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Mary Mathews — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Mary Mathews across the 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1931), then head of a 7-person household.
Age 9
b. ~1931
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Mathews |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 39 |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Precinct 39 |
| Est. Birth Year | ~1931 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Cora Mathews | Daughter | — | 13 | ~1927 |
| John Mathews | Head | — | 40 | ~1900 |
| Mary Mathews | Daughter | — | 9 | ~1931 |
| Hazel Mathews | Daughter | — | 10 | ~1930 |
| Millie Mathews | Spouse | — | 43 | ~1897 |
| Christine Mathews | Daughter | — | 7 | ~1933 |
| Emma Mathews | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Jefferson, Alabama
Daughter, age 2
Jefferson, Alabama · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mathews |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Daughter, age 9
Jefferson-County, Alabama · implied b. ~1931 — 7 household members
| Surname | Mathews |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 39 |
| 1935 Residence (County) | Jefferson |
| Highest Grade | No 3 |
| 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 Mathews across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mathews
Daughter · 1940 · age 9 · b. ~1931 · Alabama
★ You are viewing this record
Sibling
Cora Mathews
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Mathews
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christine Mathews
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Mathews
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 — 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-t0627-00046-00141)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Addie May Couch | 17 | Daughter | — | Alabama |
| 2 | Samuel J Kelly | 33 | Head | Miner | Alabama |
| 3 | Lema Kelly | 31 | Wife | — | Mississippi |
| 4 | Samuel Jr Kelly | 12 | Son | — | Alabama |
| 5 | James C Kelly | 10 | Son | — | Alabama |
| 6 | Barbara J Kelly | 3 | Daughter | — | Alabama |
| 7 | Mirth Eugene | 15 | Lodger | — | Alabama |
| 8 | John Mathews | 40 | Head | Miner | Alabama |
| 9 | Millie M Mathews | 43 | Wife | — | Alabama |
| 10 | Emma Mathews | 17 | Daughter | — | Alabama |
| 11 | Cora M Mathews | 13 | Daughter | — | Alabama |
| 12 | Hazel Mathews | 10 | Daughter | — | Alabama |
| 13 | Mary Mathews THIS PERSON | 9 | Daughter | — | Alabama |
| 14 | Christine Mathews | 7 | Daughter | — | Alabama |
| 15 | William Beverly | 46 | Head | Miner | Alabama |
| 16 | Pauline Beverly | 42 | Wife | — | Alabama |
| 17 | Audry Henderson | 27 | Son in law | Laborer | Alabama |
| 18 | Audry Henderson | 18 | Wife | — | Alabama |
| 19 | Samuel Williams | 23 | Head | Miner | Alabama |
| 20 | Mamie L Williams | 17 | Wife | — | Alabama |
| 21 | Willie Samantha | 63 | Mother | — | Alabama |
| 22 | Jake Samantha | 69 | Father | — | Alabama |
| 23 | Sarah Chalmers | 66 | Aunt | — | Alabama |
| 24 | Celia Baker | 25 | Lodger | — | Alabama |
| 25 | Betty Williams | 4 | Niece | — | Alabama |
| 26 | Otis Williams | 2 | Nephew | — | Alabama |
| 27 | George Williams | 53 | Head | Miner | Alabama |
| 28 | Irene Williams | 41 | Wife | — | Alabama |
| 29 | Jimmie L Williams | 19 | Son | — | Alabama |
| 30 | Nathaniel Williams | 16 | Son | — | Alabama |
| 31 | James E Williams | 14 | Son | — | Alabama |
| 32 | Irene Williams | 13 | Daughter | — | Alabama |
| 33 | George Jr Williams | 10 | Son | — | Alabama |
| 34 | John Pratt | 52 | Head | Miner | Alabama |
| 35 | Nannie Pratt | 45 | Wife | Maid | Georgia |
| 36 | Clara Pratt | 76 | Mother | — | Alabama |
| 37 | Buster Parker | 36 | Head | Miner | Alabama |
| 38 | Carrie M Parker | 34 | Wife | — | Alabama |
| 39 | Enimias M Parker | 13 | Son | — | Alabama |
| 40 | Penner Farbrough | 65 | Mother in law | — | Alabama |
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)