylvania |
| 45 | Anna Catrovski | 15 | Daughter | — | Pennsylvania |
| 46 | Barbara Catrovski | 12 | Daughter | — | Pennsylvania |
| 47 | Charles M. Fridley | 66 | Head | — | Pennsylvania |
| 48 | Anna G. Fridley | 64 | Wife | — | Pennsylvania |
| 49 | Bert Dickon Fridley | 23 | Son | Wrapper | Pennsylvania |
| 50 | Margaret Mcneill | 13 | Granddaughter | — | Pennsylvania |
| 51 | Samuel K. Fullagar | 22 | Head | Key Worker | Pennsylvania |
| 52 | Marie Fullagar | 18 | Wife | — | Pennsylvania |
| 53 | Samuel Jr. Fullagar | 1 | Son | — | Pennsylvania |
| 54 | John Martin Thomas THIS PERSON | 47 | Head | Miner | Wales |
| 55 | Elizabeth Thomas | 44 | Wife | — | Wales |
| 56 | Robert Thomas | 18 | Son | New Worker | Pennsylvania |
| 57 | Thomas Thomas | 3 | Son | — | Pennsylvania |
| 58 | Steve Hrycyk | 53 | Head | Laborer | Austria |
| 59 | Pauline Hrycyk | 51 | Wife | — | Austria |
| 60 | George Hrycyk | 28 | Son | Laborer | Pennsylvania |
| 61 | Anthony Hrycyk | 24 | Son | Laborer | Pennsylvania |
| 62 | Anna Hrycyk | 21 | Daughter | New Worker | Pennsylvania |
| 63 | Helen Hrycyk | 20 | Daughter | — | Pennsylvania |
| 64 | Joseph Kryznel | 47 | Head | — | Poland |
| 65 | Anna Kryznel | 47 | Wife | — | Poland |
| 66 | Theodore Kryznel | 19 | Son | — | Pennsylvania |
| 67 | Stella Kryznel | 16 | Daughter | — | Pennsylvania |
| 68 | Stanley Kryznel | 13 | Son | — | Pennsylvania |
| 69 | Fred Kryznel | 12 | Son | — | Pennsylvania |
| 70 | Jennie Kryznel | 10 | Daughter | — | Pennsylvania |
| 71 | Andrew Petroski | 47 | Head | — | Poland |
| 72 | Helen Petroski | 15 | Daughter | — | Pennsylvania |
| 73 | Michael Maritaly | 72 | Head | — | Austria |
| 74 | William Maritaly | 52 | Son | Laborer | Pennsylvania |
| 75 | Michael Maritaly | 32 | Son | Laborer | Pennsylvania |
| 76 | William Davis | 57 | Head | Counter Man | Pennsylvania |
| 77 | Margaret Davis | 55 | Wife | — | Pennsylvania |
| 78 | Frank Kamaka | 50 | Head | Miner | Poland |
| 79 | Polonia Kamaka | 50 | Wife | — | Poland |
| 80 | Joseph Yancoski | 49 | Head | — | Galicia |
Pedigree Summary
John
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)