RC
Ralph Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Christian-County, Illinois
Our Model Tree links this Ralph Clark across the 1920, 1930 and 1940 US Censuses in Christian-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 4-person household.
Age 45
b. ~1895
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Christian-County, Illinois |
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Wheeler |
| 1935 Residence (County) | Jasper |
| Additional Details | |
| Occupation | Gas. Sta. operator |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 156 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Gas. Sta. Operator |
| Township / Ward | Edinburg Village |
| Est. Birth Year | ~1895 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Joan Clark | Daughter | — | 12 | ~1928 |
| Ralph Clark | Head | — | 45 | ~1895 |
| Ada Clark | Spouse | — | 39 | ~1901 |
| Charles Clark | Son | — | 10 | ~1930 |
Census Appearances
1920
Christian, Illinois
Head, age 25
Christian, Illinois · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Engineer |
| Industry | Power plant |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Christian, Illinois
Head, age 35
Christian, Illinois · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ralph E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Mechanic |
| Industry | Utility Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 16 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Christian-County, Illinois
Head, age 45
Christian-County, Illinois · implied b. ~1895 — 4 household members
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Wheeler |
| 1935 Residence (County) | Jasper |
| Occupation | Gas. Sta. operator |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 156 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Ralph Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ralph Clark
Head · 1940 · age 45 · b. ~1895 · Illinois
★ You are viewing this record
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
39 people indexed on this census page (nara:1940:m-t0627-00767-00103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norval Mason | 34 | Head | Book Custodian | Illinois |
| 2 | Vivian O Mason | 34 | Wife | Worker | Illinois |
| 3 | Robert L Mason | 16 | Son | — | Illinois |
| 4 | Samuel L Shailes | 43 | Head | Minister Of The Gospel | Illinois |
| 5 | Nora Shailes | 42 | Wife | House Wife | Illinois |
| 6 | J Owen Brown | 54 | Head | Worker On W.P.A. Project | Illinois |
| 7 | Sadie O Brown | 48 | Wife | House Wife | Kentucky |
| 8 | Russel E Brown | 26 | Son | On A Farm | Illinois |
| 9 | Josephine Brown | 25 | Daughter | House Maid | Illinois |
| 10 | Loyal Brown | 22 | Son | On A Farm | Illinois |
| 11 | Kenneth Brown | 17 | Son | Poultry House | Illinois |
| 12 | Spencer Brown | 12 | Son | — | Illinois |
| 13 | Ralph Clark THIS PERSON | 45 | Head | Gas. Sta. Operator | Illinois |
| 14 | Ada Clark | 39 | Wife | House Wife But Helps In Station | Illinois |
| 15 | Joan Clark | 12 | Daughter | — | Illinois |
| 16 | Charles Clark | 10 | Son | — | Illinois |
| 17 | Albert Thompson | 60 | Head | Miner (Door Man) | Illinois |
| 18 | Almina Thompson | 48 | Wife | House Wife | Illinois |
| 19 | Albert Jr. Thompson | 17 | Son | — | Illinois |
| 20 | John Morris | 69 | Head | Office Man At Power Plant | Ohio |
| 21 | Ella Morris | 67 | Wife | House Wife | Illinois |
| 22 | Helen Morris | 41 | Daughter | Teacher Public School | Illinois |
| 23 | C. W. Hunter | 67 | Head | Retired Farmer | Illinois |
| 24 | Carrie Hunter | 68 | Wife | House Wife | Illinois |
| 25 | Earnie Taylor | 50 | Lodger | — | Illinois |
| 26 | Asa Lillie | 53 | Head | Minister Of Gospel | Kansas |
| 27 | Alta Lillie | 50 | Wife | House Wife | Illinois |
| 28 | Jerry Wesley Lillie | 16 | Son | — | Michigan |
| 29 | Nannie Echols | 79 | Mother in law | — | Illinois |
| 30 | Frank Kamerer | 44 | Head | Linotyper Breeze | Illinois |
| 31 | Clella Kamerer | 42 | Wife | House Wife | Illinois |
| 32 | Betty Kamerer | 15 | Daughter | — | Illinois |
| 33 | Helen Kamerer | 12 | Daughter | — | Illinois |
| 34 | Donald Kamerer | 10 | Son | — | Illinois |
| 35 | Marion Kamerer | 5 | Daughter | — | Illinois |
| 36 | J. T. Cooper | 74 | Head | Retired M. E. Word New Preacher | Illinois |
| 37 | Bertha Cooper | 40 | Wife | House Wife | Missouri |
| 38 | James Cooper | 18 | Son | At Millikin University | Missouri |
| 39 | Marjorie Cooper | 17 | Daughter | — | Missouri |
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)