MC
Mary Cowan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Smith-County, Tennessee
Our Model Tree links this Mary Cowan across the 1930 and 1940 US Censuses in Smith-County, Tennessee (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Female
Spouse
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Smith-County, Tennessee |
| Surname | Cowan |
| Given Name | Mary R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Putnam |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | Civil District 8 |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patrick Cowan | Son | — | 17 | ~1923 |
| Solon Cowan | Son | — | 9 | ~1931 |
| Walter Cowan | Head | — | 38 | ~1902 |
| George Cowan | Son | — | 16 | ~1924 |
| Mary Cowan | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Smith, Tennessee
Spouse, age 25
Smith, Tennessee · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Age at First Marriage | 16 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Smith-County, Tennessee
Spouse, age 35
Smith-County, Tennessee · implied b. ~1905 — 5 household members
| Surname | Cowan |
| Given Name | Mary R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Putnam |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Tennessee |
| 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
Spouse · 1940 · age 35 · b. ~1905 · Tennessee
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Smith-County, Tennessee
Open full size
1940 US Federal Census — Smith-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03936-00196)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ben T. Thackitt | 3 | Grand-son | — | Tennessee |
| 2 | Hellen L. Thackitt | 2 | Grand-daughter | — | Tennessee |
| 3 | Walter M. Cowan | 38 | Head | Farmer | Tennessee |
| 4 | Mary R. Cowan THIS PERSON | 35 | Wife | — | Tennessee |
| 5 | Patrick T. Cowan | 17 | Son | Farmer | Tennessee |
| 6 | George T. Cowan | 16 | Son | Farmer | Tennessee |
| 7 | Solon R. Cowan | 9 | Son | — | Tennessee |
| 8 | Don R. Mcdonald | 67 | Head | Farmer | Tennessee |
| 9 | Eliza Mcdonald | 62 | Wife | — | Tennessee |
| 10 | Oliver G. Mcdonald | 32 | Son | Farmer | Tennessee |
| 11 | Lassie M. Young | 30 | Daughter | — | Tennessee |
| 12 | Luther A. Franklin | 70 | Head | Farmer | Tennessee |
| 13 | Mary E. Franklin | 69 | Wife | — | Tennessee |
| 14 | Alfred B. Franklin | 38 | Son | Farmer | Tennessee |
| 15 | Bethel F. Franklin | 41 | Daughter-in-law | — | Tennessee |
| 16 | Helen F. Franklin | 14 | Grand-daughter | — | Tennessee |
| 17 | George A. Beckman | 71 | Head | — | Tennessee |
| 18 | Mollie E. Beckman | 68 | Wife | — | Tennessee |
| 19 | Willie H. Woodard | 26 | Head | Farmer | Tennessee |
| 20 | Mary H. Woodard | 31 | Wife | — | Tennessee |
| 21 | Chloris J. Woodard | 7 | Daughter | — | Tennessee |
| 22 | James T. Woodard | 5 | Son | — | Tennessee |
| 23 | Gerald D. Woodard | 3 | Daughter | — | Tennessee |
| 24 | Bettie H. Apple | 64 | Mother-in-law | — | Tennessee |
| 25 | Herman H. Woodard | 50 | Head | Farmer | Tennessee |
| 26 | Mary L. Woodard | 45 | Wife | — | Tennessee |
| 27 | Floy L. Woodard | 14 | Daughter | — | Tennessee |
| 28 | Hazel B. Woodard | 9 | Son | — | Tennessee |
| 29 | Curtis H. Woodard | 7 | Son | — | Tennessee |
| 30 | Mildred A. Woodard | 1 | Daughter | — | Tennessee |
| 31 | George I. Grogan | 38 | Head | Farmer | Tennessee |
| 32 | Eliza M. Grogan | 32 | Wife | — | Tennessee |
| 33 | James T. Grogan | 16 | Son | Farmer | Tennessee |
| 34 | Ola M. Grogan | 5 | Daughter | — | Tennessee |
| 35 | William A. Grogan | 2 | Son | — | Tennessee |
| 36 | Daisy R. Grogan | 0 | Daughter | — | Tennessee |
| 37 | William H. Cardwell | 72 | Head | Farmer | Tennessee |
| 38 | Lydia A. Cardwell | 75 | Wife | — | Tennessee |
| 39 | J. T. Carter | 17 | Head | Farmer | Tennessee |
| 40 | Modena A. Carter | 19 | Wife | — | 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)