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Mary Buchanan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Chickasaw-County, Mississippi
Our Model Tree links this Mary Buchanan across the 1920, 1930 and 1940 US Censuses in Chickasaw-County, Mississippi (XGBoost, ~Confirmed), with identified parents Haskell & Marshall — first a spouse (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Spouse
Born: Mississippi
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Chickasaw-County, Mississippi |
| Surname | Buchanan |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 4 |
| 1935 Residence (County) | Chickasaw |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Township / Ward | Beat 4 |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Dorthy Buchanan | Daughter | — | 4 | ~1936 |
| Jas Buchanan | Head | — | 32 | ~1908 |
| Mary Buchanan | Spouse | — | 23 | ~1917 |
| Theopler Buchanan | Son | — | 2 | ~1938 |
Census Appearances
1920
Chickasaw, Mississippi
Daughter, age 1
Chickasaw, Mississippi · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1930
Chickasaw, Mississippi
Daughter, age 12
Chickasaw, Mississippi · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Chickasaw-County, Mississippi
Spouse, age 23
Chickasaw-County, Mississippi · implied b. ~1917 — 4 household members
| Surname | Buchanan |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 4 |
| 1935 Residence (County) | Chickasaw |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Buchanan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Haskell Buchanon (~0.92 confidence) and father Marshall Buchanan (~0.92 confidence) and father Brad Buchanan (~0.83 confidence) and mother Lottie Buchanan (~0.83 confidence) and mother Lula Buchanon (~0.92 confidence). The pedigree spans 2 generations with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
Haskell Buchanon
b. ~1898
Source father
● Household
· direct · ~0.92
Father
Marshall Buchanan
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Brad Buchanan
b. ~1840
Source father>father
● Household
· direct · ~0.83
Mother
Lottie Buchanan
b. ~1850
Source father>mother
● Household
· direct · ~0.83
Mother
Lula Buchanon
b. ~1901
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Buchanan
Spouse · 1940 · age 23 · b. ~1917 · Mississippi
★ 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 — Chickasaw-County, Mississippi
Open full size
1940 US Federal Census — Chickasaw-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02013-00575)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James E Mckinney | 9 | Son | — | Mississippi |
| 2 | Doris B Mckinney | 5 | Daughter | — | Mississippi |
| 3 | Jack Buckhan | 40 | Lodger | Laborer | Mississippi |
| 4 | Samuel (X) Cousins | 27 | Head | Laborer | Mississippi |
| 5 | Bertham Cousins | 21 | Wife | Teaching | Mississippi |
| 6 | Jas Rob (X) Patterson | 44 | Head | Farming | Mississippi |
| 7 | Annie L Patterson | 46 | Wife | — | Mississippi |
| 8 | Mary Patterson | 19 | Daughter | — | Mississippi |
| 9 | Annie P Patterson | 18 | Daughter | — | Mississippi |
| 10 | Jasie L Patterson | 15 | Daughter | — | Mississippi |
| 11 | Lizzie Patterson | 13 | Daughter | — | Mississippi |
| 12 | Virgie Patterson | 10 | Daughter | — | Mississippi |
| 13 | William Patterson | 8 | Son | — | Mississippi |
| 14 | Jas Frank Patterson | 5 | Son | — | Mississippi |
| 15 | Essie Patterson | 3 | Daughter | — | Mississippi |
| 16 | Mary Lee Patterson | 2 | Daughter | — | Mississippi |
| 17 | Bonder F (X) Berry | 22 | Head | Laborer | Mississippi |
| 18 | Julia B Berry | 18 | Wife | — | Mississippi |
| 19 | Auther C Berry | 1 | Son | — | Mississippi |
| 20 | Mary E Gresham | 52 | Head | — | Mississippi |
| 21 | Henrietta Gresham | 15 | Daughter | — | Mississippi |
| 22 | Clem Earl Gresham | 13 | Son | — | Mississippi |
| 23 | Ed Gresham | 10 | Son | — | Mississippi |
| 24 | Roger J (X) Davidson | 20 | Head | Laborer | Mississippi |
| 25 | Miller Mae Davidson | 21 | Wife | — | Mississippi |
| 26 | Clonnie Lee Davidson | 1 | Son | — | Mississippi |
| 27 | Shelley Fay Davidson | 0 | Daughter | — | Mississippi |
| 28 | Ann Miller | 62 | Uncle | Laborer | Mississippi |
| 29 | Alvin (X) Davidson | 26 | Head | Farming | Mississippi |
| 30 | Ruby Davidson | 23 | Wife | — | Mississippi |
| 31 | Curtis Davidson | 5 | Son | — | Mississippi |
| 32 | Clem Clifton Davidson | 3 | Son | — | Mississippi |
| 33 | James Davidson | 2 | Son | — | Mississippi |
| 34 | John D Davidson | 0 | Son | — | Mississippi |
| 35 | Jas Ross (X) Buchanan | 32 | Head | Wage Hand | Mississippi |
| 36 | Mary L Buchanan THIS PERSON | 23 | Wife | — | Mississippi |
| 37 | Dorthy Jean Buchanan | 4 | Daughter | — | Mississippi |
| 38 | Theopler Buchanan | 2 | Son | — | Mississippi |
| 39 | Julius A Aulburn | 58 | Head | Salesman | Mississippi |
| 40 | America E Aulburn | 57 | Wife | — | Mississippi |
Pedigree Summary
Mary
Gen 1 · 3 parents
~0.92
Gen 2 · 2 grandparents
~0.83
Max depth 4 (1900–1950 window)
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)