RC
Robert Cox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Robert Cox across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Anthony & Genevieve — 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 | Cox |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Dormont |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Engineer |
| Industry | Oil |
| Class of Worker | PW |
| Income (1939) | 1400 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Engineer |
| Township / Ward | Dormont |
| 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 |
|---|---|---|---|---|
| Francis Cox | Daughter | — | 17 | ~1923 |
| Anthony Cox | Head | — | 53 | ~1887 |
| Robert Cox | Son | — | 26 | ~1914 |
| Genevieve Cox | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 5
Allegheny, Pennsylvania · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Industry | at home |
| Can Read | No |
| Can Write | No |
| 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 | Cox |
| Given Name | Robert B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Indiana |
| 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 | Cox |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Dormont |
| 1935 Residence (County) | Allegheny |
| Occupation | Engineer |
| Industry | Oil |
| Class of Worker | PW |
| Income (1939) | 1400 |
| Highest Grade | C 4 |
| 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 Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Anthony Cox (~0.92 confidence) and mother Genevieve Cox (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Anthony Cox
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Genevieve Cox
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Cox
Son · 1940 · age 26 · b. ~1914 · Pennsylvania
★ You are viewing this record
Sibling
Francis Cox
Sibling · 1940 · age 17
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-t0627-03401-00894)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold W. Jones | 20 | Son | — | Pennsylvania |
| 42 | Emma J. Jones | 15 | Daughter | — | Pennsylvania |
| 43 | Emily Wallace | 68 | Mother-in-law | — | England |
| 44 | Amelia W. Braun | 58 | Head | — | Pennsylvania |
| 45 | Roderick G. Timmy | 25 | Head | Salesman | Illinois |
| 46 | Jane G. Timmy | 26 | Wife | — | Illinois |
| 47 | James G. Paul | 51 | Head | Owner | Greece |
| 48 | Catherine Paul | 46 | Wife | — | Germany |
| 49 | Jeannette Paul | 24 | Daughter | Dress | Michigan |
| 50 | Charles E. Paul | 21 | Son | — | Pennsylvania |
| 51 | George G. Anthon | 31 | Son-in-law | Linen Supply | Pennsylvania |
| 52 | Margaret C. Anthon | 26 | Daughter | — | Michigan |
| 53 | Ernest A. Pelgram | 47 | Head | Salesman | Pennsylvania |
| 54 | Ethel M. Pelgram | 42 | Wife | — | Pennsylvania |
| 55 | Mary M. Mcghee | 52 | Sister-in-law | R Nurse | Pennsylvania |
| 56 | Annie M. Lee | 67 | Head | — | Missouri |
| 57 | Paul A. Lee | 36 | Son | Golf Instructor | Pennsylvania |
| 58 | Nell Lee | 32 | Daughter-in-law | Stenographer | Pennsylvania |
| 59 | Anthony B. Cox | 53 | Head | Engineer | Indiana |
| 60 | Genevieve Cox | 49 | Wife | — | Pennsylvania |
| 61 | Robert B. Cox THIS PERSON | 26 | Son | Engineer | Pennsylvania |
| 62 | Francis V. Cox | 17 | Daughter | — | Pennsylvania |
| 63 | George T. Luehm | 45 | Head | Clerk | Pennsylvania |
| 64 | Nellie B. Luehm | 44 | Wife | — | Pennsylvania |
| 65 | Steven A. Bodkin | 60 | Head | Post Master | Pennsylvania |
| 66 | Sarah A. Bodkin | 55 | Wife | — | Pennsylvania |
| 67 | Elsie J. Daly | 26 | Maid | House Keeper | Pennsylvania |
| 68 | John P. Radcliffe | 63 | Head | Salesman | Pennsylvania |
| 69 | Ethel A. Radcliffe | 54 | Wife | — | Pennsylvania |
| 70 | Edward V. Ruggles | 54 | Lodger | Chef | Pennsylvania |
| 71 | Jesse W. Young | 55 | Head | Stock Salesman | Pennsylvania |
| 72 | Gertrude Young | 52 | Wife | Music Teacher | Pennsylvania |
| 73 | Alice G. Petts | 81 | Aunt | — | Pennsylvania |
| 74 | Olive Young | 50 | Lodger | — | Pennsylvania |
| 75 | Oscar L. Graup | 47 | Head | Salesman | Pennsylvania |
| 76 | Louise M. Graup | 50 | Wife | — | Pennsylvania |
| 77 | Bertha Frew | 69 | Mother-in-law | — | Pennsylvania |
| 78 | James Graup | 8 | Son | — | Pennsylvania |
| 79 | Lucas Jr. Minehart | 21 | Lodger | Serviceman | Pennsylvania |
| 80 | Amanda Stiening | 70 | Head | — | Ohio |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 2 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)