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Thomas Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Thomas Davis across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Thomas & Mary — first a son (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Davis |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Laborer |
| Industry | NYA Park Proj |
| Class of Worker | GW |
| Hours Worked | 52 |
| Income (1939) | 188 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Indianapolis |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mildred Davis | Daughter | — | 18 | ~1922 |
| Gladys Davis | Daughter | — | 31 | ~1909 |
| Thomas Davis | Head | — | 64 | ~1876 |
| James Davis | Son | — | 19 | ~1921 |
| John Davis | Son | — | 44 | ~1896 |
| Thomas Davis | Son | — | 23 | ~1917 |
| Mary Davis | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Marion, Indiana
Son, age 2
Marion, Indiana · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 13
Marion, Indiana · implied b. ~1917 — 41 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Thomas jr |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 23
Marion-County, Indiana · implied b. ~1917 — 7 household members
| Surname | Davis |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Laborer |
| Industry | NYA Park Proj |
| Class of Worker | GW |
| Hours Worked | 52 |
| Income (1939) | 188 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Thomas Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Davis (~0.92 confidence) and mother Mary Davis (~0.92 confidence) and mother Mary Davis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Davis
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Mary Davis
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Mary Davis
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Davis
Son · 1940 · age 23 · b. ~1917 · Indiana
★ You are viewing this record
Sibling
Mildred Davis
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Davis
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Davis
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Davis
Sibling · 1940 · age 44
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01128-00610)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Starling | 21 | Son | — | Indiana |
| 42 | George Poland | 21 | Brother | Dockman | Indiana |
| 43 | Peter Harris | 30 | Head | Truck Driver | Indiana |
| 44 | Kathryn Harris | 27 | Wife | — | Indiana |
| 45 | Donald Harris | 7 | Son | — | Indiana |
| 46 | Joan Harris | 6 | Daughter | — | Indiana |
| 47 | Harold Harris | 4 | Son | — | Indiana |
| 48 | William Harris | 1 | Son | — | Indiana |
| 49 | Grace Pittman | 45 | Head | — | Kentucky |
| 50 | Mary Pittman | 20 | Daughter | Clerk | Indiana |
| 51 | Dorothy Pittman | 17 | Daughter | — | Indiana |
| 52 | John Pittman | 11 | Son | — | Indiana |
| 53 | William Pittman | 9 | Son | — | Indiana |
| 54 | Harry Ettinger | 58 | Head | — | Indiana |
| 55 | Josephine Ettinger | 57 | Wife | — | Indiana |
| 56 | Gustave Ettinger | 37 | Head | Laborer | Indiana |
| 57 | Nancy Ettinger | 35 | Wife | — | Kentucky |
| 58 | Harry N. Ettinger | 12 | Son | — | Indiana |
| 59 | Charles Ettinger | 9 | Son | — | Indiana |
| 60 | Mary Ettinger | 7 | Daughter | — | Indiana |
| 61 | Florilla Ettinger | 6 | Daughter | — | Indiana |
| 62 | Joseph Ettinger | 3 | Son | — | Indiana |
| 63 | Thomas Davis | 64 | Head | — | Indiana |
| 64 | Mary Davis | 60 | Wife | — | Indiana |
| 65 | John Davis | 44 | Son | Laborer | Indiana |
| 66 | Gladys Davis | 31 | Daughter | Laborer | Indiana |
| 67 | Thomas Davis THIS PERSON | 23 | Son | Laborer | Indiana |
| 68 | James Davis | 19 | Son | Laborer | Indiana |
| 69 | Mildred Davis | 18 | Daughter | Mess Waiter | Indiana |
| 70 | William Cook | 44 | Head | Foreman | Kentucky |
| 71 | Stella Cook | 41 | Wife | — | Kentucky |
| 72 | William Cook | 11 | Son | — | Indiana |
| 73 | Martha Cook | 7 | Daughter | — | Indiana |
| 74 | Chadwick Alice Cook | 66 | Mother-in-law | — | Indiana |
| 75 | Grace Ammerman | 25 | Step-Daughter | Laborer | Indiana |
| 76 | Wilburn Coffey | 41 | Head | Laborer | Kentucky |
| 77 | Lella Coffey | 31 | Wife | — | Kentucky |
| 78 | Charles Coffey | 10 | Son | — | Indiana |
| 79 | Jack Coffey | 8 | Son | — | Indiana |
| 80 | Ruth Coffey | 6 | Daughter | — | Indiana |
Related Census Records
Pedigree Summary
Thomas + 4 siblings
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)