MC
Mary Cowan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Tennessee
Our Model Tree links this Mary Cowan across the 1930 and 1940 US Censuses in Knox-County, Tennessee (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Tennessee |
| Surname | Cowan |
| Given Name | Mary G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Civil District 15 |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | Seamstress |
| Industry | Clothing Factory |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 496 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Seamstress |
| Township / Ward | Civil District 15 |
| Est. Birth Year | ~1915 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elsie Cowan | Daughter | — | 20 | ~1920 |
| Mary Cowan | Daughter | — | 25 | ~1915 |
| Gloria Cowan | Daughter | — | 15 | ~1925 |
| Clarence Cowan | Head | — | 51 | ~1889 |
| Goldie Cowan | Daughter | — | 18 | ~1922 |
| Gladys Cowan | Daughter | — | 28 | ~1912 |
Census Appearances
1930
Knox, Tennessee
Daughter, age 15
Knox, Tennessee · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | Mary G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Knox-County, Tennessee
Daughter, age 25
Knox-County, Tennessee · implied b. ~1915 — 6 household members
| Surname | Cowan |
| Given Name | Mary G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Civil District 15 |
| 1935 Residence (County) | Knox |
| Occupation | Seamstress |
| Industry | Clothing Factory |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 496 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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
Daughter · 1940 · age 25 · b. ~1915 · Tennessee
★ You are viewing this record
Sibling
Gladys Cowan
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gloria Cowan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Cowan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Goldie Cowan
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 — Knox-County, Tennessee
Open full size
1940 US Federal Census — Knox-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03910-00829)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty J Griffin | 12 | Daughter | — | Tennessee |
| 2 | Lee D Kyle | 24 | Head | Laborer | Tennessee |
| 3 | Iva M Kyle | 25 | Wife | — | Tennessee |
| 4 | Leroy C Kyle | 5 | Son | — | Tennessee |
| 5 | Glenn R Kyle | 3 | Son | — | Tennessee |
| 6 | Willie L Brooks | 13 | Niece | — | Tennessee |
| 7 | William H Stalsworth | 23 | Head | Machinist | Tennessee |
| 8 | Janice A Stalsworth | 21 | Wife | — | Tennessee |
| 9 | Anna R Stalsworth | 1 | Daughter | — | Tennessee |
| 10 | Claude Adair | 28 | Head | Attendant | Tennessee |
| 11 | Clara Adair | 30 | Wife | School Teacher | Tennessee |
| 12 | Carolyn A Adair | 1 | Daughter | — | Tennessee |
| 13 | Ben F Thomas | 61 | Head | Laborer | Tennessee |
| 14 | Gertrude Thomas | 32 | Wife | — | Tennessee |
| 15 | Houston Thomas | 8 | Son | — | Tennessee |
| 16 | Carl L Wilhite | 53 | Head | Farmer | Tennessee |
| 17 | Jennie Wilhite | 45 | Wife | — | Tennessee |
| 18 | Sam Wilhite | 23 | Son | Laborer | Tennessee |
| 19 | Alma Wilhite | 21 | Daughter | Seamstress | Tennessee |
| 20 | Herman Wilhite | 18 | Son | Laborer | Tennessee |
| 21 | Marie Wilhite | 16 | Daughter | — | Tennessee |
| 22 | Lloyd Wilhite | 13 | Son | — | Tennessee |
| 23 | Melyn Wilhite | 11 | Daughter | — | Tennessee |
| 24 | George Wilhite | 9 | Son | — | Tennessee |
| 25 | Kenneth Wilhite | 6 | Son | — | Tennessee |
| 26 | Clarence Wilhite | 3 | Son | — | Tennessee |
| 27 | Joyce Wilhite | 3 | Daughter | — | Tennessee |
| 28 | Guy Wilhite | 0 | Son | — | Tennessee |
| 29 | Clarence Cowan | 51 | Head | Farmer | Tennessee |
| 30 | Gladys Cowan | 28 | Daughter | Seamstress | Tennessee |
| 31 | Mary G Cowan THIS PERSON | 25 | Daughter | Seamstress | Tennessee |
| 32 | Elsie O Cowan | 20 | Daughter | Seamstress | Tennessee |
| 33 | Goldie Cowan | 18 | Daughter | — | Tennessee |
| 34 | Gloria Cowan | 15 | Daughter | — | Tennessee |
| 35 | Ida O Mills | 53 | Head | Seamstress | Tennessee |
| 36 | Nina Mills | 21 | Daughter | Inspector | Tennessee |
| 37 | Bertha Mills | 19 | Daughter | New Worker | Tennessee |
| 38 | Joseph C Mills | 13 | Son | — | Tennessee |
| 39 | Cecil Hughes | 27 | Head | Attendant | Tennessee |
| 40 | Edythe B Hughes | 26 | Wife | Seamstress | 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)