JB
John Brooks — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Brooks across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Agnes & Earl — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | New Worker |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | New Worker |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Clouse | Daughter | — | 23 | ~1917 |
| Agnes Brooks | Head | — | 50 | ~1890 |
| Harry Clouse | Other | — | 26 | ~1914 |
| Robert Clouse | Other | — | 5 | ~1935 |
| Myles Brooks | Son | — | 18 | ~1922 |
| John Brooks | Son | — | 21 | ~1919 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 1
Allegheny, Pennsylvania · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| 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 11
Allegheny, Pennsylvania · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| 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/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 21
Allegheny-County, Pennsylvania · implied b. ~1919 — 6 household members
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Occupation | New Worker |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 John Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Agnes Brooks (~0.92 confidence) and father Earl Brooks (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Agnes Brooks
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
Earl Brooks
b. ~1892
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Brooks
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Catherine Clouse
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myles Brooks
Sibling · 1940 · age 18
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-t0627-03665-00075)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edith Pobicki | 4 | Daughter | — | Pennsylvania |
| 2 | John J. Pobicki | 2 | Son | — | Pennsylvania |
| 3 | William D. Giles | 52 | Head | Carpenter | Pennsylvania |
| 4 | Albertina Giles | 49 | Wife | — | Pennsylvania |
| 5 | Wilfred S. Giles | 18 | Son | — | Pennsylvania |
| 6 | Albertina Polivka | 26 | Daughter | Sales Lady | Pennsylvania |
| 7 | Clara M. Martin | 9 | Grand child | — | Pennsylvania |
| 8 | Mary Polivka | 3 | Grand child | — | Pennsylvania |
| 9 | Louis B. Wentz | 67 | Head | Butcher | Lithuania |
| 10 | Anna Wentz | 56 | Wife | — | Germany |
| 11 | Louis G. Wentz | 28 | Son | Janitor | Pennsylvania |
| 12 | John G. Wentz | 26 | Son | Printer | Pennsylvania |
| 13 | Lillian Wentz | 19 | Daughter | Stenographer | Pennsylvania |
| 14 | George Wenge | 60 | Head | Bartender | Lithuania |
| 15 | Joseph Novels | 36 | Head | Traffic Court Cashier | Pennsylvania |
| 16 | Olga Novels | 32 | Wife | Stenographer | Pennsylvania |
| 17 | Emily Novels | 15 | Daughter | — | Pennsylvania |
| 18 | Donald Novels | 9 | Son | — | Pennsylvania |
| 19 | Andrew J. Haney | 48 | Head | Laborer | Ohio |
| 20 | Mae Haney | 38 | Wife | — | Pennsylvania |
| 21 | Agnes Haney | 17 | Daughter | — | Pennsylvania |
| 22 | Agnes R. Brooks | 50 | Head | — | Pennsylvania |
| 23 | John Brooks THIS PERSON | 21 | Son | New Worker | Pennsylvania |
| 24 | Myles Brooks | 18 | Son | New Worker | Pennsylvania |
| 25 | Harry Clouse | 26 | Son in Law | File Clerk | Pennsylvania |
| 26 | Catherine Clouse | 23 | Daughter | — | Pennsylvania |
| 27 | Robert Clouse | 5 | Grand son | — | Pennsylvania |
| 28 | Mary Delich | 40 | Head | — | Yugoslavia |
| 29 | Robert Delich | 18 | Son | New Worker | Pennsylvania |
| 30 | Daniel Delich | 12 | Son | — | Pennsylvania |
| 31 | Anthony M. Tamlitto | 29 | Head | Radio Service | New York |
| 32 | Ellen Tamlitto | 29 | Wife | Butter Wrapper | Pennsylvania |
| 33 | Margaret Morrissey | 60 | Head | — | Ireland |
| 34 | Gertrude Higgins | 48 | Head | Land Lady | Pennsylvania |
| 35 | Elizabeth Cashy | 16 | Lodger | Kitchen Work | Pennsylvania |
| 36 | Thomas Clarke | 55 | Lodger | Machinist | Pennsylvania |
| 37 | James Donlley | 28 | Lodger | Circular Distributor | Pennsylvania |
| 38 | Edward Nutzhowski | 62 | Lodger | Cook | Pennsylvania |
| 39 | Margaret Rupert | 57 | Lodger | — | Pennsylvania |
| 40 | Marie Mccloskey | 45 | Head | — | Pennsylvania |
Pedigree Summary
John + 2 siblings
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)