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Mary Mathis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Tammany-County, Louisiana
Our Model Tree links this Mary Mathis across the 1930 and 1940 US Censuses in St.-Tammany-County, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Female
Daughter
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Tammany-County, Louisiana |
| Surname | Mathis |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Covington Town |
| 1935 Residence (County) | St. Tammany |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | Covington Town |
| Est. Birth Year | ~1926 |
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 |
|---|---|---|---|---|
| Harold Mathis | Son | — | 19 | ~1921 |
| Arthur Mathis | Son | — | 22 | ~1918 |
| Henry Mathis | Son | — | 25 | ~1915 |
| Mary Mathis | Daughter | — | 14 | ~1926 |
| Helda Mathis | Spouse | — | 49 | ~1891 |
| Julian Mathis | Son | — | 17 | ~1923 |
| Daniel Mathis | Head | — | 50 | ~1890 |
Census Appearances
1930
St Tammany, …
Daughter, age 4
St Tammany, Louisiana · implied b. ~1926 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mathies |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read/Write | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
St.-Tammany-County, Louisiana
Daughter, age 14
St.-Tammany-County, Louisiana · implied b. ~1926 — 7 household members
| Surname | Mathis |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Covington Town |
| 1935 Residence (County) | St. Tammany |
| Industry | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 14 · b. ~1926 · Louisiana
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Sibling
Henry Mathis
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Mathis
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julian Mathis
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Mathis
Sibling · 1940 · age 19
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 — St.-Tammany-County, Louisiana
Open full size
1940 US Federal Census — St.-Tammany-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01455-00219)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Julian | 46 | Head | Florist | Louisiana |
| 2 | Emile Julian | 26 | Wife | — | Louisiana |
| 3 | Joyce Planche | 1 | Lodger | — | Louisiana |
| 4 | Blanche Julian | 76 | Mother | — | Louisiana |
| 5 | Kenneth W. Julian | 28 | Head | Assistant Service | Louisiana |
| 6 | Esther Julian | 32 | Wife | — | Louisiana |
| 7 | Henry J. Julian | 0 | Son | — | Louisiana |
| 8 | Lucien H. Baron | 52 | Head | Farmer | Louisiana |
| 9 | Hazel Baron | 38 | Wife | — | Louisiana |
| 10 | Evelyn Baron | 12 | Daughter | — | Louisiana |
| 11 | Charles Jenkins | 44 | Head | Owner | Louisiana |
| 12 | Myrtle Jenkins | 35 | Wife | — | Louisiana |
| 13 | Pearl Johnson | 17 | Daughter | — | Louisiana |
| 14 | Dorothy Johnson | 14 | Step daughter | — | Louisiana |
| 15 | Janet Jenkins | 7 | Daughter | — | Louisiana |
| 16 | Emmett Blackwell | 18 | Nephew | — | Louisiana |
| 17 | Dalton Barranger | 39 | Head | Attorney At Law | Louisiana |
| 18 | Miriam Barranger | 34 | Wife | — | Louisiana |
| 19 | Garic Barranger | 5 | Son | — | Louisiana |
| 20 | Palmer O'Meallie | 7 | Nephew | — | Louisiana |
| 21 | William Smart | 45 | Head | Manager | Louisiana |
| 22 | Lucile Smart | 38 | Wife | — | Louisiana |
| 23 | William Jr. Smart | 6 | Son | — | Louisiana |
| 24 | Lucile Smart | 3 | Daughter | — | Louisiana |
| 25 | Gilbert Johnson | 31 | Herdsman | Gardener | Alabama |
| 26 | Thelma Johnson | 28 | Cook | Cook | Louisiana |
| 27 | — | None | — | — | — |
| 28 | Daniel Mathis | 50 | Head | — | Louisiana |
| 29 | Helda Mathis | 49 | Wife | — | Louisiana |
| 30 | Henry A. Mathis | 25 | Son | Company Clerk | Louisiana |
| 31 | Arthur Mathis | 22 | Son | Salesman | Louisiana |
| 32 | Harold Mathis | 19 | Son | Carpenter | Louisiana |
| 33 | Julian Mathis | 17 | Son | — | Louisiana |
| 34 | Mary L. Mathis THIS PERSON | 14 | Daughter | — | Louisiana |
| 35 | R. Sam Glassman | 62 | Head | Assessor | Louisiana |
| 36 | Sarah Glassman | 58 | Wife | — | Louisiana |
| 37 | David Glassman | 20 | Son | Salesman | Louisiana |
| 38 | Larson Beach | 40 | Head | Bartender | Iowa |
| 39 | Katherine Beach | 32 | Wife | — | Wisconsin |
| 40 | John Beach | 1 | Son | — | Louisiana |
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)