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William Wallace — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Wallace across the 1910, 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Joseph & Josiah — first a son (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Wallace |
| Given Name | William R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Swissvale Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Civil Engineer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Civil Engineer |
| Township / Ward | Swissvale Borough |
| Est. Birth Year | ~1906 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Joseph Wallace | Head | — | 75 | ~1865 |
| William Wallace | Son | — | 34 | ~1906 |
| Ida Wallace | Spouse | — | 63 | ~1877 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | William R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 24
Allegheny, Pennsylvania · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | William R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| 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 34
Allegheny-County, Pennsylvania · implied b. ~1906 — 3 household members
| Surname | Wallace |
| Given Name | William R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Swissvale Borough |
| 1935 Residence (County) | Allegheny |
| Occupation | Civil Engineer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 William Wallace across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Wallace (~0.92 confidence) and father Josiah Wallace (~0.92 confidence) and father Joseph Wallace (~0.92 confidence) and mother Ella Wallace (~0.92 confidence) and mother Ada Wallace (~0.92 confidence) and mother Ida Wallace (~0.92 confidence) and father William Wallace (~0.92 confidence) and mother Mary Wallace (~0.92 confidence). The pedigree spans 1 generation with 8 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Wallace
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Josiah Wallace
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Joseph Wallace
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Ella Wallace
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Ada Wallace
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Ida Wallace
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
William Wallace
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Mary Wallace
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Wallace
Son · 1940 · age 34 · b. ~1906 · 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-t0627-03418-00831)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Conley | 25 | Son | — | Pennsylvania |
| 2 | Frank Hughes | 61 | Head | Grinder | Pennsylvania |
| 3 | Sara S. Hughes | 60 | Wife | — | Scotland |
| 4 | Rosalind Hughes | 31 | Daughter | Supervisor | Pennsylvania |
| 5 | Beatrice Hughes | 17 | Daughter | — | Pennsylvania |
| 6 | Christopher Hughes | 34 | Son | Clerk | Pennsylvania |
| 7 | Christopher Jr. Hughes | 9 | Grandson | — | Pennsylvania |
| 8 | John Hughes | 7 | Grandson | — | Pennsylvania |
| 9 | Mary Alice Hughes | 5 | Granddaughter | — | Pennsylvania |
| 10 | Leonard Jones | 45 | Head | Pharmacist | Pennsylvania |
| 11 | Edna D. Jones | 43 | Wife | — | Pennsylvania |
| 12 | William Jones | 13 | Son | — | Pennsylvania |
| 13 | Betty Lou Jones | 11 | Daughter | — | Pennsylvania |
| 14 | Nellie Jones | 73 | Mother | — | Wales |
| 15 | Edward Gorgnetta|Gorguetta | 47 | Head | Stationary Engineer | Pennsylvania |
| 16 | Gertrude Gorgnetta|Gorguetta | 48 | Wife | — | Pennsylvania |
| 17 | T. Edward Gorgnetta|Gorguetta | 16 | Son | — | Pennsylvania |
| 18 | Michael Grant | 80 | Father-in-law | — | Pennsylvania |
| 19 | Rose Ann Grant | 73 | Mother-in-law | — | Pennsylvania |
| 20 | Joseph R. Wallace | 75 | Head | — | Pennsylvania |
| 21 | Ida E. Wallace | 63 | Wife | — | Pennsylvania |
| 22 | William R. Wallace THIS PERSON | 34 | Son | Civil Engineer | Pennsylvania |
| 23 | Margaret S. Hopkins | 56 | Head | — | Pennsylvania |
| 24 | John D. Meigs | 33 | Head | Salesman | Pennsylvania |
| 25 | Carolyn S. Meigs | 31 | Wife | — | Pennsylvania |
| 26 | John S. Meigs | 8 | Son | — | Pennsylvania |
| 27 | William Meigs | 5 | Son | — | Pennsylvania |
| 28 | Donald Meigs | 1 | Son | — | Pennsylvania |
| 29 | Edwin D. Carlson | 24 | Head | Furnace Tender | Pennsylvania |
| 30 | Helen Carlson | 24 | Wife | Clerk | Maryland |
| 31 | Archibald Baker | 57 | Father-in-law | Boring Mill | Maryland |
| 32 | Ethel Baker | 53 | Mother-in-law | — | Maryland |
| 33 | Harry M. Mcmillan | 46 | Roomer | Laborer | Pennsylvania |
| 34 | Calvin Kendall | 38 | Head | Brakeman | Pennsylvania |
| 35 | Claire Kendall | 38 | Wife | — | Pennsylvania |
| 36 | Joan Kendall | 16 | Daughter | — | Pennsylvania |
| 37 | Darrell Kendall | 14 | Daughter | — | Pennsylvania |
| 38 | Kenneth Kendall | 11 | Son | — | Pennsylvania |
| 39 | Archie Fay | 44 | Head | Machinist | Pennsylvania |
| 40 | Mabel Fay | 43 | Wife | — | Pennsylvania |
Pedigree Summary
William
Gen 1 · 8 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)