RT
Robert Todd — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Robert Todd across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Robert & Alice — 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 | Todd |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Homestead |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Machinist |
| Industry | Steel Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 326 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist |
| Township / Ward | Homestead |
| 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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Alice Todd | Spouse | — | 53 | ~1887 |
| Robert Todd | Head | — | 55 | ~1885 |
| Robert Todd | Son | — | 25 | ~1915 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 6
Allegheny, Pennsylvania · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Todd |
| Given Name | Robert J. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 16
Allegheny, Pennsylvania · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Todd |
| Given Name | Robert D. Jr |
| Relationship to Head | Son |
| 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 25
Allegheny-County, Pennsylvania · implied b. ~1915 — 3 household members
| Surname | Todd |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Homestead |
| 1935 Residence (County) | Allegheny |
| Occupation | Machinist |
| Industry | Steel Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 326 |
| 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 Robert Todd across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Todd (~0.92 confidence) and mother Alice Todd (~0.92 confidence) and mother Alice Todd (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Todd
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Alice Todd
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Alice Todd
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Todd
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
39 people indexed on this census page (nara:1940:m-t0627-03406-00357)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Blanche Bennett | 30 | Wife | — | Pennsylvania |
| 2 | Joan Bennett | 4 | Daughter | — | — |
| 3 | George Grant | 39 | Head | Laborer | Alabama |
| 4 | Ethel Grant | 38 | Wife | — | North Carolina |
| 5 | Frederick Blaylock | 17 | Stepson | — | North Carolina |
| 6 | Lionel Blaylock | 16 | Stepson | — | North Carolina |
| 7 | Alexander Degancisco | 35 | Head | First Line | Pennsylvania |
| 8 | Mary Degancisco | 33 | Wife | Operator | Pennsylvania |
| 9 | Stephen Bodnar | 47 | Head | Straightener | Pennsylvania |
| 10 | Anna Bodnar | 40 | Wife | — | Pennsylvania |
| 11 | Francis Bodnar | 20 | Son | New Worker | Pennsylvania |
| 12 | Thomas Bodnar | 18 | Son | — | Pennsylvania |
| 13 | Stephen Jr. Bodnar | 13 | Son | — | Pennsylvania |
| 14 | Bernadine Bodnar | 10 | Daughter | — | Pennsylvania |
| 15 | Frank Jackson | 52 | Head | — | Pennsylvania |
| 16 | Edna Jackson | 50 | Wife | — | Pennsylvania |
| 17 | Franklin Jackson | 22 | Son | Laborer | Pennsylvania |
| 18 | Ruth Oldham | 26 | Niece | Clerk | Pennsylvania |
| 19 | Russell Oldham | 5 | Niece | — | — |
| 20 | William Curtis | 72 | Head | Paperhanger | Pennsylvania |
| 21 | John Gribble | 55 | Head | Plastering | Pennsylvania |
| 22 | Elizabeth Gribble | 60 | Sister | — | Pennsylvania |
| 23 | James Morrissey | 30 | Nephew | Plaster Helper | Pennsylvania |
| 24 | Albert Inkota | 52 | Head | Craneman | Poland |
| 25 | Sophia Inkota | 40 | Wife | — | Poland |
| 26 | Ray Inkota | 15 | Son | — | Pennsylvania |
| 27 | Helen Inkota | 9 | Daughter | — | Pennsylvania |
| 28 | Robert Todd | 55 | Head | — | Pennsylvania |
| 29 | Alice Todd | 53 | Wife | — | Pennsylvania |
| 30 | Robert Jr. Todd THIS PERSON | 25 | Son | Machinist | Pennsylvania |
| 31 | John F. Mrazik | 47 | Head | Steel Worker | Pennsylvania |
| 32 | Lucy M. Mrazik | 45 | Wife | Steel Worker | Pennsylvania |
| 33 | John Jr. Mrazik | 18 | Son | — | Pennsylvania |
| 34 | Mary Margaret Mrazik | 13 | Daughter | — | Pennsylvania |
| 35 | William Dixon | 68 | Head | Salesman | Pennsylvania |
| 36 | Ellen L. Dixon | 67 | Wife | — | Pennsylvania |
| 37 | Russell Dixon | 40 | Head | Laborer | Pennsylvania |
| 38 | Rhoda Dixon | 36 | Wife | — | Pennsylvania |
| 39 | Oliver Grimsted | 54 | Head | Clerk | England |
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)