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Mary Mckinney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Coosa-County, Alabama
Our Model Tree links this Mary Mckinney across the 1930 and 1940 US Censuses in Coosa-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 10-person household.
Age 14
b. ~1926
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Coosa-County, Alabama |
| Surname | McKinney |
| Given Name | Mary Lena |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Election Precinct Beat 17 Lauderdale |
| 1935 Residence (County) | Coosa |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Election Precinct Beat 17 Lauderdale |
| Est. Birth Year | ~1926 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alena Mckinney | Spouse | — | 36 | ~1904 |
| Milbud Mckinney | Daughter | — | 15 | ~1925 |
| Henry Mckinney | Son | — | 17 | ~1923 |
| Cain Mckinney | Son | — | 8 | ~1932 |
| Ella Mckinney | Daughter | — | 6 | ~1934 |
| Mary Mckinney | Daughter | — | 14 | ~1926 |
| Ree Mckinney | Son | — | 4 | ~1936 |
| Lucille Mckinney | Head | — | 38 | ~1902 |
| Willie Mckinney | Son | — | 12 | ~1928 |
| Willard Mckinney | Son | — | 10 | ~1930 |
Census Appearances
1930
Talladega, Alabama
Daughter, age 5
Talladega, Alabama · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKinney |
| Given Name | Mary W. |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | none |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Coosa-County, Alabama
Daughter, age 14
Coosa-County, Alabama · implied b. ~1926 — 10 household members
| Surname | McKinney |
| Given Name | Mary Lena |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Election Precinct Beat 17 Lauderdale |
| 1935 Residence (County) | Coosa |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Mckinney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mckinney
Daughter · 1940 · age 14 · b. ~1926 · Alabama
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Sibling
Willie Mckinney
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ella Mckinney
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milbud Mckinney
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willard Mckinney
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cain Mckinney
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Mckinney
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ree Mckinney
Sibling · 1940 · age 4
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 — Coosa-County, Alabama
Open full size
1940 US Federal Census — Coosa-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00019-00359)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | M. L. Marbury | 16 | Son | Farm Hand | Alabama |
| 2 | Annie Pearl Marbury | 5 | Granddaughter | — | Alabama |
| 3 | Wesley Mckinney | 62 | Head | Farmer | Alabama |
| 4 | Ella Mckinney | 55 | Wife | Home Worker | Alabama |
| 5 | George Mckinney | 35 | Son | Laborer | Alabama |
| 6 | H. B. Mckinney | 11 | Grandson | — | Alabama |
| 7 | Lillie M. Spivey | 24 | Granddaughter | Servant | Alabama |
| 8 | Lonzie Thomas | 18 | Son-in-law | Laborer | Alabama |
| 9 | John H. Burton | 24 | Head | Home Worker | Alabama |
| 10 | Mattie M. Burton | 20 | Wife | Farmer | Alabama |
| 11 | Lucille Mckinney | 38 | Head | Home Worker | Alabama |
| 12 | Alena Mckinney | 36 | Wife | Laborer | Alabama |
| 13 | Henry Lou Mckinney | 17 | Son | Laborer | Alabama |
| 14 | Milbud Mckinney | 15 | Daughter | — | Alabama |
| 15 | Mary Lena Mckinney THIS PERSON | 14 | Daughter | — | Alabama |
| 16 | Willie Lucille Mckinney | 12 | Son | — | Alabama |
| 17 | Willard Mckinney | 10 | Son | — | Alabama |
| 18 | Cain Mckinney | 8 | Son | — | Alabama |
| 19 | Ella Bell Mckinney | 6 | Daughter | — | Alabama |
| 20 | Ree Mckinney | 4 | Son | — | Alabama |
| 21 | Tal Graham | 25 | Head | Laborer | Alabama |
| 22 | Tera Graham | 21 | Wife | Home Worker | Alabama |
| 23 | Charles Edward Graham | 2 | Son | — | Alabama |
| 24 | Henry James Graham | 1 | Son | — | Alabama |
| 25 | John Mckinney | 31 | Head | Farmer | Alabama |
| 26 | Bertha Mckinney | 26 | Wife | Home Worker | Alabama |
| 27 | Leonard Mckinney | 13 | Son | — | Alabama |
| 28 | Mary Mckinney | 8 | Daughter | — | Alabama |
| 29 | John Arthur Toney | 57 | Head | Farmer | Alabama |
| 30 | Clammie Toney | 54 | Wife | Home Work | Alabama |
| 31 | Charles William Toney | 3 | Grandson | — | Alabama |
| 32 | Bessie Thomas | 31 | Head | Farm Hand | Alabama |
| 33 | Alissa Thomas | 18 | Daughter | House Worker | Alabama |
| 34 | Auston Thomas | 17 | Son | Farm Hand | Alabama |
| 35 | Tellis Cunningham | 51 | Head | Laborer | Alabama |
| 36 | Flora Cunningham | 50 | Wife | Home Worker | Alabama |
| 37 | Grover Cunningham | 24 | Son | Laborer | Alabama |
| 38 | John Albert Cunningham | 18 | Son | Laborer | Alabama |
| 39 | Limmie Cunningham | 17 | Son | Laborer | Alabama |
| 40 | Grover C. Foster | 54 | Head | Farmer | Alabama |
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)