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Mary Abbott — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Mary Abbott across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents David & Dave — first a daughter (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Abbott |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Part of Precinct 55 |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Part Of Precinct 55 |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Abbott | Daughter | — | 20 | ~1920 |
| Pearl Abbott | Spouse | — | 41 | ~1899 |
| Jefferson Abbott | Head | — | 43 | ~1897 |
| June Abbott | Daughter | — | 17 | ~1923 |
| Rebecca Abbott | Daughter | — | 18 | ~1922 |
Census Appearances
1920
Jefferson, Alabama
Daughter, age 1
Jefferson, Alabama · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Abbott |
| Given Name | Mable |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Daughter, age 12
Jefferson, Alabama · implied b. ~1918 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Abbott |
| Given Name | Mamie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Daughter, age 20
Jefferson-County, Alabama · implied b. ~1920 — 5 household members
| Surname | Abbott |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Part of Precinct 55 |
| 1935 Residence (County) | Jefferson |
| Industry | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| 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 Mary Abbott across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Abbott (~0.92 confidence) and father Dave Abbott (~0.92 confidence) and mother Amanda Abbott (~0.92 confidence) and father Jefferson Abbott (~0.92 confidence) and mother Pearl Abbott (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Abbott
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Dave Abbott
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Amanda Abbott
b. ~1895
Source mother
● Household
· direct · ~0.92
Father
Jefferson Abbott
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Pearl Abbott
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Abbott
Daughter · 1940 · age 20 · b. ~1920 · Alabama
★ You are viewing this record
Sibling
June Abbott
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rebecca Abbott
Sibling · 1940 · age 18
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 — 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-t0627-00047-00420)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frances Franklin | 12 | Daughter | — | Alabama |
| 42 | Marietta Franklin | 10 | Daughter | — | Alabama |
| 43 | Henry Jr. Franklin | 8 | Son | — | Alabama |
| 44 | Harmon Franklin | 6 | Son | — | Alabama |
| 45 | Dorothy Sue Franklin | 4 | Daughter | — | Alabama |
| 46 | William Franklin | 2 | Son | — | Alabama |
| 47 | Nelson Stennett | 27 | Cousin | Machinist | Alabama |
| 48 | Arthur Smith | 31 | Head | Laborer | Alabama |
| 49 | Sarah Smith | 28 | Wife | — | Alabama |
| 50 | Arthur Jr. Smith | 9 | Son | — | Alabama |
| 51 | Lehman Smith | 7 | Son | — | Alabama |
| 52 | Missourie Smith | 5 | Daughter | — | Alabama |
| 53 | Edmond Smith | 4 | Son | — | Alabama |
| 54 | Dorothy Lee Smith | 2 | Daughter | — | Alabama |
| 55 | Metlee Smith | 55 | Mother | — | Alabama |
| 56 | Sam Hall | 43 | Head | Laborer | Alabama |
| 57 | Mary Hall | 41 | Wife | — | Alabama |
| 58 | Samuel Jr. Hall | 15 | Son | — | Alabama |
| 59 | Jake Williams | 42 | Head | Laborer | Alabama |
| 60 | Clara Williams | 41 | Wife | — | Alabama |
| 61 | Jake Jr. Williams | 14 | Son | — | Alabama |
| 62 | Milton Williams | 13 | Son | — | Alabama |
| 63 | James Williams | 11 | Son | — | Alabama |
| 64 | Jefferson Abbott | 43 | Head | Superviser | Alabama |
| 65 | Pearl Abbott | 41 | Wife | — | Alabama |
| 66 | Mary E. Abbott THIS PERSON | 20 | Daughter | — | Alabama |
| 67 | Rebecca Abbott | 18 | Daughter | — | Alabama |
| 68 | June E. Abbott | 17 | Daughter | — | Alabama |
| 69 | Ned Elliott | 26 | Head | — | Ohio |
| 70 | James Elliott | 27 | Son | Salesman | Alabama |
| 71 | Ruth Elliott | 24 | Daughter | — | Alabama |
| 72 | Ned Elliott | 4 | Son | — | Alabama |
| 73 | Eldom Crump | 35 | Head | Laborer | Alabama |
| 74 | Margrette Crump | 34 | Wife | — | Alabama |
| 75 | Rayford Crump | 13 | Son | — | Alabama |
| 76 | Sam Calahan | 45 | Head | Laborer | Alabama |
| 77 | Clara Calahan | 43 | Wife | — | Alabama |
| 78 | Clara Calahan | 18 | Daughter | — | Alabama |
| 79 | Edwin B. Willman | 43 | Brother in law | — | Alabama |
| 80 | Millard Inman | 32 | Head | Shearman | Alabama |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 5 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)