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Robert King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Robert King across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | King |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Prichard |
| 1935 Residence (County) | Mobile |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Unincorporated Place Tarrant |
| Est. Birth Year | ~1920 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Albertha King | Daughter | — | 6 | ~1934 |
| Willie King | Daughter | — | 12 | ~1928 |
| Rosie King | Daughter | — | 9 | ~1931 |
| Ruth King | Daughter | — | 4 | ~1936 |
| John King | Head | — | 53 | ~1887 |
| John King | Son | — | 15 | ~1925 |
| Robert King | Son | — | 20 | ~1920 |
| Mary King | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Jefferson, Alabama
Son, age 2
Jefferson, Alabama · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Son, age 11
Jefferson, Alabama · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| 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
Jefferson-County, Alabama
Son, age 20
Jefferson-County, Alabama · implied b. ~1920 — 8 household members
| Surname | King |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Prichard |
| 1935 Residence (County) | Mobile |
| Highest Grade | H 2 |
| 1935 Residence | Alabama |
| 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 King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John King (~0.92 confidence) and father John King (~0.92 confidence) and mother Mary King (~0.92 confidence) and mother Mary King (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John King
b. ~1885
Source father
● Household
· direct · ~0.92
Father
John King
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Mary King
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mary King
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert King
Son · 1940 · age 20 · b. ~1920 · Alabama
★ You are viewing this record
Sibling
Albertha King
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosie King
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie King
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John King
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth King
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 — 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-t0627-00043-00368)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Adie B Mcdowell | 39 | Wife | Housewife | Alabama |
| 2 | Mary L Mcdowell | 22 | Daughter | Maid | Alabama |
| 3 | Annie B Mcdowell | 18 | Daughter | Maid | Alabama |
| 4 | Walker Jr Mcdowell | 14 | Son | — | Alabama |
| 5 | Nell Mae Mcdowell | 12 | Daughter | — | Alabama |
| 6 | Henrietta Mcdowell | 8 | Daughter | — | Alabama |
| 7 | Bell Barbara Mcdowell | 4 | Daughter | — | Alabama |
| 8 | Council Adams | 36 | Head | Drill Runner | Alabama |
| 9 | Alamae Adams | 31 | Wife | Housewife | Alabama |
| 10 | Clarence Adams | 14 | Son | — | Alabama |
| 11 | Nathaniel Adams | 12 | Son | — | Alabama |
| 12 | Roosevelt Adams | 11 | Son | — | Alabama |
| 13 | Linnie M Adams | 9 | Son | — | Alabama |
| 14 | James Adams | 5 | Son | — | Alabama |
| 15 | Mable Adams | 2 | Daughter | — | Alabama |
| 16 | Earnestine Adams | 1 | Daughter | — | Alabama |
| 17 | Charley Edward | 37 | Head | Track Repairer | Alabama |
| 18 | Viola Edward | 37 | Wife | Housewife | Alabama |
| 19 | Charley Jr Edward | 16 | Son | — | Alabama |
| 20 | Ida Mae Edward | 15 | Daughter | — | Alabama |
| 21 | Madison Burton | 31 | Head | Shop Laborer | Alabama |
| 22 | Henrietta Burton | 31 | Wife | Housewife | Alabama |
| 23 | Ruby L Burton | 10 | Daughter | — | Alabama |
| 24 | Siegfried Griffin | 50 | Head | Track Repairer | Alabama |
| 25 | Virgie Griffin | 40 | Wife | Housewife | Alabama |
| 26 | John King | 53 | Head | Track Repairer | Alabama |
| 27 | Mary King | 44 | Wife | Housewife | Alabama |
| 28 | Robert L King THIS PERSON | 20 | Son | — | Alabama |
| 29 | John Jr King | 15 | Son | — | Alabama |
| 30 | Willie M King | 12 | Daughter | — | Alabama |
| 31 | Rosie M King | 9 | Daughter | — | Alabama |
| 32 | Albertha King | 6 | Daughter | — | Alabama |
| 33 | Ruth B King | 4 | Daughter | — | Alabama |
| 34 | Moses Moon | 61 | Head | Track Laborer | Georgia |
| 35 | Ellen Moon | 47 | Wife | Housewife | Georgia |
| 36 | Mason Moon | 22 | Son | — | Georgia |
| 37 | Johnnie L Moon | 13 | Son | — | Alabama |
| 38 | James Hall | 36 | Head | Track Laborer | Alabama |
| 39 | Mattie Hall | 30 | Wife | Housewife | Alabama |
| 40 | Willie J Hall | 10 | Son | — | Alabama |
Pedigree Summary
Robert + 5 siblings
Gen 1 · 4 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)