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William Lawson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Lawson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Catherine & William — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Lawson |
| Given Name | William John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Munhall Boro |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Assistant Bricklayer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 378 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Assistant Bricklayer |
| Township / Ward | Munhall Boro |
| Est. Birth Year | ~1917 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Lawson | Head | — | 56 | ~1884 |
| William Lawson | Son | — | 23 | ~1917 |
| Alexander Lawson | Son | — | 29 | ~1911 |
| Catherine Lawson | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawson |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Allegheny, Pennsylvania
Son, age 13
Allegheny, Pennsylvania · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawson |
| Given Name | William D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Allegheny-County, Pennsylvania
Son, age 23
Allegheny-County, Pennsylvania · implied b. ~1917 — 4 household members
| Surname | Lawson |
| Given Name | William John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Munhall Boro |
| 1935 Residence (County) | Allegheny |
| Occupation | Assistant Bricklayer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 378 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 William Lawson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Catherine Lawson (~0.92 confidence) and father William Lawson (~0.92 confidence) and mother Catherine Lawson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Lawson
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
William Lawson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Catherine Lawson
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Lawson
Son · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Alexander Lawson
Sibling · 1940 · age 29
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-t0627-03412-00264)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John J. Davis | 38 | Head | Furnace Man | Pennsylvania |
| 2 | Leona Davis | 27 | Wife | — | Pennsylvania |
| 3 | John W. Davis | 7 | Son | — | Pennsylvania |
| 4 | Sarah A. Davis | 3 | Daughter | — | Pennsylvania |
| 5 | John A. Kostovny | 32 | Head | Crancman | Pennsylvania |
| 6 | Regina Kostovny | 30 | Wife | — | Pennsylvania |
| 7 | Vincent J. Kostovny | 4 | Son | — | Pennsylvania |
| 8 | Arlene G. Kostovny | 0 | Daughter | — | Pennsylvania |
| 9 | William Chambers | 21 | Lodger | Painter | Pennsylvania |
| 10 | Meister Taylor | 27 | Head | Laboratory Hand | Pennsylvania |
| 11 | Helen Taylor | 25 | Wife | — | Pennsylvania |
| 12 | John Taylor | 2 | Son | — | Pennsylvania |
| 13 | R. M. Slater | 47 | Head | Furnace Man | Pennsylvania |
| 14 | Gertrude Slater | 37 | Wife | Salesman | Pennsylvania |
| 15 | Colleen Slater | 16 | Daughter | — | Pennsylvania |
| 16 | Robert O. Thomas | 37 | Head | Metallurgist | Pennsylvania |
| 17 | Catherine Thomas | 35 | Wife | — | Pennsylvania |
| 18 | William H. Crux | 47 | Head | Draftsman | Pennsylvania |
| 19 | Clara Crux | 37 | Wife | — | Pennsylvania |
| 20 | William H. Jr. Crux | 7 | Son | — | Pennsylvania |
| 21 | Audrey Lois Crux | 5 | Daughter | — | Pennsylvania |
| 22 | John Abbott | 47 | Head | Roller | Pennsylvania |
| 23 | Edna M. Abbott | 45 | Wife | — | Pennsylvania |
| 24 | Margaret Louise Abbott | 11 | Daughter | — | Pennsylvania |
| 25 | John Thomas Abbott | 5 | Son | — | Pennsylvania |
| 26 | Melvin C. Lloyd | 24 | Son-in-law | Machinist | Pennsylvania |
| 27 | Lois June Lloyd | 21 | Daughter | — | Pennsylvania |
| 28 | Dorothy Lou Lloyd | 3 | Granddaughter | — | Pennsylvania |
| 29 | Donald Lee Lloyd | 1 | Grandson | — | Pennsylvania |
| 30 | William H. Lawson | 56 | Head | Superintendent | Scotland |
| 31 | Catherine Lawson | 58 | Wife | — | Scotland |
| 32 | Alexander Lawson | 29 | Son | Heat Treater | New York |
| 33 | William John Lawson THIS PERSON | 23 | Son | Assistant Bricklayer | New York |
| 34 | Frank C. Waples | 51 | Head | Clerk | Pennsylvania |
| 35 | Margaret D. Waples | 51 | Wife | — | Pennsylvania |
| 36 | Alice May Mcgill | 9 | Niece | — | Pennsylvania |
| 37 | William B. Anderson | 43 | Head | Clerk | Pennsylvania |
| 38 | Viola Anderson | 39 | Wife | — | Pennsylvania |
| 39 | William Jr. Anderson | 16 | Son | — | Pennsylvania |
| 40 | Barbara Anderson | 12 | Daughter | — | Pennsylvania |
Related Census Records
Pedigree Summary
William + 1 sibling
Gen 1 · 3 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)