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James Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Union-County, Illinois
Our Model Tree links this James Davis across the 1920, 1930 and 1940 US Censuses in Union-County, Illinois (XGBoost, ~Confirmed), with identified parents James & Amy — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, Illinois |
| Surname | Davis |
| Given Name | James O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Anna |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Anna |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Davis | Head | — | 71 | ~1869 |
| James Davis | Son | — | 23 | ~1917 |
| Amy Davis | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Union, Illinois
Son, age 3
Union, Illinois · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | James O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Union, Illinois
Son, age 13
Union, Illinois · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | James O |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Union-County, Illinois
Son, age 23
Union-County, Illinois · implied b. ~1917 — 3 household members
| Surname | Davis |
| Given Name | James O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Anna |
| 1935 Residence (County) | Union |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Highest Grade | H-2 |
| 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 James Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Davis (~0.92 confidence) and mother Amy Davis (~0.92 confidence) and mother Annie Davis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Davis
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Amy Davis
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Annie Davis
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Davis
Son · 1940 · age 23 · b. ~1917 · 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 — Union-County, Illinois
Open full size
1940 US Federal Census — Union-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00896-00167)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jesse Christman | 66 | Head | — | Illinois |
| 2 | Ellen Christman | 65 | Wife | — | Illinois |
| 3 | James R. Davis | 71 | Head | Farmer | Illinois |
| 4 | Amy O. Davis | 61 | Wife | — | Illinois |
| 5 | James O. Davis THIS PERSON | 23 | Son | Laborer | Illinois |
| 6 | Alex C. Johnson | 43 | Head | Farmer | Michigan |
| 7 | Reba Johnson | 35 | Wife | — | Illinois |
| 8 | Clarence Rader | 37 | Head | Farmer | Illinois |
| 9 | Marie Rader | 37 | Wife | Piece Work | Illinois |
| 10 | Bobbie Rader | 11 | Son | — | Illinois |
| 11 | Ford Fuller | 30 | Head | Laborer | Illinois |
| 12 | Alma Fuller | 30 | Wife | — | Illinois |
| 13 | Alma Jean Fuller | 8 | Daughter | — | Illinois |
| 14 | Mae Hinkle | 63 | Wife | — | Illinois |
| 15 | Jake Hinkle | 33 | Son | W.P.A. | Illinois |
| 16 | Otis E. Brown | 34 | Head | Farmer | Illinois |
| 17 | Pearl J. Brown | 29 | Wife | — | Illinois |
| 18 | William Pool|Provitt | 62 | Head | Farmer | Illinois |
| 19 | Charley Williams | 62 | Head | Laborer | Illinois |
| 20 | Grace Williams | 55 | Wife | — | Illinois |
| 21 | Clarence Williams | 24 | Daughter | Timekeeper | Illinois |
| 22 | Rolla Hartline | 69 | Head | Laborer | Illinois |
| 23 | Ida Hartline | 65 | Wife | — | Kentucky |
| 24 | Albert Hartline | 33 | Son | Laborer | Illinois |
| 25 | Floyd Hartline | 26 | Son | Laborer | Illinois |
| 26 | Juanita Hartline | 22 | Daughter | — | Illinois |
| 27 | Jack Dean Hartline | 4 | Grandson | — | Illinois |
| 28 | George Peeler | 24 | Head | Laborer | Illinois |
| 29 | Helen Peeler | 25 | Wife | — | Illinois |
| 30 | Dixie Lee Peeler | 4 | Daughter | — | Illinois |
| 31 | Cason M. Treece | 39 | Head | Farmer | Illinois |
| 32 | Eva Treece | 34 | Wife | Piece Worker | Illinois |
| 33 | Ray Bloodworth | 26 | Boarder | Carpenter | Illinois |
| 34 | Isaac Baumheuter | 38 | Head | Printer | Illinois |
| 35 | Bessie Baumheuter | 35 | Wife | — | Tenn |
| 36 | William R. Baumheuter | 16 | Son | — | Illinois |
| 37 | Mary A. Baumheuter | 12 | Daughter | — | Illinois |
| 38 | Charles Ness | 49 | Head | Farmer | Illinois |
| 39 | Beulah Ness | 43 | Wife | — | Illinois |
| 40 | Harry Fuller | 60 | Head | Laborer | Illinois |
Pedigree Summary
James
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)