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Arthur Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Arthur Thomas across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Margaret — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Arthur H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburg |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Painter |
| Industry | Maintenance |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 110 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Painter |
| Township / Ward | Pittsburg |
| Est. Birth Year | ~1913 |
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 Arthur | Age | Birth yr |
|---|---|---|---|---|
| Margaret Thomas | Head | — | 60 | ~1880 |
| A Thomas | Son | — | 34 | ~1906 |
| Harry Thomas | Son | — | 21 | ~1919 |
| Arthur Thomas | Son | — | 27 | ~1913 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 5
Allegheny, Pennsylvania · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Arthur |
| Relationship to Head | Grand-son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Other, age 16
Allegheny, Pennsylvania · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Arthur |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 27
Allegheny-County, Pennsylvania · implied b. ~1913 — 4 household members
| Surname | Thomas |
| Given Name | Arthur H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburg |
| 1935 Residence (County) | Allegheny |
| Occupation | Painter |
| Industry | Maintenance |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 110 |
| Highest Grade | No 8 |
| 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 Arthur Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Margaret Thomas (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Margaret Thomas
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Thomas
Son · 1940 · age 27 · b. ~1913 · Pennsylvania
★ You are viewing this record
Sibling
A Thomas
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Thomas
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-03657-00370)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dolores Kaduck | 14 | Daughter | — | Pennsylvania |
| 2 | Jean Kaduck | 11 | Daughter | — | Pennsylvania |
| 3 | Harry Ziegler | 37 | Head | Clerk | Pennsylvania |
| 4 | Helen Ziegler | 32 | Wife | — | Pennsylvania |
| 5 | Howard Ziegler | 8 | Son | — | Pennsylvania |
| 6 | June Ziegler | 5 | Daughter | — | Pennsylvania |
| 7 | Emma Ziegler | 68 | Head | Janitress | Germany |
| 8 | Minnie Shannon | 47 | Daughter | Salesgirl | Pennsylvania |
| 9 | Frank Hosemski | 38 | Head | Chauffeur | Pennsylvania |
| 10 | Catherine Hosemski | 38 | Wife | — | Pennsylvania |
| 11 | Dorothy Hosemski | 12 | Daughter | — | Pennsylvania |
| 12 | Thelma Hosemski | 4 | Daughter | — | Pennsylvania |
| 13 | Joseph Ziolkowski | 31 | Head | Truck Driver | Pennsylvania |
| 14 | Helen Ziolkowski | 31 | Wife | — | Pennsylvania |
| 15 | Margaret Thomas | 60 | Head | Tray Woman | Pennsylvania |
| 16 | A. D. Edward Thomas | 34 | Son | Adv. Manager | Pennsylvania |
| 17 | Arthur H. Thomas THIS PERSON | 27 | Son | Painter | Pennsylvania |
| 18 | Harry L. Thomas | 21 | Son | — | Pennsylvania |
| 19 | Clarence Phillips | 58 | Head | Molder | Pennsylvania |
| 20 | Melissa Phillips | 80 | Mother | — | Pennsylvania |
| 21 | Erma Erma | 28 | Sister | Waitress | Pennsylvania |
| 22 | May Erma | 9 | Niece | — | Pennsylvania |
| 23 | George Loren | 43 | Head | Meat Cutter | Czechoslovakia |
| 24 | Genevieve Loren | 32 | Wife | — | Pennsylvania |
| 25 | Anna Loren | 13 | Daughter | — | Pennsylvania |
| 26 | George Jr. Loren | 10 | Son | — | Pennsylvania |
| 27 | Stanley Loren | 4 | Son | — | Pennsylvania |
| 28 | Joseph Modjeska | 27 | Head | Laborer | Pennsylvania |
| 29 | Josephine Modjeska | 24 | Wife | — | Pennsylvania |
| 30 | Anna May Modjeska | 9 | Daughter | — | Pennsylvania |
| 31 | Joseph Jr. Modjeska | 5 | Son | — | Pennsylvania |
| 32 | Ralph Celender | 37 | Head | Labor | Pennsylvania |
| 33 | Alice Celender | 31 | Wife | — | Pennsylvania |
| 34 | Lawrence Celender | 12 | Son | — | Pennsylvania |
| 35 | Robert Celender | 11 | Son | — | Pennsylvania |
| 36 | Dolores Celender | 10 | Daughter | — | Pennsylvania |
| 37 | Charles White | 44 | Head | Labor | Italy |
| 38 | Nettie White | 54 | Wife | — | Pennsylvania |
| 39 | George White | 22 | Son | Labor | Pennsylvania |
| 40 | Marie White | 19 | Daughter | Waitress | Pennsylvania |
Pedigree Summary
Arthur + 2 siblings
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)