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Robert Wallace — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Robert Wallace across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Angie — first a head (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Wallace |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Medical Doctor |
| Industry | Private Practice |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Medical Doctor |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1908 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Kay Wallace | Daughter | — | ~1940 | |
| Robert Wallace | Head | — | 32 | ~1908 |
| Robert Wallace | Son | — | 2 | ~1938 |
| Jean Wallace | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 11
Allegheny, Pennsylvania · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 21
Allegheny, Pennsylvania · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Machinist App |
| Industry | Aluminum Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 32
Allegheny-County, Pennsylvania · implied b. ~1908 — 4 household members
| Surname | Wallace |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Medical Doctor |
| Industry | Private Practice |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 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 Robert Wallace across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Wallace (~0.92 confidence) and mother Angie Wallace (~0.92 confidence) and mother Anna Wallace (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Wallace
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Angie Wallace
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Anna Wallace
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Wallace
Head · 1940 · age 32 · b. ~1908 · 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
39 people indexed on this census page (nara:1940:m-t0627-03674-00108)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Audrey Fague | 16 | Daughter | — | Pennsylvania |
| 42 | George Shipley | 72 | Brother | — | Pennsylvania |
| 43 | Hannah Shipley | 60 | Sister in law | — | Germany |
| 44 | Lawrence Lunn | 51 | Head | Roofer | Ohio |
| 45 | Violet Lunn | 17 | Daughter | — | Pennsylvania |
| 46 | Ruth Lunn | 10 | Daughter | — | Pennsylvania |
| 47 | Louis Burke | 55 | Head | Laborer | Pennsylvania |
| 48 | William Morgan | 65 | Head | — | Pennsylvania |
| 49 | Elizabeth Behart | 29 | Head | — | Georgia |
| 50 | Joseph Dzinc | 25 | Head | Laborer | Pennsylvania |
| 51 | Otto E. Roglin | 57 | Head | Machinist | Germany |
| 52 | Wanda Roglin | 52 | Wife | — | Poland |
| 53 | Robert Roglin | 25 | Son | Office Clerk | Pennsylvania |
| 54 | Elizabeth Roglin | 18 | Daughter | — | Pennsylvania |
| 56 | George A. Wheeler | 63 | Head | Artist | Ohio |
| 57 | David J. Wheeler | 25 | Son | Chemist | Pennsylvania |
| 58 | Louis J. Flower | 30 | Head | Manager | Pennsylvania |
| 59 | Virginia Flower | 30 | Wife | — | Pennsylvania |
| 60 | Thomas L. Flower | 0 | Son | — | Pennsylvania |
| 61 | Elmer J. Meyer | 42 | Head | Operator | Pennsylvania |
| 62 | Catherine C. Meyer | 47 | Wife | — | Pennsylvania |
| 63 | Catherine C. Meyer | 12 | Daughter | — | Pennsylvania |
| 64 | Leonard Bischoffberger | 36 | Lodger | Hardwood Floor Sander | Germany |
| 65 | Jacob Kuhn | 53 | Head | Owner | Germany |
| 66 | Emma A. Kuhn | 50 | Wife | — | Pennsylvania |
| 67 | John Kuhn | 25 | Son | Radio Repairman | Pennsylvania |
| 68 | Charles Kuhn | 23 | Son | Clerk | Pennsylvania |
| 69 | Emma Kuhn | 17 | Daughter | New Worker | Pennsylvania |
| 70 | William Kuhn | 15 | Son | — | Pennsylvania |
| 71 | Thomas Keating | 40 | Head | Hostler | Pennsylvania |
| 72 | Cecelia Keating | 41 | Wife | — | Pennsylvania |
| 73 | Thomas Jr. Keating | 18 | Son | — | Pennsylvania |
| 74 | John Keating | 15 | Son | — | Pennsylvania |
| 75 | Eleanor Keating | 11 | Daughter | — | Pennsylvania |
| 76 | John Yeager | 71 | Lodger | — | Pennsylvania |
| 77 | Robert W. Wallace THIS PERSON | 32 | Head | Medical Doctor | Pennsylvania |
| 78 | Jean Wallace | 29 | Wife | — | Canada |
| 79 | Robert Jr. Wallace | 2 | Son | — | Pennsylvania |
| 80 | Kay Wallace | 0 | Daughter | — | Pennsylvania |
Related Census Records
Pedigree Summary
Robert
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)