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Mary Mathis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Shelby-County, Alabama
Our Model Tree links this Mary Mathis across the 1930 and 1940 US Censuses in Shelby-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Alabama |
| Surname | Mathis |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Vincent |
| Est. Birth Year | ~1924 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Madeline Mathis | Daughter | — | 11 | ~1929 |
| J Mathis | Son | — | 14 | ~1926 |
| Vera Mathis | Spouse | — | 36 | ~1904 |
| Mary Mathis | Daughter | — | 16 | ~1924 |
| Alpha Mathis | Son | — | 8 | ~1932 |
| May Mathis | Daughter | — | 13 | ~1927 |
| Fred Mathis | Son | — | 15 | ~1925 |
| Fred Mathis | Head | — | 39 | ~1901 |
Census Appearances
1930
Shelby, Alabama
Daughter, age 6
Shelby, Alabama · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mathis |
| Given Name | Mary Eloise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Shelby-County, Alabama
Daughter, age 16
Shelby-County, Alabama · implied b. ~1924 — 8 household members
| Surname | Mathis |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (County) | Shelby |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Alabama |
| 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 Mathis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mathis
Daughter · 1940 · age 16 · b. ~1924 · Alabama
★ You are viewing this record
Sibling
J Mathis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Mathis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alpha Mathis
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
May Mathis
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Mathis
Sibling · 1940 · age 15
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 — Shelby-County, Alabama
Open full size
1940 US Federal Census — Shelby-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00079-00510)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eldridge Lawson | 4 | Daughter | — | Alabama |
| 42 | Daphne Lawson | 1 | Daughter | — | Alabama |
| 43 | Kate Q Mckenzie | 54 | Head | — | Alabama |
| 44 | Chester Mckenzie | 36 | Son | Farm | Alabama |
| 45 | Robert L Mckenzie | 17 | Son | Farm | Alabama |
| 46 | Frankie Mckenzie | 14 | Grand-daughter | Farm | Alabama |
| 47 | Annie Sue Mckenzie | 11 | Grand-daughter | — | Alabama |
| 48 | Katie Mae Sweeney | 9 | Grand-daughter | — | Alabama |
| 49 | Alberta Sweeney | 8 | Grand-daughter | — | Alabama |
| 50 | Benjamin J Day | 67 | Head | Farm | Alabama |
| 51 | Robert L Carr | 67 | Head | Farm | Alabama |
| 52 | Mattie L Carr | 68 | Wife | — | Alabama |
| 53 | Thomas M Shrader | 47 | Head | Farm | Alabama |
| 54 | Dollie W Shrader | 46 | Wife | — | Alabama |
| 55 | Gladys Shrader | 18 | Daughter | N.Y.A. Lunch R | Alabama |
| 56 | Carl Shrader | 14 | Son | — | Alabama |
| 57 | Monta Shrader | 12 | Daughter | — | Alabama |
| 58 | Lera Jean Shrader | 5 | Daughter | — | Alabama |
| 59 | Robert A Kidd | 34 | Head | Farm | Alabama |
| 60 | Allie Mae Kidd | 29 | Wife | — | Alabama |
| 61 | Juanitta Kidd | 9 | Daughter | — | Alabama |
| 62 | George P Kidd | 7 | Son | — | Alabama |
| 63 | Mary R Kidd | 5 | Daughter | — | Alabama |
| 64 | Robt E Kidd | 1 | Son | — | Alabama |
| 65 | Mack C Kidd | 29 | Head | Farm | Alabama |
| 66 | Nettie J Kidd | 36 | Daughter | Public School | Alabama |
| 67 | Charlie Kidd | 17 | Son | Farm | Alabama |
| 68 | Curtis E Fleming | 36 | Head | Farm | Alabama |
| 69 | Essie G Fleming | 35 | Wife | — | Alabama |
| 70 | Jamie B Fleming | 12 | Daughter | — | Alabama |
| 71 | Flora C Fleming | 10 | Daughter | — | Alabama |
| 72 | Curtis E Jr Fleming | 7 | Son | — | Alabama |
| 73 | Fred Mathis | 39 | Head | Farmer | Alabama |
| 74 | Vera G Mathis | 36 | Wife | — | Alabama |
| 75 | Mary F Mathis THIS PERSON | 16 | Daughter | — | Alabama |
| 76 | Fred Jr Mathis | 15 | Son | — | Alabama |
| 77 | J. B. Mathis | 14 | Son | — | Alabama |
| 78 | May V Mathis | 13 | Daughter | — | Alabama |
| 79 | Madeline Mathis | 11 | Daughter | — | Alabama |
| 80 | Alpha Mathis | 8 | Son | — | 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)