RA
Robert Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Robert Anderson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Aaron — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Anderson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Steel |
| Industry | PW |
| Highest Grade | C-4 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Steel |
| Township / Ward | Dormont Borough |
| Est. Birth Year | ~1914 |
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 |
|---|---|---|---|---|
| Aaron Anderson | Head | — | 54 | ~1886 |
| Robert Anderson | Son | — | 26 | ~1914 |
| William Anderson | Son | — | 16 | ~1924 |
| Sue Anderson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 4
Allegheny, Pennsylvania · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| 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
Son, age 15
Allegheny, Pennsylvania · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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 26
Allegheny-County, Pennsylvania · implied b. ~1914 — 4 household members
| Surname | Anderson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | Allegheny |
| Occupation | Steel |
| Industry | PW |
| Highest Grade | C-4 |
| 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 Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Anderson (~0.92 confidence) and father Aaron Anderson (~0.92 confidence) and father Harold Anderson (~0.92 confidence) and mother Sue Anderson (~0.92 confidence) and mother Irene Anderson (~0.92 confidence) and mother Margaret Anderson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Anderson
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Aaron Anderson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Harold Anderson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Sue Anderson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Irene Anderson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Margaret Anderson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Anderson
Son · 1940 · age 26 · b. ~1914 · Pennsylvania
★ You are viewing this record
Sibling
William Anderson
Sibling · 1940 · age 16
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-t0627-03401-00867)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph R. Rankin | 4 | Son | — | Pennsylvania |
| 2 | John Rankin | 36 | Head | Telephone | Pennsylvania |
| 3 | Catherine Rankin | 33 | Wife | — | Pennsylvania |
| 4 | Alice Kline | 78 | Aunt | — | Pennsylvania |
| 5 | — | None | — | — | — |
| 6 | Harry W. Stewart | 53 | Head | Dairy | Pennsylvania |
| 7 | Johanna M. Stewart | 55 | Wife | — | Pennsylvania |
| 8 | John M. Fyfe | 57 | Head | Private | New York |
| 9 | Roanna M. Fyfe | 52 | Wife | Insurance | Ohio |
| 10 | Ashley Mcaninch | 32 | Head | Newspaper | Indiana |
| 11 | Florence Mcaninch | 32 | Wife | — | Indiana |
| 12 | Susan Mcaninch | 1 | Daughter | — | Pennsylvania |
| 13 | Frederick Mill | 40 | Head | Superintendent | Ontario |
| 14 | Marian Mill | 38 | Wife | — | Ontario |
| 15 | Russell Church | 44 | Head | High School | Pennsylvania |
| 16 | Jean Church | 43 | Wife | — | Michigan |
| 17 | James Church | 17 | Son | — | Pennsylvania |
| 18 | Helen Church | 16 | Daughter | — | Pennsylvania |
| 19 | Isabell Church | 13 | Daughter | — | Pennsylvania |
| 20 | Aaron Anderson | 54 | Head | Steel | Pennsylvania |
| 21 | Sue E. Anderson | 53 | Wife | — | Pennsylvania |
| 22 | Robert J. Anderson THIS PERSON | 26 | Son | Steel | Pennsylvania |
| 23 | William Anderson | 16 | Son | — | Pennsylvania |
| 24 | Katharine R. Dietz | 65 | Head | — | Pennsylvania |
| 25 | Edmond Dietz | 32 | Son | Laborer | Pennsylvania |
| 26 | Earl J. Dietz | 29 | Son | Laundry | Pennsylvania |
| 27 | Earl Dietz | 5 | Grand Son | — | Pennsylvania |
| 28 | Anne Dietz | 33 | Daughter | Receptionist | Pennsylvania |
| 29 | Marian Dietz | 24 | Daughter | Saleslady | Pennsylvania |
| 30 | Kay Dietz | 24 | Daughter | — | Pennsylvania |
| 31 | J. Thomas Jr. Johnson | 29 | Head | Painting | Pennsylvania |
| 32 | Amy Johnson | 23 | Wife | — | Pennsylvania |
| 33 | Thomas Johnson | 2 | Son | — | Pennsylvania |
| 34 | Joseph Washington | 43 | Head | Chemical | Pennsylvania |
| 35 | Violet Washington | 30 | Wife | Kindergarten | Pennsylvania |
| 36 | Joseph Thomas Johnson | 85 | Head | Oa | Canada |
| 37 | Gertrude Johnson | 64 | Wife | — | Alabama |
| 38 | Wilbert C. Haceman | 41 | Head | Paper Cups | Pennsylvania |
| 39 | Grace Haceman | 41 | Wife | — | Michigan |
| 40 | Wilbert Jr. Haceman | 18 | Son | — | Pennsylvania |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 6 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)