CC
Clara Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Madison-County, Illinois
Our Model Tree links this Clara Clark across the 1930 and 1940 US Censuses in Madison-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1915), then head of a 8-person household.
Age 25
b. ~1915
Female
Spouse
Born: Arkansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Illinois |
| Surname | Clark |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Alton city |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Township / Ward | Alton City |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Dora Clark | Daughter | — | 5 | ~1935 |
| Harry Clark | Son | — | 3 | ~1937 |
| Clara Clark | Daughter | — | 1 | ~1939 |
| Mary Clark | Daughter | — | 9 | ~1931 |
| Samuel Clark | Head | — | 33 | ~1907 |
| Clara Clark | Spouse | — | 25 | ~1915 |
| Samuel Clark | Son | — | 3 | ~1937 |
| William Clark | Son | — | 7 | ~1933 |
Census Appearances
1930
Madison, Illinois
Spouse, age 15
Madison, Illinois · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Married |
| Birthplace | Arkansas |
| Age at First Marriage | 14 |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Can Read/Write | Yes |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Madison-County, Illinois
Spouse, age 25
Madison-County, Illinois · implied b. ~1915 — 8 household members
| Surname | Clark |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Alton city |
| 1935 Residence (County) | Madison |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 25 · b. ~1915 · 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 — Madison-County, Illinois
Open full size
1940 US Federal Census — Madison-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00848-00395)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lucy Mcpike | 72 | Head | Pension | Illinois |
| 2 | William Fisher | 64 | Boarder | — | Missouri |
| 3 | (Unreadable) | None | Boarder | — | — |
| 4 | (Blank) (Blank) | None | (blank) | (Blank) | (blank) |
| 5 | Ella Sherman | 60 | Head | — | Illinois |
| 6 | James Woods | 30 | Head | Labor | Mississippi |
| 7 | Etha Woods | 30 | Wife | Labor | Mississippi |
| 8 | James Jr Woods | 10 | Son | — | Mississippi |
| 9 | Lois Woods | 7 | Daughter | — | Mississippi |
| 10 | Lawrence Woods | 5 | Son | — | Mississippi |
| 11 | Glendora Woods | 3 | Daughter | — | Mississippi |
| 12 | Samuel Clark | 33 | Head | Labor | Mississippi |
| 13 | Clara Clark THIS PERSON | 25 | Wife | — | Arkansas |
| 14 | Mary Clark | 9 | Daughter | — | Missouri |
| 15 | William Clark | 7 | Son | — | Illinois |
| 16 | Dora L Clark | 5 | Daughter | — | Illinois |
| 17 | Samuel E Clark | 3 | Son | — | Illinois |
| 18 | Harry Clark | 3 | Son | — | Illinois |
| 19 | Clara Clark | 1 | Daughter | — | Illinois |
| 20 | Fred Smith | 26 | Head | — | Mississippi |
| 21 | Alice Smith | 26 | Wife | — | Mississippi |
| 22 | Earl Smith | 5 | Son | — | Arkansas |
| 23 | W Elmer Rogers | 58 | Head | House Painter | Ohio |
| 24 | Ella Rogers | 57 | Wife | — | Illinois |
| 25 | William Jr Rogers | 23 | Son | House Painter | Illinois |
| 26 | Mary E Rogers | 27 | Daughter | — | Illinois |
| 27 | Janet R Rogers | 15 | Daughter | — | Illinois |
| 28 | James Gilmartin | 54 | Head | Dry Goods | Illinois |
| 29 | Elizabeth Gilmartin | 67 | Mother | — | Illinois |
| 30 | Anna Gilmartin | 65 | Sister | Clerk | Illinois |
| 31 | Peter T Gilmartin | 60 | Brother | Clerk | Illinois |
| 32 | Catherine Gilmartin | 52 | Sister | Clerk | Illinois |
| 33 | Charles Rowan | 69 | Head | Custom | Illinois |
| 34 | Alice E Rowan | 59 | Wife | — | Illinois |
| 35 | Albert Rowan | 45 | Son | Clerk | Illinois |
| 36 | Thomas Rowan | 67 | Brother-in-law | Pension | Illinois |
| 37 | Mary R Van Meter | 54 | Head | Operator | Iowa |
| 38 | Ralph Van Meter | 33 | Son | Clerk | Illinois |
| 39 | Raymond Van Meter | 24 | Son | Truck Driver | Illinois |
| 40 | (Blank) (Blank) | None | (blank) | (Blank) | (blank) |
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)