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Ada Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Ada Davis across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents Victoria & Charlie — first a spouse (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Female
Spouse
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Davis |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Birmingham |
| Est. Birth Year | ~1913 |
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 Ada | Age | Birth yr |
|---|---|---|---|---|
| Joe Davis | Head | — | 35 | ~1905 |
| Mary Davis | Daughter | — | 7 | ~1933 |
| Ada Davis | Spouse | — | 27 | ~1913 |
| Evelyn Davis | Daughter | — | 10 | ~1930 |
Census Appearances
1920
Jefferson, Alabama
Daughter, age 7
Jefferson, Alabama · implied b. ~1913 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ada |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Other, age 17
Jefferson, Alabama · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ada |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Servant |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Spouse, age 27
Jefferson-County, Alabama · implied b. ~1913 — 4 household members
| Surname | Davis |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (County) | Jefferson |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Ada Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Victoria Davis (~0.92 confidence) and father Charlie Davis (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Victoria Davis
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Charlie Davis
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
Ada Davis
Spouse · 1940 · age 27 · b. ~1913 · Alabama
★ 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 — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00091-00073)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward Johnson | 8 | Daughter | — | Alabama |
| 42 | Malula Hudson | 5 | daughter | — | Alabama |
| 43 | Quinta Hudson | 4 | daughter | — | Alabama |
| 44 | Leon Simmon | 34 | Head | Porter | Alabama |
| 45 | Lelia Simmon | 24 | Wife | — | Alabama |
| 46 | Leonard Simmon | 2 | son | — | Alabama |
| 47 | Levira Simmon | 1 | daughter | — | Alabama |
| 48 | Joe Crawford | 22 | Brother | Porter | Alabama |
| 49 | Lelia Brooks | 54 | Sister | — | Alabama |
| 50 | William Bluffock | 34 | Head | Boiler Maker | Alabama |
| 51 | Laura Bluffock | 29 | Wife | — | Alabama |
| 52 | Fonza Bluffock | 12 | Son | — | Alabama |
| 53 | Eugene Bluffock | 10 | Son | — | Alabama |
| 54 | Anne Lou Bluffock | 7 | daughter | — | Alabama |
| 55 | Camilla Reed | 32 | Head | Cook | Alabama |
| 56 | James Wells | 19 | son | — | Alabama |
| 57 | Albert Williams | 12 | nephew | — | Alabama |
| 58 | Porter Williams | 4 | Nephew | — | Alabama |
| 59 | Elizabeth Holliday | 65 | Mother | — | Alabama |
| 60 | Joe Davis | 35 | Head | Coal Miner | Alabama |
| 61 | Ada Davis THIS PERSON | 27 | Wife | — | Alabama |
| 62 | Evelyn Davis | 10 | daughter | — | Alabama |
| 63 | Mary Davis | 7 | daughter | — | Alabama |
| 64 | Elizabeth Clayton | 34 | Head | — | Alabama |
| 65 | Coleman Clayton | 20 | son | — | Alabama |
| 66 | Elizabeth Clayton | 17 | daughter | — | Alabama |
| 67 | George Clayton | 15 | son | — | Alabama |
| 68 | Aline Clayton | 13 | daughter | — | Alabama |
| 69 | Frank Clayton | 10 | Son | — | Alabama |
| 70 | Geraldine Clayton | 8 | daughter | — | Alabama |
| 71 | Lora Kennedy | 19 | daughter | — | Alabama |
| 72 | Caldonia King | 44 | Head | — | Alabama |
| 73 | Earnest King | 32 | Son | — | Alabama |
| 74 | Samuel King | 19 | son | — | Alabama |
| 75 | Jessie Mason | 19 | Roomer | — | Alabama |
| 76 | Louise Jackson | 32 | Head | Maid | Alabama |
| 77 | Christin Jackson | 12 | daughter | — | Alabama |
| 78 | Roland Jackson | 9 | son | — | Alabama |
| 79 | Rosie Whittaker | 39 | Head | Maid | Alabama |
| 80 | Lee Hardy | 32 | Head | — | Alabama |
Pedigree Summary
Ada
Gen 1 · 2 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)