CC
Clara Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Clara Clark across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1904), then head of a 8-person household.
Age 36
b. ~1904
Female
Spouse
Born: Arkansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Clark |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Township / Ward | Chicago |
| Est. Birth Year | ~1904 |
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 Clara | Age | Birth yr |
|---|---|---|---|---|
| Henry Clark | Head | — | 38 | ~1902 |
| Lucille Clark | Daughter | — | 16 | ~1924 |
| Curtis Clark | Son | — | 2 | ~1938 |
| Latrell Clark | Daughter | — | 14 | ~1926 |
| Harry Clark | Son | — | 4 | ~1936 |
| Barbara Clark | Daughter | — | 9 | ~1931 |
| Clara Clark | Spouse | — | 36 | ~1904 |
| Alfreda Clark | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Cook, Illinois
Spouse, age 26
Cook, Illinois · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Arkansas |
| Age at First Marriage | 19 |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Can Read/Write | Yes |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Cook-County, Illinois
Spouse, age 36
Cook-County, Illinois · implied b. ~1904 — 8 household members
| Surname | Clark |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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 Clara Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clara Clark
Spouse · 1940 · age 36 · b. ~1904 · 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00962-00074)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mandy Abram | 30 | Head | Presser | Mississippi |
| 2 | Rebecca Sewell | 50 | Lodger | — | Mississippi |
| 3 | Edith Waites | 40 | Lodger | Laborer | Alabama |
| 4 | Everett Marshall | 36 | Head | Laborer | Mississippi |
| 5 | Millie Hayes | 20 | Lodger | — | Mississippi |
| 6 | Mildred Loster | 12 | Cousin | — | Illinois |
| 7 | Johnny Loster | 11 | Cousin | — | Illinois |
| 8 | Jack James | 55 | Head | Laborer | Mississippi |
| 9 | Emma James | 36 | Wife | — | Mississippi |
| 10 | Elmer Scale | 38 | Lodger | Laborer | Mississippi |
| 11 | Henry Clark | 38 | Head | — | Georgia |
| 12 | Clara Clark THIS PERSON | 36 | Wife | — | Arkansas |
| 13 | Lucille Clark | 16 | Daughter | — | Illinois |
| 14 | Latrell Clark | 14 | Daughter | — | Illinois |
| 15 | Alfreda Clark | 11 | Daughter | — | Illinois |
| 16 | Barbara Clark | 9 | Daughter | — | Illinois |
| 17 | Harry Clark | 4 | Son | — | Illinois |
| 18 | Curtis Clark | 2 | Son | — | Illinois |
| 19 | Luther Burton | 48 | Head | Laborer | Oklahoma |
| 20 | Essie Burton | 41 | Wife | — | Alabama |
| 21 | Wallace Burton | 8 | Son | — | Illinois |
| 22 | Alvia Burton | 7 | Son | — | Illinois |
| 23 | Thomas Burton | 6 | Son | — | Illinois |
| 24 | Harold Burton | 3 | Son | — | Illinois |
| 25 | Loretta Burton | 0 | Daughter | — | Illinois |
| 26 | Walter Hood | 30 | Nephew | Laborer | Alabama |
| 27 | Lucille Ward | 34 | Head | — | Tennessee |
| 28 | Arlene Hunter | 54 | Mother | — | Tennessee |
| 29 | Augustus Wallace | 40 | Lodger | Laborer | Alabama |
| 30 | Lucille Hardy | 28 | Head | — | Mississippi |
| 31 | Rice Hardy | 3 | Son | — | Mississippi |
| 32 | Roberta Hardy | 1 | Daughter | — | Illinois |
| 33 | Mary Hardy | 20 | Sister | Knitter | Mississippi |
| 34 | Effery Johnson | 37 | Head | Junkman | Virginia |
| 35 | Carrie Johnson | 22 | Wife | — | Alabama |
| 36 | Margaret Johnson | 16 | Daughter | — | Florida |
| 37 | Clara Johnson | 6 | Daughter | — | Ohio |
| 38 | Howard Harris | 23 | Head | Laborer | Mississippi |
| 39 | Margaret Harris | 20 | Wife | — | Illinois |
| 40 | Myer Lappe | 72 | Head | — | Russia |
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)