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William Brock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jackson-County, Missouri
Our Model Tree links this William Brock across the 1930 and 1940 US Censuses in Jackson-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jackson-County, Missouri |
| Surname | Brock |
| Given Name | William Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Kansas City |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Nemeritta Brock | Daughter | — | 5 | ~1935 |
| Opal Brock | Daughter | — | 19 | ~1921 |
| Eugene Brock | Son | — | 13 | ~1927 |
| William Brock | Head | — | 57 | ~1883 |
| Bula Brock | Daughter | — | 19 | ~1921 |
| Lola Brock | Daughter | — | 19 | ~1921 |
| Anna Brock | Spouse | — | 51 | ~1889 |
| William Brock | Son | — | 11 | ~1929 |
Census Appearances
1930
Jackson, Missouri
Son, age 1
Jackson, Missouri · implied b. ~1929 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brock |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Can Read/Write | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Jackson-County, Missouri
Son, age 11
Jackson-County, Missouri · implied b. ~1929 — 8 household members
| Surname | Brock |
| Given Name | William Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 William Brock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Brock
Son · 1940 · age 11 · b. ~1929 · Missouri
★ You are viewing this record
Sibling
Bula Brock
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lola Brock
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Opal Brock
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Brock
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nemeritta Brock
Sibling · 1940 · age 5
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 — Jackson-County, Missouri
Open full size
1940 US Federal Census — Jackson-County, Missouri
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-02178-00122)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Golden | 47 | Wife | — | Illinois |
| 42 | Max C. Golden | 21 | Son | New Worker | Missouri |
| 43 | Lester Lee | 38 | Head | Route Supervisor | Arkansas |
| 44 | Ella Lee | 35 | Wife | — | Kentucky |
| 45 | Geraldine Lee | 17 | Daughter | Sales Girl | Missouri |
| 46 | Willis Lee | 15 | Son | — | Missouri |
| 47 | Larry R. Lee | 2 | Son | — | Missouri |
| 48 | Clyde E. Blann | 27 | Head | Mechanist | Missouri |
| 49 | Wilma Blann | 18 | Wife | — | Missouri |
| 50 | Robert Gene Blann | 1 | Son | — | Missouri |
| 51 | Lana Jackson | 55 | Mother-in-law | Housekeeper | Missouri |
| 52 | Walter C. Remy | 34 | Head | Route Salesman | Kansas |
| 53 | Verdie Remy | 38 | Wife | — | Missouri |
| 54 | Marnie Remy | 16 | Daughter | — | Missouri |
| 56 | Marie Stump | 43 | Head | Janitress | Missouri |
| 57 | Roland Stump | 17 | Son | — | Missouri |
| 58 | Robert Stump | 11 | Son | — | Missouri |
| 59 | Charles Mckinney | 67 | Head | Laborer | Missouri |
| 60 | Emma Mckinney | 58 | Wife | — | Missouri |
| 61 | Elvia Mckinney | 8 | Granddaughter | — | Missouri |
| 63 | Woodard Graham | 47 | Head | Truck Driver | Missouri |
| 64 | Susie Graham | 42 | Wife | — | Missouri |
| 65 | William Graham | 18 | Son | New Worker | Missouri |
| 66 | Marianna Pough | 21 | Daughter | Waitress | Iowa |
| 67 | Richard Humphrey | 51 | Head | Bundle Wrapper | Missouri |
| 68 | Adeline Humphrey | 16 | Wife | — | Missouri |
| 69 | John Sayers | 45 | Head | Mechanic Maintenance | Missouri |
| 70 | Willie Sayers | 40 | Wife | — | Missouri |
| 71 | Viola Drury | 22 | Daughter | — | Iowa |
| 72 | William P. Brock | 57 | Head | Laborer | Kansas |
| 73 | Anna Brock | 51 | Wife | — | Kansas |
| 74 | Bula Brock | 19 | Daughter | New Worker | Kansas |
| 75 | Lola Brock | 19 | Daughter | — | Kansas |
| 76 | Opal Brock | 19 | Daughter | — | Kansas |
| 77 | Nemeritta Brock | 5 | Daughter | — | Kansas |
| 78 | Eugene Brock | 13 | Son | — | Missouri |
| 79 | William Henry Brock THIS PERSON | 11 | Son | — | Missouri |
| 80 | Frank Humphrey | 59 | Head | Auditor | Kansas |
Related Census Records
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)