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Mary Allison — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Davidson-County, Tennessee
Our Model Tree links this Mary Allison across the 1930 and 1940 US Censuses in Davidson-County, Tennessee (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 11-person household.
Age 18
b. ~1922
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Davidson-County, Tennessee |
| Surname | Allison |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Nashville City |
| 1935 Residence (County) | Davidson |
| Additional Details | |
| Occupation | Cook |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 208 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Cook |
| Township / Ward | Nashville City |
| Est. Birth Year | ~1922 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Allison | Daughter | — | 16 | ~1924 |
| Will Allison | Son | — | 7 | ~1933 |
| Will Allison | Head | — | 55 | ~1885 |
| Mary Allison | Daughter | — | 18 | ~1922 |
| Emma Allison | Spouse | — | 45 | ~1895 |
| John Allison | Son | — | 24 | ~1916 |
| Martha Johnson | Other | — | 74 | ~1866 |
| Mattie Allison | Daughter | — | 10 | ~1930 |
| Albert Allison | Son | — | 5 | ~1935 |
| Clara Allison | Daughter | — | 4 | ~1936 |
| Lucious Allison | Son | — | 16 | ~1924 |
Census Appearances
1930
Davidson, Tennessee
Daughter, age 8
Davidson, Tennessee · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allison |
| Given Name | Mary Lou |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Davidson-County, Tennessee
Daughter, age 18
Davidson-County, Tennessee · implied b. ~1922 — 11 household members
| Surname | Allison |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Nashville City |
| 1935 Residence (County) | Davidson |
| Occupation | Cook |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 208 |
| Highest Grade | No 8 |
| 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 Allison across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Allison
Daughter · 1940 · age 18 · b. ~1922 · Tennessee
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Sibling
John Allison
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Will Allison
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Allison
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Allison
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucious Allison
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Allison
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mattie Allison
Sibling · 1940 · age 10
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
39 people indexed on this census page (nara:1940:m-t0627-03973-00589)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Jones | 23 | Head | Porter | Tennessee |
| 2 | Annie Jones | 23 | Wife | — | Tennessee |
| 3 | Pauline Jones | 3 | Daughter | — | Tennessee |
| 4 | James Elmer Jones | 2 | Son | — | Tennessee |
| 5 | Amanda Armstrong | 71 | Head | — | Tennessee |
| 6 | Laura Simmons | 30 | Head | Cook | Tennessee |
| 7 | Mamie Moore | 18 | Sister | Housework | Tennessee |
| 8 | Will Allison | 55 | Head | Laborer | Tennessee |
| 9 | Emma Allison | 45 | Wife | Cook | Tennessee |
| 10 | Mary Lou Allison THIS PERSON | 18 | Daughter | Cook | Tennessee |
| 11 | Elizabeth Allison | 16 | Daughter | — | Tennessee |
| 12 | Mattie Bell Allison | 10 | Daughter | — | Tennessee |
| 13 | Clara Allison | 4 | Daughter | — | Tennessee |
| 14 | Lucious Allison | 16 | Son | — | Tennessee |
| 15 | Will Jr. Allison | 7 | Son | — | Tennessee |
| 16 | Albert Allison | 5 | Son | — | Tennessee |
| 17 | John Allison | 24 | Son | Laborer | Tennessee |
| 18 | Martha Mortie Johnson | 74 | Mother in law | — | Tennessee |
| 19 | Henry Bennett | 31 | Head | Porter | Tennessee |
| 20 | Alice Bennett | 35 | Wife | — | Tennessee |
| 21 | Henry Jr. Bennett | 14 | Son | — | Tennessee |
| 22 | Charlie Palmer | 25 | Lodger | Laborer | Tennessee |
| 23 | Will Aikin | 65 | Lodger | Houseman | Tennessee |
| 24 | Glad Robinson | 40 | Lodger | Maid | Tennessee |
| 25 | Mary B. Noel | 52 | Head | Maid | Tennessee |
| 26 | Ruth Noel | 26 | Daughter | — | Tennessee |
| 27 | Mildred Noel | 18 | Daughter | Cook | Tennessee |
| 28 | Lillie Noel | 16 | Daughter | — | Tennessee |
| 29 | Sam Noel | 17 | Son | — | Tennessee |
| 30 | Thomas Wright | 7 | Grandson | — | Tennessee |
| 31 | Owen Noel | 23 | Lodger | — | Tennessee |
| 32 | Grant Everett | 53 | Head | Laborer | Tennessee |
| 33 | Maggie Everett | 52 | Wife | — | Georgia |
| 34 | Robert Everett | 8 | Foster son | — | Tennessee |
| 35 | Jimmie Sullivan | 36 | Lodger | — | Tennessee |
| 36 | Annie Clay | 59 | Head | — | Tennessee |
| 37 | Annie Sutton | 33 | Niece | — | Tennessee |
| 38 | Robert Sutton | 40 | Nephew | Porter | Tennessee |
| 39 | Hilis Mae Owens | 11 | Niece | — | 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)