CD
Clarence Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macoupin-County, Illinois
Our Model Tree links this Clarence Davis across the 1920, 1930 and 1940 US Censuses in Macoupin-County, Illinois (XGBoost, ~Confirmed), with identified parents Jefferson & James — first a head (b.~1897), then head of a 6-person household.
Age 43
b. ~1897
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Macoupin-County, Illinois |
| Surname | Davis |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Brighton Township |
| 1935 Residence (County) | Macoupin |
| Additional Details | |
| Occupation | Farming |
| Class of Worker | OA |
| Hours Worked | 96 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farming |
| Township / Ward | Brighton Township |
| Est. Birth Year | ~1897 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Clarence Davis | Head | — | 43 | ~1897 |
| Morris Davis | Son | — | 1 | ~1939 |
| Paul Davis | Son | — | 2 | ~1938 |
| Raymond Davis | Son | — | 6 | ~1934 |
| Donald Davis | Son | — | 4 | ~1936 |
| Etta Davis | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Macoupin, Illinois
Son, age 23
Macoupin, Illinois · implied b. ~1897 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Clarence B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macoupin, Illinois
Son, age 33
Macoupin, Illinois · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macoupin-County, Illinois
Head, age 43
Macoupin-County, Illinois · implied b. ~1897 — 6 household members
| Surname | Davis |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Brighton Township |
| 1935 Residence (County) | Macoupin |
| Occupation | Farming |
| Class of Worker | OA |
| Hours Worked | 96 |
| Income (1939) | 0 |
| Highest Grade | Hs 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 Jefferson Davis (~0.92 confidence) and father James Davis (~0.92 confidence) and mother Sarah Davis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jefferson Davis
b. ~1867
Source father
● Household
· direct · ~0.92
Father
James Davis
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Sarah Davis
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Davis
Head · 1940 · age 43 · b. ~1897 · 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 — Macoupin-County, Illinois
Open full size
1940 US Federal Census — Macoupin-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00846-00087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Krummelbein | 36 | Head | Farming | Germany |
| 2 | Elsie Krummelbein | 33 | Wife | — | Illinois |
| 3 | Ernest C. Spickerman | 70 | Head | Farming | Illinois |
| 4 | Nellie Spickerman | 60 | Wife | — | Illinois |
| 5 | Ernest Jr. Spickerman | 31 | Son | Farming | Illinois |
| 6 | Hazel Spickerman | 38 | Daughter | — | Illinois |
| 7 | Frank S. Spickerman | 30 | Head | Laborer | Illinois |
| 8 | Florence Spickerman | 30 | Wife | — | Illinois |
| 9 | Melvin Spickerman | 8 | Son | — | Illinois |
| 10 | Marvin Spickerman | 6 | Son | — | Illinois |
| 11 | Betty Spickerman | 2 | Daughter | — | Illinois |
| 12 | Ola Dunham | 55 | Head | Farming | Missouri |
| 13 | Ralph Dunham | 22 | Son | Farming | Illinois |
| 14 | Josephine Dunham | 15 | Daughter | — | Illinois |
| 15 | James Dunham | 8 | Son | — | Illinois |
| 16 | Floyd Dunham | 6 | Son | — | Illinois |
| 17 | Doris Dunham | 3 | Daughter | — | Illinois |
| 18 | Arthur H. Schmidt | 49 | Head | Farming | Illinois |
| 19 | Matilda Schmidt | 45 | Wife | — | Illinois |
| 20 | Verna Plegge | 22 | Daughter | — | Illinois |
| 21 | Harvey Plegge | 25 | Son-in-law | — | Illinois |
| 22 | Dorothy Plegge | 0 | Granddaughter | — | Illinois |
| 23 | Kenneth Etheredge | 34 | Head | Farming | Illinois |
| 24 | Muriel Fay Etheredge | 20 | Wife | — | Illinois |
| 25 | Evelyn Etheredge | 9 | Daughter | — | Illinois |
| 26 | Annilee Etheredge | 5 | Daughter | — | Illinois |
| 27 | Fayrent Miller | 26 | Mason | Laborer | Illinois |
| 28 | Ruby Miller | 18 | Maid-serv. | — | Illinois |
| 29 | Ronald Miller | 1 | Son | — | Illinois |
| 30 | Harvey Easington | 55 | Head | Farming | Illinois |
| 31 | Emily Easington | 52 | Wife | — | Indiana |
| 32 | Clarence Davis THIS PERSON | 43 | Head | Farming | Illinois |
| 33 | Etta Davis | 39 | Wife | — | Illinois |
| 34 | Raymond Davis | 6 | Son | — | Illinois |
| 35 | Donald Davis | 4 | Son | — | Illinois |
| 36 | Paul Davis | 2 | Son | — | Illinois |
| 37 | Morris Davis | 1 | Son | — | Illinois |
| 38 | Archie Neunard | 50 | Head | Machinist | Illinois |
| 39 | Fern Neunard | 35 | Wife | Housewife | Illinois |
| 40 | Virgil Neunard | 14 | Son | — | Illinois |
Pedigree Summary
Clarence
Gen 1 · 3 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)