IS
Ida Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Ida Smith across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Female
Spouse
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Smith |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Prec. 17 |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Hours Worked | 5 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Prec 17 |
| Est. Birth Year | ~1897 |
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 Ida | Age | Birth yr |
|---|---|---|---|---|
| Will Smith | Head | — | 43 | ~1897 |
| Shine Johnson | Other | — | 75 | ~1865 |
| Willie Smith | Son | — | 11 | ~1929 |
| Ida Smith | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Jefferson, Alabama
Spouse, age 21
Jefferson, Alabama · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Spouse, age 32
Jefferson, Alabama · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 17 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Spouse, age 43
Jefferson-County, Alabama · implied b. ~1897 — 4 household members
| Surname | Smith |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Prec. 17 |
| 1935 Residence (County) | Jefferson |
| Hours Worked | 5 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| 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 Ida Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ida Smith
Spouse · 1940 · age 43 · b. ~1897 · Alabama
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
27 people indexed on this census page (nara:1940:m-t0627-00044-00381)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Thomas | 14 | Son | — | Alabama |
| 2 | Preston Thomas | 11 | Son | — | Alabama |
| 3 | Willie Lee Thomas | 5 | Son | — | Alabama |
| 4 | Joel Thomas | 1 | Son | — | Alabama |
| 5 | David Lee Allen | 38 | Head | — | Alabama |
| 6 | Eaula Mae Allen | 31 | Wife | — | Alabama |
| 7 | Eugene Allen | 13 | Son | — | Alabama |
| 8 | Ward Lee Allen | 11 | Son | — | Alabama |
| 9 | Willie Bell Allen | 9 | Daughter | — | Alabama |
| 10 | Henry Allen | 6 | Son | — | Alabama |
| 11 | Joseph Allen | 1 | Son | — | Alabama |
| 12 | Will Smith | 43 | Head | Fireman | Alabama |
| 13 | Ida Smith THIS PERSON | 43 | Wife | — | Alabama |
| 14 | Willie Smith | 11 | Son | — | Alabama |
| 15 | Shine Johnson | 75 | Father-in-law | Miner | Alabama |
| 16 | George Sludge | 36 | Head | Miner | Alabama |
| 17 | Mary Sludge | 34 | Wife | — | Alabama |
| 18 | Grady Sludge | 13 | Daughter | — | Alabama |
| 19 | Lonnie Earl Sludge | 12 | Son | — | Alabama |
| 20 | Rowena Sludge | 1 | Daughter | — | Alabama |
| 21 | Huston Young | 43 | Head | Fire Man | Alabama |
| 22 | Rowena Young | 48 | Wife | Fire Man | Alabama |
| 23 | Fred H. Williams | 41 | Head | Miner | Alabama |
| 24 | Lottie Williams | 49 | Wife | — | Alabama |
| 25 | Fred Jr. Williams | 17 | Son | — | Alabama |
| 26 | George Cooke | 67 | Head | — | Georgia |
| 27 | Hannah Cooke | 64 | Wife | — | Georgia |
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)