CD
Clarence Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Effingham-County, Illinois
Our Model Tree links this Clarence Davis across the 1920, 1930 and 1940 US Censuses in Effingham-County, Illinois (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Effingham-County, Illinois |
| Surname | Davis |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Effingham City |
| 1935 Residence (County) | Effingham |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Effingham City |
| Est. Birth Year | ~1914 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Edward Davis | Head | — | 56 | ~1884 |
| Beulah Riddle | Other | — | 23 | ~1917 |
| Clarence Davis | Son | — | 26 | ~1914 |
| Bertha Davis | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Effingham, Illinois
Son, age 5
Effingham, Illinois · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Clarence Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Kentucky |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Effingham, Illinois
Son, age 16
Effingham, Illinois · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Clarence S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Effingham-County, Illinois
Son, age 26
Effingham-County, Illinois · implied b. ~1914 — 4 household members
| Surname | Davis |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Effingham City |
| 1935 Residence (County) | Effingham |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Clarence Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Davis (~0.92 confidence) and father Edward Davis (~0.92 confidence) and mother Bertha Davis (~0.92 confidence) and father Clarence Davis (~0.92 confidence) and mother Gertie Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Davis
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Edward Davis
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Bertha Davis
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
Clarence Davis
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Gertie Davis
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Davis
Son · 1940 · age 26 · b. ~1914 · 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 — Effingham-County, Illinois
Open full size
1940 US Federal Census — Effingham-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00800-00143)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Glenn Ashbaugh | 37 | Head | Truck Driver | Illinois |
| 2 | Marie Ashbaugh | 22 | Wife | — | Missouri |
| 3 | Ray Morse | 36 | Head | Laborer | Illinois |
| 4 | Ruth Morse | 33 | Wife | — | Illinois |
| 5 | Harry Brown | 28 | Head | Machine Operator | Illinois |
| 6 | Madeline Brown | 24 | Wife | — | Illinois |
| 7 | Paul Brown | 4 | Son | — | Illinois |
| 8 | Harry Jr Brown | 2 | Son | — | Illinois |
| 9 | J. W. Broom | 74 | Head | — | Illinois |
| 10 | Albert E Broom | 38 | Son | Agent | Illinois |
| 11 | Minnie Broom | 37 | Daughter-in-law | — | Illinois |
| 12 | Bill Broom | 15 | Grandson | — | Illinois |
| 13 | Richard Broom | 8 | Grandson | — | Illinois |
| 14 | Glenn Marshall | 34 | Head | Physician | Illinois |
| 15 | Genevieve Marshall | 30 | Wife | — | Illinois |
| 16 | Eva Porter | 25 | Maid | Housekeeper | Illinois |
| 17 | Charles E Miller | 58 | Head | Retired | Indiana |
| 18 | Cora Miller | 51 | Wife | — | Illinois |
| 19 | Maxine Miller | 17 | Daughter | — | Illinois |
| 20 | Mary Miller | 11 | Daughter | — | Illinois |
| 21 | Henry Marshall | 34 | Head | Salesman | Illinois |
| 22 | Ruth Marshall | 30 | Wife | — | Illinois |
| 23 | Stephen John | 31 | Head | Physician | Illinois |
| 24 | Dorothy John | 31 | Wife | — | Illinois |
| 25 | Robert Post | 30 | Head | Owner | Illinois |
| 26 | Pauline Post | 28 | Wife | Clerk | Illinois |
| 27 | Catherine Clow | 55 | Mother-in-law | Housework | Illinois |
| 28 | Edward Davis | 56 | Head | Salesman | Illinois |
| 29 | Bertha Davis | 53 | Wife | — | Illinois |
| 30 | Clarence Davis THIS PERSON | 26 | Son | — | Illinois |
| 31 | Beulah Riddle | 23 | Niece | Salesman | Illinois |
| 32 | There Ends Block 30 | None | — | — | — |
| 33 | Ernest Britton | 37 | Head | Superintendent | Illinois |
| 34 | Martha Britton | 37 | Wife | — | Illinois |
| 35 | Deane Britton | 5 | Son | — | Illinois |
| 36 | Paul Smith | 30 | Lodger | Laborer | Illinois |
| 37 | Paul Kabbes | 35 | Head | Asst Cashier | Illinois |
| 38 | Virginia Kabbes | 28 | Wife | — | Indiana |
| 39 | Fred Miller | 75 | Head | — | Illinois |
| 40 | Eva Miller | 76 | Wife | — | Illinois |
Pedigree Summary
Clarence
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)