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Mary Buchanan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Davidson-County, Tennessee
Our Model Tree links this Mary Buchanan across the 1930 and 1940 US Censuses in Davidson-County, Tennessee (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Davidson-County, Tennessee |
| Surname | Buchanan |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | 9th Civil District |
| 1935 Residence (County) | Davidson |
| Additional Details | |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | 9Th Civil District |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Savannah Buchanan | Spouse | — | 43 | ~1897 |
| Lera Buchanan | Daughter | — | 11 | ~1929 |
| Elizabeth Buchanan | Daughter | — | 17 | ~1923 |
| William Buchanan | Son | — | 5 | ~1935 |
| Mary Buchanan | Daughter | — | 15 | ~1925 |
| Irene Buchanan | Daughter | — | 9 | ~1931 |
| Annie Buchanan | Daughter | — | 3 | ~1937 |
| Edna Buchanan | Daughter | — | 12 | ~1928 |
| Irvin Buchanan | Head | — | 48 | ~1892 |
Census Appearances
1930
Davidson, Tennessee
Daughter, age 4
Davidson, Tennessee · implied b. ~1926 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | BUCHANAN |
| Given Name | MARGARET V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Davidson-County, Tennessee
Daughter, age 15
Davidson-County, Tennessee · implied b. ~1925 — 9 household members
| Surname | Buchanan |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | 9th Civil District |
| 1935 Residence (County) | Davidson |
| Highest Grade | No 1 |
| 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 Buchanan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Buchanan
Daughter · 1940 · age 15 · b. ~1925 · Tennessee
★ You are viewing this record
Sibling
Elizabeth Buchanan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lera Buchanan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Buchanan
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Buchanan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Buchanan
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Buchanan
Sibling · 1940 · age 3
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 — Davidson-County, Tennessee
Open full size
1940 US Federal Census — Davidson-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03885-00613)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Doris Hutton | 15 | Daughter | — | Tennessee |
| 2 | Mattie Binkley | 73 | Mother-in-law | — | Tennessee |
| 3 | Dot Perry | 32 | Head | Laborer | Tennessee |
| 4 | Eunice Perry | 32 | Wife | — | Tennessee |
| 5 | Thomas Perry | 8 | Son | — | Tennessee |
| 6 | Dorothy Perry | 6 | Daughter | — | Tennessee |
| 7 | Irvin Buchanan | 48 | Head | Laborer | Tennessee |
| 8 | Savannah Buchanan | 43 | Wife | — | Tennessee |
| 9 | Elizabeth Buchanan | 17 | Daughter | — | Tennessee |
| 10 | Mary Jane Buchanan THIS PERSON | 15 | Daughter | — | Tennessee |
| 11 | Edna B. Buchanan | 12 | Daughter | — | Tennessee |
| 12 | Lera Mai Buchanan | 11 | Daughter | — | Tennessee |
| 13 | Irene Buchanan | 9 | Daughter | — | Tennessee |
| 14 | William Buchanan | 5 | Son | — | Tennessee |
| 15 | Annie Buchanan | 3 | Daughter | — | Tennessee |
| 16 | Linsey Woods | 67 | Head | — | Tennessee |
| 17 | Cynthia Woods | 60 | Wife | — | Tennessee |
| 18 | Jennie Mai Carney | 42 | Head | Cook | Tennessee |
| 19 | Will Mays | 42 | Lodger | Laborer | Tennessee |
| 20 | Innis Hulme | 59 | Head | Operator | Tennessee |
| 21 | Effie Hulme | 44 | Wife | — | Tennessee |
| 22 | Herbert Hulme | 27 | Son | Helper | Tennessee |
| 23 | Regen Hulme | 23 | Son | Helper | Tennessee |
| 24 | Henry Hermann | 49 | Head | Designer | Missouri |
| 25 | Nancy Hermann | 39 | Wife | — | Tennessee |
| 26 | Charles Jr. Rose | 39 | Head | Assistant Sec | Tennessee |
| 27 | Dorothy Rose | 34 | Wife | Secretary | Tennessee |
| 28 | Will Anderson | 82 | Head | — | Tennessee |
| 29 | Lillie Mai Anderson | 58 | Daughter | Teacher | Tennessee |
| 30 | Woodford Carney | 34 | Head | Laborer | Tennessee |
| 31 | Edna Carney | 26 | Wife | — | Tennessee |
| 32 | Dorothy Carney | 8 | Daughter | — | Tennessee |
| 33 | Evelyn Carney | 6 | Daughter | — | Tennessee |
| 34 | Doris Marie Carney | 5 | Daughter | — | Tennessee |
| 35 | James Carney | 3 | Son | — | Tennessee |
| 36 | Wash Greer | 65 | Head | — | Tennessee |
| 37 | Eva Greer | 28 | Wife | — | Tennessee |
| 38 | Eugene Greer | 15 | Son | — | Tennessee |
| 39 | Joe Peach | 62 | Head | Laborer | Tennessee |
| 40 | Floyd Cochran | 27 | Head | Laborer | 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)