JT
Joseph Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Joseph Thompson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Abraham & Abraham — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thompson |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKees Rocks |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Fireman |
| Industry | Borough |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Fireman |
| Township / Ward | Mckees Rocks |
| Est. Birth Year | ~1915 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Abraham Thompson | Head | — | 66 | ~1874 |
| Joseph Thompson | Son | — | 25 | ~1915 |
| Blanche Thompson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 5
Allegheny, Pennsylvania · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read | No |
| Speaks English | Yes |
| Mother Tongue | Hebrew |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 15
Allegheny, Pennsylvania · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Age at First Marriage | 15 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 25
Allegheny-County, Pennsylvania · implied b. ~1915 — 3 household members
| Surname | Thompson |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKees Rocks |
| 1935 Residence (County) | Allegheny |
| Occupation | Fireman |
| Industry | Borough |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Joseph Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Abraham Thompson (~0.92 confidence) and father Abraham Thompson (~0.92 confidence) and father Abe Thompson (~0.92 confidence) and mother Blanche Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Abraham Thompson
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Abraham Thompson
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Abe Thompson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Blanche Thompson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Thompson
Son · 1940 · age 25 · b. ~1915 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03410-00188)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rose Kozemka | 3 | daughter | — | Pennsylvania |
| 42 | Maria Kozemka | 0 | daughter | — | Pennsylvania |
| 43 | Felix Surdyn | 52 | Head | Laborer | Poland |
| 44 | Antoinette Surdyn | 41 | Wife | — | Poland |
| 45 | Edward Surdyn | 22 | Son | Packer | Pennsylvania |
| 46 | Jane Surdyn | 20 | daughter | Dipper | Pennsylvania |
| 47 | Fred Surdyn | 14 | Son | — | Pennsylvania |
| 48 | Frank Pircuk | 45 | Head | Molder | Yugoslavia |
| 49 | Barbara Pircuk | 44 | Wife | Janitress | Yugoslavia |
| 50 | Walter Pircuk | 16 | Son | — | Pennsylvania |
| 51 | Thomas Canavan | 38 | Head | Salesman | Pennsylvania |
| 52 | Mary Canavan | 28 | Wife | — | Pennsylvania |
| 53 | Patricia Canavan | 2 | daughter | — | West Virginia |
| 54 | George Hozeylyk | 53 | Head | Fitter | Austria |
| 55 | Mary Hozeylyk | 57 | Wife | — | Poland |
| 56 | Michael Fedison | 26 | Son-in-law | Waiter | Pennsylvania |
| 57 | Mark Yanko | 54 | Head | Crane Man | Austria |
| 58 | Celia Yanko | 39 | Wife | — | Pennsylvania |
| 59 | Violet Yanko | 22 | daughter | Presser | Pennsylvania |
| 60 | Virginia Yanko | 15 | daughter | — | Pennsylvania |
| 61 | Patricia Yanko | 4 | daughter | — | Pennsylvania |
| 62 | Michael Breychayko | 27 | Head | Machine Operator | Pennsylvania |
| 63 | George Breychayko | 19 | Step-brother | — | Pennsylvania |
| 64 | Vinko Siranovic | 48 | Boarder | — | Austria |
| 65 | Frances Yarkus | 40 | Head | — | Lithuania |
| 66 | Anna Yarkus | 15 | daughter | — | Pennsylvania |
| 67 | Frances Yarkus | 14 | daughter | — | Pennsylvania |
| 68 | Anthony Yarkus | 11 | Son | — | Pennsylvania |
| 69 | Konad Karkoski | 56 | Head | Tester | Czechoslovakia |
| 70 | Joseph Karkoski | 37 | Son | Machine Hand | Pennsylvania |
| 71 | Paul Trink | 57 | Head | Laborer | Austria |
| 72 | Daniel Trink | 53 | Partner | Cook | Austria |
| 73 | Catherine Skidna | 53 | Head | — | Austria |
| 74 | Olga Skidna | 21 | daughter | Beautician | Pennsylvania |
| 75 | Elizabeth Chapka | 43 | Head | — | Pennsylvania |
| 76 | Dorothy Chapka | 11 | daughter | — | Pennsylvania |
| 77 | Stanley Yarzukujas | 55 | Roomer | Wheel Turner | Yugoslavia |
| 78 | Abraham Thompson | 66 | Head | — | Russia |
| 79 | Blanche Thompson | 53 | Wife | — | Russia |
| 80 | Joseph Thompson THIS PERSON | 25 | Son | Fireman | Pennsylvania |
Pedigree Summary
Joseph
Gen 1 · 4 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)