JD
James Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macon-County, Illinois
Our Model Tree links this James Davis across the 1920, 1930 and 1940 US Censuses in Macon-County, Illinois (XGBoost, ~Confirmed), with identified parents Lyman & Nora — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macon-County, Illinois |
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Decatur City |
| 1935 Residence (County) | Macon |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Ice Cream Co |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 420 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Truck Driver |
| Township / Ward | Decatur City |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Davis | Daughter | — | 10 | ~1930 |
| Lyman Davis | Head | — | 47 | ~1893 |
| Elizabeth Daley | Other | — | 58 | ~1882 |
| James Davis | Son | — | 20 | ~1920 |
| Robert Davis | Son | — | 22 | ~1918 |
| Lyman Davis | Son | — | 26 | ~1914 |
| Darren Davis | Son | — | 18 | ~1922 |
| David Davis | Son | — | 7 | ~1933 |
| Nora Davis | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Macon, Illinois
Son, age
Macon, Illinois · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macon, Illinois
Son, age 10
Macon, Illinois · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macon-County, Illinois
Son, age 20
Macon-County, Illinois · implied b. ~1920 — 9 household members
| Surname | Davis |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Decatur City |
| 1935 Residence (County) | Macon |
| Occupation | Truck Driver |
| Industry | Ice Cream Co |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 420 |
| 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 James Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lyman Davis (~0.92 confidence) and mother Nora Davis (~0.92 confidence) and mother Nora Davis (~0.92 confidence) and mother Sarah Davis (~0.82 confidence). The pedigree spans 2 generations with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Father
Lyman Davis
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Nora Davis
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Nora Davis
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Sarah Davis
b. ~1873
Source mother>mother
● Household
· direct · ~0.82
This person
Anchor record
James Davis
Son · 1940 · age 20 · b. ~1920 · Illinois
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Sibling
Robert Davis
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darren Davis
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lyman Davis
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Davis
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Davis
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Macon-County, Illinois
Open full size
1940 US Federal Census — Macon-County, Illinois
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-00843-00147)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John M. Hinkle | 60 | Head | — | Tennessee |
| 2 | Mary S. Hinkle | 54 | Wife | — | Indiana |
| 3 | Rhea Boliak | 31 | Head | Laborer | Illinois |
| 4 | Daisy Boliak | 29 | Wife | — | Indiana |
| 5 | Bill Boliak | 11 | Son | — | Illinois |
| 6 | Margery Boliak | 6 | Daughter | — | Illinois |
| 7 | Barbara Boliak | 3 | Daughter | — | Illinois |
| 8 | Fred Lee Boliak | 1 | Son | — | Illinois |
| 9 | Oscar Barnes | 33 | Head | Truck Driver | Illinois |
| 10 | Rose Barnes | 28 | Wife | — | Illinois |
| 11 | Arva J. Barnes | 11 | Daughter | — | Illinois |
| 12 | Paul Barnes | 5 | Son | — | Illinois |
| 17 | Lyman Davis | 47 | Head | Salesman | Indiana |
| 18 | Nora Davis | 47 | Wife | — | Illinois |
| 19 | Lyman Jr. Davis | 26 | Son | Office Work | Illinois |
| 20 | Robert Davis | 22 | Son | — | Illinois |
| 21 | James Davis THIS PERSON | 20 | Son | Truck Driver | Illinois |
| 22 | Darren Davis | 18 | Son | — | Illinois |
| 23 | Dorothy Davis | 10 | Daughter | — | Illinois |
| 24 | David Davis | 7 | Son | — | Illinois |
| 25 | Elizabeth Daley | 58 | Aunt | Cashier | Illinois |
| 26 | Victor O'Brien | 49 | Head | Finisher | Kentucky |
| 27 | Letta O'Brien | 48 | Wife | Seamstress | Kentucky |
| 28 | Mabel Chenoweth | 70 | Head | — | New York |
| 29 | Lora Chenoweth | 47 | Daughter | Machine Operator | Nebraska |
| 30 | John H. Randolph | 62 | Head | Carpentry | Illinois |
| 31 | Lorna Randolph | 64 | Wife | — | Illinois |
| 32 | John Eagan | 19 | Grandson | New Worker | Illinois |
| 33 | Irene Hendricks | 38 | Daughter | — | Illinois |
| 34 | Ernestine Peterson | 36 | Wife | Owner | Germany |
| 35 | Harold Peterson | 39 | Husband | Clerk | Illinois |
| 36 | Marie Lukrafka | 63 | Mother | — | Germany |
| 37 | Charles Lukrafka | 63 | Father | — | Germany |
| 38 | Evelyn Linden | 18 | Niece | Clerk | Illinois |
| 39 | Arthur Jay | 57 | Head | — | Illinois |
| 40 | Bessie Jay | 49 | Wife | — | Illinois |
Related Census Records
Pedigree Summary
James + 5 siblings
Gen 1 · 3 parents
~0.92
Gen 2 · 1 grandparents
~0.82
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)