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John Brock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harris-County, Texas
Our Model Tree links this John Brock across the 1930 and 1940 US Censuses in Harris-County, Texas (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harris-County, Texas |
| Surname | Brock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Beaumont |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | Justice Precinct 3 |
| Est. Birth Year | ~1929 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Brock | Son | — | 11 | ~1929 |
| Holly Brock | Head | — | 36 | ~1904 |
| Jo Brock | Daughter | — | 9 | ~1931 |
| Holly Brock | Son | — | 5 | ~1935 |
| Lucille Brock | Daughter | — | 8 | ~1932 |
| Edith Brock | Spouse | — | 34 | ~1906 |
| Margaret Brock | Daughter | — | 4 | ~1936 |
Census Appearances
1930
Harris, Texas
Other, age
Harris, Texas · implied b. ~1930 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bruce |
| Given Name | John H. |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Occupation | none |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Harris-County, Texas
Son, age 11
Harris-County, Texas · implied b. ~1929 — 7 household members
| Surname | Brock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Beaumont |
| 1935 Residence (County) | Jefferson |
| Highest Grade | 5 |
| 1935 Residence | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Brock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Brock
Son · 1940 · age 11 · b. ~1929 · Texas
★ You are viewing this record
Sibling
Jo Brock
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Holly Brock
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Brock
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Brock
Sibling · 1940 · age 8
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 — Harris-County, Texas
Open full size
1940 US Federal Census — Harris-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04055-00457)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jimmy Austin | 44 | Head | Pumper | Georgia |
| 42 | Vera Austin | 46 | Wife | — | Georgia |
| 43 | Augusta Austin | 19 | Daughter | — | Georgia |
| 44 | Lucille Austin | 17 | Daughter | — | Georgia |
| 45 | Lois Austin | 14 | Daughter | — | Georgia |
| 46 | Frances Austin | 9 | Daughter | — | Georgia |
| 47 | Elizabeth Austin | 6 | Daughter | — | Texas |
| 48 | Bebrief|Bebriel Wells | 29 | Head | Truck Driver | Arkansas |
| 49 | Irene Wells | 27 | Wife | — | Arkansas |
| 50 | Bernie Jr. Wells | 8 | Son | — | Texas |
| 51 | Arthur Wells | 6 | Son | — | Texas |
| 52 | Lucille Wells | 5 | Daughter | — | Texas |
| 53 | Rose Wells | 3 | Daughter | — | Texas |
| 54 | Genevieve Wells | 1 | Daughter | — | Texas |
| 55 | Geneva Wells | 1 | Daughter | — | Texas |
| 56 | Joseph Wells | 33 | Head | Mechanic | Arkansas |
| 57 | Katherine Wells | 34 | Wife | — | Texas |
| 58 | Alan Wells | 11 | Son | — | Texas |
| 59 | Vera Wells | 9 | Daughter | — | Texas |
| 60 | Donnie Wells | 7 | Daughter | — | Texas |
| 61 | Alma Wells | 6 | Daughter | — | Texas |
| 62 | Veda Wells | 4 | Daughter | — | Texas |
| 63 | Joseph Jr. Wells | 3 | Son | — | Texas |
| 64 | Royce D. Miller | 35 | Head | Owner-Manage | Texas |
| 65 | Lucille Miller | 34 | Wife | — | Texas |
| 66 | Royce D. Jr. Miller | 11 | Son | — | Texas |
| 67 | Francis Miller | 7 | Daughter | — | Texas |
| 68 | Thomas Miller | 2 | Son | — | Texas |
| 69 | Holly C. Brock | 36 | Head | Owner-Agent | Texas |
| 70 | Edith Brock | 34 | Wife | — | Texas |
| 71 | John Brock THIS PERSON | 11 | Son | — | Texas |
| 72 | Jo Ann Brock | 9 | Daughter | — | Texas |
| 73 | Lucille Brock | 8 | Daughter | — | Texas |
| 74 | Holly C. Jr. Brock | 5 | Son | — | Texas |
| 75 | Margaret A. Brock | 4 | Daughter | — | Texas |
| 76 | Alvin Stewart | 46 | Head | Owner- | Arkansas |
| 77 | Lorraine Stewart | 40 | Wife | — | Pennsylvania |
| 78 | Ruby Stewart | 19 | Son | — | Texas |
| 79 | Jessie Stewart | 18 | Son | — | Texas |
| 80 | Margaret Stewart | 13 | Daughter | — | Texas |
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)