MC
Mary Cowan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sullivan-County, Tennessee
Our Model Tree links this Mary Cowan across the 1930 and 1940 US Censuses in Sullivan-County, Tennessee (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Female
Spouse
Born: Florida
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sullivan-County, Tennessee |
| Surname | Cowan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | R-2 Bristol Tennessee |
| 1935 Residence (County) | Sullivan |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Township / Ward | R2 Bristol Tennessee |
| Est. Birth Year | ~1889 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Charles Cowan | Son | — | 23 | ~1917 |
| Mary Cowan | Spouse | — | 51 | ~1889 |
| Charles Cowan | Head | — | 54 | ~1886 |
| Jack Cowan | Son | — | 19 | ~1921 |
Census Appearances
1930
Sullivan, Tennessee
Other, age 42
Sullivan, Tennessee · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | Mary C |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Florida |
| Age at First Marriage | 27 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Sullivan-County, Tennessee
Spouse, age 51
Sullivan-County, Tennessee · implied b. ~1889 — 4 household members
| Surname | Cowan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | R-2 Bristol Tennessee |
| 1935 Residence (County) | Sullivan |
| Income (1939) | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
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 Cowan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cowan
Spouse · 1940 · age 51 · b. ~1889 · Tennessee
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sullivan-County, Tennessee
Open full size
1940 US Federal Census — Sullivan-County, Tennessee
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-03938-00869)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lelia Lowe | 71 | Mother in law | — | Alabama |
| 42 | Richard Devault | 50 | Head | Operator | Tennessee |
| 43 | Virginia Devault | 36 | Wife | — | North Carolina |
| 44 | James R. Devault | 10 | Son | — | Tennessee |
| 45 | Harry B. Peters | 35 | Head | Farmer | Virginia |
| 46 | Annie E. Peters | 45 | Wife | — | Virginia |
| 47 | Sue Arma | 28 | Daughter | Secty. | Virginia |
| 48 | Carl King | 24 | Son in law | Mechanic | Virginia |
| 49 | Leona B. King | 22 | Daughter | Cashier | Virginia |
| 50 | Bernard Corena | 58 | Head | Flagman | Pennsylvania |
| 51 | Violette Corena | 58 | Wife | — | Pennsylvania |
| 52 | Violette Corena | 32 | Daughter | Cashier | Virginia |
| 53 | Walter Cass | 43 | Head | Office Manager | Tennessee |
| 54 | Edith Cass | 38 | Wife | — | Tennessee |
| 55 | Edmund Cass | 18 | Son | — | Tennessee |
| 56 | Robert Cass | 9 | Son | — | Tennessee |
| 57 | Charles Cowan | 54 | Head | Manager | Tennessee |
| 58 | Mary Cowan THIS PERSON | 51 | Wife | — | Florida |
| 59 | Charles Jr. Cowan | 23 | Son | Engineering | Virginia |
| 60 | Jack P. Cowan | 19 | Son | In School | Tennessee |
| 61 | Margaret Simmons | 47 | Head | — | Virginia |
| 62 | Ileen Simmons | 18 | Daughter | In School | Virginia |
| 63 | Herbert B. Taylor | 35 | Head | Foreman | Kentucky |
| 64 | Ethel Taylor | 25 | Wife | — | Tennessee |
| 65 | Emmett C. Ashley | 47 | Head | Block Mfg. | Virginia |
| 66 | Viv Ashley | 33 | Wife | — | Virginia |
| 67 | Catherine Ashley | 20 | Daughter | In School | Virginia |
| 68 | Joe Ashley | 11 | Son | — | Tennessee |
| 69 | Jimmie Ashley | 3 | Son | — | Tennessee |
| 70 | David Ashley | 3 | Son | — | Tennessee |
| 71 | Thomas R. Good | 49 | Head | Train Master | Tennessee |
| 72 | Blanche Good | 49 | Wife | — | Tennessee |
| 73 | Mary C. Good | 27 | Daughter | Teacher | Tennessee |
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)