MC
Mary Cowan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Arkansas
Our Model Tree links this Mary Cowan across the 1930 and 1940 US Censuses in Polk-County, Arkansas (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 6-person household.
Age 44
b. ~1896
Female
Spouse
Born: Arkansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Arkansas |
| Surname | Cowan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Ozark Township |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Township / Ward | Ozark Township |
| Est. Birth Year | ~1896 |
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 |
|---|---|---|---|---|
| Sidney Cowan | Son | — | 7 | ~1933 |
| Lewis Cowan | Son | — | 11 | ~1929 |
| Beatrice Cowan | Daughter | — | 18 | ~1922 |
| Alex Cowan | Head | — | 51 | ~1889 |
| Bessie Cowan | Daughter | — | 13 | ~1927 |
| Mary Cowan | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Polk, Arkansas
Other, age 33
Polk, Arkansas · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | Mary |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Arkansas |
| Age at First Marriage | 16 |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Polk-County, Arkansas
Spouse, age 44
Polk-County, Arkansas · implied b. ~1896 — 6 household members
| Surname | Cowan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Ozark Township |
| 1935 Residence (County) | Polk |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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 44 · b. ~1896 · Arkansas
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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 — Polk-County, Arkansas
Open full size
1940 US Federal Census — Polk-County, Arkansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00163-00360)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Z Wise | 47 | Head | Farmer | Texas |
| 2 | Fay Wise | 42 | Wife | — | Texas |
| 3 | Delbert Wise | 20 | Son | Laborer | Texas |
| 4 | James Wise | 18 | Son | Laborer | Texas |
| 5 | William Wise | 16 | Son | Laborer | Texas |
| 6 | Leona Wise | 14 | Daughter | — | Texas |
| 7 | Melvin Wise | 10 | Son | — | Texas |
| 8 | Zeldia Wise | 7 | Daughter | — | Texas |
| 9 | Ocie Ross | 67 | Head | Farmer | Indiana |
| 10 | Guy Ross | 42 | Son | Laborer | Arkansas |
| 11 | Alex Cowan | 51 | Head | — | Arkansas |
| 12 | Mary Cowan THIS PERSON | 44 | Wife | — | Arkansas |
| 13 | Beatrice Cowan | 18 | Daughter | Housekeeping | Arkansas |
| 14 | Bessie Cowan | 13 | Daughter | — | Arkansas |
| 15 | Lewis Cowan | 11 | Son | — | Arkansas |
| 16 | Sidney Cowan | 7 | Son | — | Arkansas |
| 17 | Raymond Johnson | 46 | Head | Farmer | Michigan |
| 18 | Jettie Vikroy | 37 | Head | Farmer | Arkansas |
| 19 | Nancie Vikroy | 36 | Wife | — | Oklahoma |
| 20 | Helen Vikroy | 14 | Daughter | — | Arkansas |
| 21 | Marjean Vikroy | 13 | Daughter | — | Arkansas |
| 22 | Margaret Vikroy | 9 | Daughter | — | Arkansas |
| 23 | Thomas D Wilson | 71 | Head | Farmer | Iowa |
| 24 | Elizabeth Wilson | 68 | Wife | — | Iowa |
| 25 | Joe Blackmon | 56 | Head | Farmer | Mississippi |
| 26 | Jamie Blackmon | 41 | Wife | — | Louisiana |
| 27 | Linn Blackmon | 15 | Son | — | Arkansas |
| 28 | David Blackmon | 6 | Son | — | Arkansas |
| 29 | Pauline Darden | 16 | Daughter | — | Louisiana |
| 30 | Otis Darden | 16 | Son-in-law | Laborer | Arkansas |
| 31 | Lewis George | 34 | Head | Bus Driver | Arkansas |
| 32 | Ima George | 29 | Wife | — | Arkansas |
| 33 | Carl George | 4 | Son | — | Arkansas |
| 34 | Bert D Mccallum | 44 | Head | Farmer | Arkansas |
| 35 | Bessie Mccallum | 44 | Wife | — | Arkansas |
| 36 | Marjorie Mccallum | 16 | Daughter | — | Arkansas |
| 37 | Milte D Kasmer | 48 | Head | — | Kansas |
| 38 | John S Atchley | 57 | Head | Farmer | Arkansas |
| 39 | Buna Atchley | 47 | Wife | — | Missouri |
| 40 | Floyd Atchley | 13 | Son | — | Arkansas |
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)