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John Brock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this John Brock across the 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1912), then head of a 6-person household.
Age 28
b. ~1912
Male
Head
Born: Mississippi
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Brock |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Urbana City |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Car Washer |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 600 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | Car Washer |
| Township / Ward | Urbana City |
| Est. Birth Year | ~1912 |
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 |
|---|---|---|---|---|
| Vivian Brock | Daughter | — | 1 | ~1939 |
| Helene Brock | Daughter | — | ~1940 | |
| Phyllis Brock | Daughter | — | 3 | ~1937 |
| John Brock | Head | — | 28 | ~1912 |
| Ruby Brock | Spouse | — | 26 | ~1914 |
| John Brock | Son | — | 4 | ~1936 |
Census Appearances
1930
Champaign, Illinois
Other, age 19
Champaign, Illinois · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brock |
| Given Name | John |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Occupation | Common Laborer |
| Industry | Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Champaign-County, Illinois
Head, age 28
Champaign-County, Illinois · implied b. ~1912 — 6 household members
| Surname | Brock |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Urbana City |
| 1935 Residence (County) | Champaign |
| Occupation | Car Washer |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 600 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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
Head · 1940 · age 28 · b. ~1912 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00765-00957)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Maggie O'Neal | 51 | Sister | — | Illinois |
| 42 | Elberta Payne | 38 | Sister | — | Illinois |
| 43 | Ethel Payne | 16 | Niece | — | Illinois |
| 44 | Edna Payne | 1 | Niece | — | Illinois |
| 45 | Thomas Payne | 14 | Nephew | — | Illinois |
| 46 | Arthur M Lovett | 42 | Head | Porter | Illinois |
| 47 | Sybil Lovett | 48 | Wife | — | Illinois |
| 48 | Donald Lovett | 14 | Son | — | Illinois |
| 49 | John A Brock THIS PERSON | 28 | Head | Car Washer | Mississippi |
| 50 | Ruby Brock | 26 | Wife | — | Illinois |
| 51 | John R Brock | 4 | Son | — | Illinois |
| 52 | Phyllis Brock | 3 | Daughter | — | Illinois |
| 53 | Vivian Brock | 1 | Daughter | — | Illinois |
| 54 | Helene Brock | 0 | Daughter | — | Illinois |
| 55 | Scotty Adkisson | 58 | Head | — | Tennessee |
| 56 | Manda Adkisson | 50 | Wife | — | Tennessee |
| 57 | Prather Adkisson | 23 | Son | — | Alabama |
| 58 | Leonard Boykin | 44 | Bro in law | — | Texas |
| 59 | Lillie Bostic | 54 | Head | — | Alabama |
| 60 | Henrietta Bostic | 30 | Daughter | House Maid | Texas |
| 61 | Sallie Jordan | 54 | Head | — | Georgia |
| 62 | Sandy Jordan | 26 | Son | Janitor | Georgia |
| 63 | Lovie Jordan | 24 | Daughter in law | — | Georgia |
| 64 | Lula Clover | 52 | Sister | Washing | Georgia |
| 65 | George Moreland | 32 | Head | Iron Worker | Missouri |
| 66 | Dorothy Moreland | 27 | Wife | — | Illinois |
| 67 | Barbara Moreland | 9 | Daughter | — | Illinois |
| 68 | Myrtle Moreland | 7 | Daughter | — | Illinois |
| 69 | George Jr Moreland | 4 | Son | — | Illinois |
| 70 | Florence Moreland | 3 | Daughter | — | Illinois |
| 71 | Merritt Shelton | 39 | Head | Porter | Illinois |
| 72 | Aramae Shelton | 35 | Wife | — | Illinois |
| 73 | Ethel Frances Shelton | 16 | Daughter | — | Illinois |
| 74 | Shelton | 14 | Daughter | — | Illinois |
| 75 | Merritt Jr Shelton | 12 | Son | — | Illinois |
| 76 | Mary Shelton | 10 | Daughter | — | Illinois |
| 77 | Martha Shelton | 10 | Daughter | — | Illinois |
| 78 | Albert Shelton | 4 | Son | — | Illinois |
| 79 | Uriah Moreland | 70 | Head | Janitor | Illinois |
| 80 | Alice Moreland | 64 | Wife | — | Illinois |
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)