RS
Robert Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Robert Smith across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents Henry & Henry — first a son (b.~1919), then head of a 13-person household.
Age 21
b. ~1919
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Smith |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Election Precinct 57 |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | miner |
| Industry | coal mines |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 800 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Miner |
| Township / Ward | Election Precinct 57 |
| 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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Marie Smith | Daughter | — | 12 | ~1928 |
| Vinnie Smith | Daughter | — | 22 | ~1918 |
| Carrie Smith | Daughter | — | 8 | ~1932 |
| Lillian Smith | Daughter | — | 19 | ~1921 |
| Dora Smith | Daughter | — | 14 | ~1926 |
| Henry Smith | Head | — | 49 | ~1891 |
| Charlie Simms | Other | — | 4 | ~1936 |
| Robert Simms | Other | — | 2 | ~1938 |
| Richard Smith | Son | — | 10 | ~1930 |
| Robert Smith | Son | — | 21 | ~1919 |
| Thomas Smith | Son | — | 7 | ~1933 |
| Henry Smith | Son | — | 15 | ~1925 |
| Alberta Smith | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Jefferson, Alabama
Son, age 1
Jefferson, Alabama · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Son, age 12
Jefferson, Alabama · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| 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
Jefferson-County, Alabama
Son, age 21
Jefferson-County, Alabama · implied b. ~1919 — 13 household members
| Surname | Smith |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Election Precinct 57 |
| 1935 Residence (County) | Jefferson |
| Occupation | miner |
| Industry | coal mines |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 800 |
| Highest Grade | No 7 |
| 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 Robert Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henry Smith (~0.92 confidence) and father Henry Smith (~0.92 confidence) and father James Smith (~0.92 confidence) and mother Lula Smith (~0.92 confidence) and mother Roberta Smith (~0.92 confidence) and mother Alberta Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henry Smith
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Henry Smith
b. ~1880
Source father
● Household
· direct · ~0.92
Father
James Smith
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Lula Smith
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Roberta Smith
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Alberta Smith
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Smith
Son · 1940 · age 21 · b. ~1919 · Alabama
★ You are viewing this record
Sibling
Richard Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Smith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dora Smith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carrie Smith
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Smith
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Smith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Smith
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vinnie Smith
Sibling · 1940 · age 22
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 — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00047-00742)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillie Mae Jones | 32 | Wife | — | Alabama |
| 2 | Robert Jones | 16 | Son | — | Alabama |
| 3 | William Jones | 15 | Son | — | Alabama |
| 4 | Noble Roberson | 42 | Head | Miner | Alabama |
| 5 | Ella Mae Roberson | 29 | Wife | — | Georgia |
| 6 | Philip Jones | 33 | Head | New Worker | Alabama |
| 7 | Fannie Mae Jones | 20 | Wife | — | Alabama |
| 8 | Jessie Jones | 3 | Son | — | Alabama |
| 9 | Bessie Ray Jones | 1 | Daughter | — | Alabama |
| 10 | Ben Culbert | 47 | Head | Miner | Alabama |
| 11 | Helen Culbert | 44 | Wife | — | Alabama |
| 12 | Thomas Jr. Pinkleton | 26 | Son-in-law | Helper | Alabama |
| 13 | Mattie Bell Pinkleton | 24 | Daughter | — | Alabama |
| 14 | Harold R. Pinkleton | 3 | Grandson | — | Alabama |
| 15 | Eddie Jones | 30 | Boarder | New Worker | Alabama |
| 16 | Annie Rose Jones | 21 | Boarder | — | Alabama |
| 17 | Mattie Clara Webster | 40 | Head | — | Alabama |
| 18 | James Taylor | 22 | Head | Miner | Alabama |
| 19 | Lucy Mae Taylor | 23 | Wife | — | Alabama |
| 20 | Lillie Taylor | 53 | Mother | — | Alabama |
| 21 | John Walker | 42 | Head | Miner | Georgia |
| 22 | Bessie Walker | 37 | Wife | — | S. Carolina |
| 23 | Adam Miller | 21 | Lodger | New Worker | Georgia |
| 24 | Henrietta Miller | 20 | Lodger | — | Georgia |
| 25 | Henry Smith | 49 | Head | Miner | Alabama |
| 26 | Alberta Smith | 47 | Wife | — | Alabama |
| 27 | Vinnie Smith | 22 | Daughter | — | Alabama |
| 28 | Robert Smith THIS PERSON | 21 | Son | Miner | Alabama |
| 29 | Lillian Smith | 19 | Daughter | — | Alabama |
| 30 | Henry Jr. Smith | 15 | Son | — | Alabama |
| 31 | Dora Lee Smith | 14 | Daughter | — | Alabama |
| 32 | Marie Smith | 12 | Daughter | — | Alabama |
| 33 | Richard Smith | 10 | Son | — | Alabama |
| 34 | Carrie Mae Smith | 8 | Daughter | — | Alabama |
| 35 | Thomas J. Smith | 7 | Son | — | Alabama |
| 36 | Charlie Simms | 4 | Grandson | — | Alabama |
| 37 | Robert Simms | 2 | Grandson | — | Alabama |
| 38 | Mansfield Smith | 36 | Head | Miner | Alabama |
| 39 | Marie A. Smith | 27 | Wife | — | Alabama |
| 40 | Gladys Smith | 17 | Daughter | — | Alabama |
Related Census Records
Pedigree Summary
Robert + 8 siblings
Gen 1 · 6 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)