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William Brock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Madison-County, Kentucky
Our Model Tree links this William Brock across the 1930 and 1940 US Censuses in Madison-County, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Kentucky |
| Surname | Brock |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. 3 |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag Dist 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 William | Age | Birth yr |
|---|---|---|---|---|
| William Brock | Son | — | 11 | ~1929 |
| Bettie Brock | Daughter | — | 4 | ~1936 |
| Kenneth Brock | Son | — | 16 | ~1924 |
| Mckinley Brock | Head | — | 38 | ~1902 |
| Thelma Brock | Daughter | — | 6 | ~1934 |
| Nancy Brock | Spouse | — | 43 | ~1897 |
| Norman Brock | Son | — | 9 | ~1931 |
Census Appearances
1930
Madison, Kentucky
Son, age 1
Madison, Kentucky · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brock |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Madison-County, Kentucky
Son, age 11
Madison-County, Kentucky · implied b. ~1929 — 7 household members
| Surname | Brock |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. 3 |
| 1935 Residence (County) | Madison |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 · Kentucky
★ You are viewing this record
Sibling
Norman Brock
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Brock
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Brock
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bettie Brock
Sibling · 1940 · age 4
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 — Madison-County, Kentucky
Open full size
1940 US Federal Census — Madison-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01337-00212)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James E Todd | 26 | Head | Salesman | Kentucky |
| 42 | Mckinley Brock | 38 | Head | Farmer | Kentucky |
| 43 | Nancy Brock | 43 | Wife | Housewife | Kentucky |
| 44 | Kenneth Brock | 16 | Son | Farm Laborer | Kentucky |
| 45 | William Brock THIS PERSON | 11 | Son | — | Kentucky |
| 46 | Norman Douglas Brock | 9 | Son | — | Kentucky |
| 47 | Thelma Brock | 6 | Daughter | — | Kentucky |
| 48 | Bettie Brock | 4 | Daughter | — | Kentucky |
| 49 | Sam Tudor | 37 | Head | Farm Laborer | Kentucky |
| 50 | Minnie Perry Tudor | 33 | Wife | Housewife | Kentucky |
| 51 | James Franklin Tudor | 17 | Son | Farm Laborer | Kentucky |
| 52 | Lucy Katherine Tudor | 13 | Daughter | — | Kentucky |
| 53 | Lester Perry Tudor | 11 | Son | — | Kentucky |
| 54 | Martha Marie Tudor | 8 | Daughter | — | Kentucky |
| 55 | Samuel Allen Tudor | 5 | Son | — | Kentucky |
| 56 | Thomas Talbott Tudor | 1 | Son | — | Kentucky |
| 57 | Hix Rollins | 68 | Head | Farming | Kentucky |
| 58 | Maggie Rollins | 58 | Wife | Housewife | Kentucky |
| 59 | Mott B Rollins | 22 | Son | Farmer | Kentucky |
| 60 | Otis Rollins | 20 | Son | Farm Laborer | Kentucky |
| 61 | Henry Rollins | 16 | Son | Pw | Kentucky |
| 62 | Lucy May Rollins | 12 | Daughter | — | Kentucky |
| 63 | Albert Pony | 27 | Head | Farm Laborer | Kentucky |
| 64 | Dora May Pony | 27 | Wife | Housewife | Kentucky |
| 65 | Reva Lee Pony | 7 | Daughter | — | Kentucky |
| 66 | Earl Douglas Pony | 5 | Son | — | Kentucky |
| 67 | Mary Lou Pony | 1 | Daughter | — | Kentucky |
| 68 | Norma Rion | 24 | Head | Farmer | Kentucky |
| 69 | Hester Rion | 22 | Wife | Housewife | Kentucky |
| 70 | Hallie May Rion | 1 | Daughter | — | Kentucky |
| 71 | Jacob Parks | 43 | Head | Farmer | Kentucky |
| 72 | Grace H Parks | 40 | Wife | Housewife | Kentucky |
| 73 | Robert Earl Parks | 22 | Son | Farmer | Kentucky |
| 74 | Clinton A Parks | 19 | Son | — | Kentucky |
| 75 | Zella Francis Parks | 12 | Daughter | — | Kentucky |
| 76 | Jake Fay Parks | 2 | Daughter | — | Kentucky |
| 77 | Dovie Parks | 54 | Sister | House Work For Others | Kentucky |
| 78 | Andrew H Turpin | 32 | Head | Farmer | Kentucky |
| 79 | Evelyn Turpin | 26 | Wife | Housewife | Kentucky |
| 80 | Billy Ray Turpin | 5 | Daughter | — | Kentucky |
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)