MS
Mary Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Chambers-County, Alabama
Our Model Tree links this Mary Smith across the 1920, 1930 and 1940 US Censuses in Chambers-County, Alabama (XGBoost, ~Confirmed), with identified parents Jim & Limps — first a daughter (b.~1919), then head of a 8-person household.
Age 21
b. ~1919
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Chambers-County, Alabama |
| Surname | Smith |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (County) | Chambers |
| Additional Details | |
| Hours Worked | 30 |
| Highest Grade | No 7 |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Beat 7 Cusseta Roads |
| Est. Birth Year | ~1919 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lillie Smith | Daughter | — | 18 | ~1922 |
| Burdene Smith | Daughter | — | 2 | ~1938 |
| Mary Smith | Daughter | — | 21 | ~1919 |
| Limps Smith | Head | — | 45 | ~1895 |
| Charlie Smith | Son | — | 17 | ~1923 |
| John Smith | Son | — | 15 | ~1925 |
| Nathaniel Smith | Son | — | 7 | ~1933 |
| Mamie Smith | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Chambers, Alabama
Daughter, age 2
Chambers, Alabama · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Chambers, Alabama
Daughter, age 11
Chambers, Alabama · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Chambers-County, Alabama
Daughter, age 21
Chambers-County, Alabama · implied b. ~1919 — 8 household members
| Surname | Smith |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (County) | Chambers |
| Hours Worked | 30 |
| Highest Grade | No 7 |
| 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 Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jim Smith (~0.92 confidence) and father Limps Smith (~0.92 confidence) and father Lem Smith (~0.92 confidence) and mother Mamie Smith (~0.92 confidence) and mother Minnie Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jim Smith
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Limps Smith
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Lem Smith
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Mamie Smith
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Minnie Smith
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Smith
Daughter · 1940 · age 21 · b. ~1919 · Alabama
★ You are viewing this record
Sibling
Nathaniel Smith
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Smith
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Burdene Smith
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillie Smith
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlie Smith
Sibling · 1940 · age 17
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 — Chambers-County, Alabama
Open full size
1940 US Federal Census — Chambers-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00010-00078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eddie Bird | 2 | Son | — | Alabama |
| 2 | Grady Jones | 25 | Boarder | — | Alabama |
| 3 | Matt Delaney | 44 | Head | Farmer | Alabama |
| 4 | Lucy Delaney | 35 | Wife | — | Alabama |
| 5 | Laura Delaney | 14 | Daughter | — | Alabama |
| 6 | Bessie Delaney | 11 | Daughter | — | Alabama |
| 7 | Willie Delaney | 7 | Son | — | Alabama |
| 8 | Ruby Delaney | 2 | Daughter | — | Alabama |
| 9 | Hubert Delaney | 0 | Son | — | Alabama |
| 10 | Louis Bates | 48 | Head | Farmer | Georgia |
| 11 | Lizzie Bates | 37 | Wife | — | Alabama |
| 12 | Willie Bates | 14 | Daughter | — | Alabama |
| 13 | Lorene Bates | 12 | Daughter | — | Alabama |
| 14 | Maudell Bates | 10 | Daughter | — | Alabama |
| 15 | John Bates | 4 | Son | — | Alabama |
| 16 | Limps Smith | 45 | Head | Farmer | Alabama |
| 17 | Mamie Smith | 43 | Wife | — | Alabama |
| 18 | Mary Lou Smith THIS PERSON | 21 | Daughter | — | Alabama |
| 19 | Lillie Lee Smith | 18 | Daughter | — | Alabama |
| 20 | Charlie Smith | 17 | Son | — | Alabama |
| 21 | John Wesley Smith | 15 | Son | — | Alabama |
| 22 | Nathaniel Smith | 7 | Son | — | Alabama |
| 23 | Burdene Smith | 2 | Daughter | — | Alabama |
| 24 | Puffer B. Taylor | 49 | Head | Farmer | Georgia |
| 25 | Elsie Taylor | 41 | Wife | — | Alabama |
| 26 | Irene Taylor | 18 | Daughter | — | Alabama |
| 27 | Ruth Taylor | 15 | Daughter | — | Alabama |
| 28 | Clifford Taylor | 14 | Son | — | Alabama |
| 29 | Viola Taylor | 13 | Daughter | — | Alabama |
| 30 | Jim Taylor | 12 | Son | — | Alabama |
| 31 | Gladys Taylor | 10 | Daughter | — | Alabama |
| 32 | Henry Taylor | 8 | Son | — | Alabama |
| 33 | E. W. Taylor | 6 | Son | — | Alabama |
| 34 | Willie H. Neal | 40 | Head | Farmer | Alabama |
| 35 | Mary Neal | 38 | Wife | — | Alabama |
| 36 | Olin Neal | 14 | Son | — | Alabama |
| 37 | Nellie Neal | 12 | Daughter | — | Alabama |
| 38 | Earl Neal | 10 | Son | — | Alabama |
| 39 | Willie Mae Neal | 6 | Daughter | — | Alabama |
| 40 | Father John | None | M | Farm | — |
Pedigree Summary
Mary + 5 siblings
Gen 1 · 5 parents
~0.92
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)