BC
Bertha Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Christian-County, Illinois
Our Model Tree links this Bertha Clark across the 1930 and 1940 US Censuses in Christian-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1904), then head of a 12-person household.
Age 36
b. ~1904
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Christian-County, Illinois |
| Surname | Clark |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Christian |
| Additional Details | |
| Occupation | Housewife |
| Industry | Home |
| Highest Grade | 5 |
| 1935 Residence | Illinois |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Housewife |
| Township / Ward | Buckhart Township |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Geneva Clark | Daughter | — | 13 | ~1927 |
| William Clark | Son | — | 3 | ~1937 |
| Monica Clark | Daughter | — | 11 | ~1929 |
| Hilman Clark | Son | — | 17 | ~1923 |
| Charlie Clark | Head | — | 39 | ~1901 |
| Raymond Clark | Son | — | 18 | ~1922 |
| Alvena Clark | Daughter | — | 10 | ~1930 |
| Virginia Clark | Daughter | — | 6 | ~1934 |
| Bertha Clark | Spouse | — | 36 | ~1904 |
| Waneta Clark | Daughter | — | 15 | ~1925 |
| Cecil Clark | Son | — | 4 | ~1936 |
| Charles Clark | Son | — | 8 | ~1932 |
Census Appearances
1930
Christian, Illinois
Other, age 24
Christian, Illinois · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Bertha |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 19 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Christian-County, Illinois
Spouse, age 36
Christian-County, Illinois · implied b. ~1904 — 12 household members
| Surname | Clark |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Christian |
| Occupation | Housewife |
| Industry | Home |
| Highest Grade | 5 |
| 1935 Residence | Illinois |
| 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 Bertha Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha 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 — Christian-County, Illinois
Open full size
1940 US Federal Census — Christian-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00767-00135)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Blanche Baughman | 47 | Wife | Housewife | Illinois |
| 2 | Eugene Baughman | 21 | Son | Housework | Illinois |
| 3 | Nelsa Baughman | 13 | Daughter | — | Illinois |
| 4 | John Williams | 60 | Head | Farmer | Kentucky |
| 5 | Mandy Williams | 58 | Wife | Housewife | Tennessee |
| 6 | Thomas Hout | 40 | Hired hand | Hired Hand | Denmark |
| 7 | Milton Sinnard | 21 | Head | Farmer | Illinois |
| 8 | Marjorie Sinnard | 20 | Wife | — | Missouri |
| 9 | Samuel Lee Sinnard | 1 | Son | — | Missouri |
| 10 | Harry Hurlbutt | 51 | Head | Farmer | Illinois |
| 11 | Lyla Hurlbutt | 49 | Wife | Housewife | Illinois |
| 12 | Eugene Stuzer | 34 | Hired hand | Farmer | Pennsylvania |
| 13 | John Dehart | 33 | Head | Farmer | Illinois |
| 14 | Mary Dehart | 30 | Wife | Housewife | Illinois |
| 15 | Charles Dehart | 11 | Son | — | Illinois |
| 16 | Bernard Dehart | 10 | Son | — | Illinois |
| 17 | Celia Dehart | 9 | Daughter | — | Illinois |
| 18 | Agnes Dehart | 9 | Daughter | — | Illinois |
| 19 | John Jr. Dehart | 8 | Son | — | Illinois |
| 20 | Mary M. Dehart | 6 | Daughter | — | Illinois |
| 21 | Bonnie Dehart | 5 | Son | — | Illinois |
| 22 | Nora Dehart | 3 | Daughter | — | Illinois |
| 23 | Charlie T. Clark | 39 | Head | Farm Hand | Kentucky |
| 24 | Bertha Clark THIS PERSON | 36 | Wife | Housewife | Kentucky |
| 25 | Raymond Clark | 18 | Son | — | Kentucky |
| 26 | Hilman Clark | 17 | Son | — | Kentucky |
| 27 | Waneta Clark | 15 | Daughter | — | Kentucky |
| 28 | Geneva Clark | 13 | Daughter | — | Kentucky |
| 29 | Monica Clark | 11 | Daughter | — | Illinois |
| 30 | Alvena Clark | 10 | Daughter | — | Illinois |
| 31 | Charles Clark | 8 | Son | — | Illinois |
| 32 | Virginia Clark | 6 | Daughter | — | Illinois |
| 33 | Cecil Clark | 4 | Son | — | Illinois |
| 34 | William Ed Clark | 3 | Son | — | Illinois |
| 35 | Sydney Kelben | 62 | Head | — | Illinois |
| 36 | Nina Kelben | 59 | Wife | Housewife | Illinois |
| 37 | Frances Kelben | 36 | Daughter | School Teacher | Illinois |
| 38 | Forest Williams | 32 | Head | Farmer | Illinois |
| 39 | Marjorie Williams | 27 | Wife | Housewife | Illinois |
| 40 | Carol Sue Williams | 5 | Daughter | — | 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)