CJ
Curtis Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Curtis Johnson across the 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 11-person household.
Age 21
b. ~1919
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Johnson |
| Given Name | Curtis H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Steel Plant |
| Industry | PW |
| Class of Worker | 444 |
| Highest Grade | Hs 2 |
| 1935 Residence | 40 |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Steel Plant |
| Township / Ward | Sherman Heights |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Curtis | Age | Birth yr |
|---|---|---|---|---|
| Margaret Johnson | Other | — | 1 | ~1939 |
| John Johnson | Son | — | 21 | ~1919 |
| Willie Johnson | Daughter | — | 19 | ~1921 |
| Eddie Johnson | Son | — | 26 | ~1914 |
| Sarah Johnson | Daughter | — | 27 | ~1913 |
| Curtis Johnson | Son | — | 21 | ~1919 |
| Marvin Johnson | Other | — | ~1940 | |
| Martha Johnson | Other | — | 20 | ~1920 |
| Mary Johnson | Spouse | — | 46 | ~1894 |
| Christine Johnson | Daughter | — | 30 | ~1910 |
| John Johnson | Head | — | 58 | ~1882 |
Census Appearances
1930
Jefferson, Alabama
Son, age 11
Jefferson, Alabama · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Curtis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | none |
| 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 — 11 household members
| Surname | Johnson |
| Given Name | Curtis H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (County) | Jefferson |
| Occupation | Steel Plant |
| Industry | PW |
| Class of Worker | 444 |
| Highest Grade | Hs 2 |
| 1935 Residence | 40 |
| 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 Curtis Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Curtis Johnson
Son · 1940 · age 21 · b. ~1919 · Alabama
★ You are viewing this record
Sibling
Christine Johnson
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Johnson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Johnson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Johnson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eddie Johnson
Sibling · 1940 · age 26
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-t0627-00046-00541)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Damon Mcdaniel | 3 | Son | — | Alabama |
| 42 | Wesley Jr Mcdaniel | 1 | Son | — | Alabama |
| 43 | Minnie Lewis | 44 | Mother | Own Home | Alabama |
| 44 | George Johnson | 46 | Head | Coal Mine | Alabama |
| 45 | Birdie (X) Johnson | 46 | Wife | — | Alabama |
| 46 | Emma (X) Smith | 56 | Head | Own Home | Alabama |
| 47 | Will Buchanan | 25 | Boarder | Blast Furnace | Alabama |
| 48 | Mamie Buchanan | 23 | Daughter | — | Alabama |
| 49 | John H Johnson | 58 | Head | Lime Plant | Alabama |
| 50 | Mary J Johnson | 46 | Wife | — | Alabama |
| 51 | Sarah E Johnson | 27 | Daughter | — | Alabama |
| 52 | Curtis H Johnson THIS PERSON | 21 | Son | Steel Plant | Alabama |
| 53 | Willie C Johnson | 19 | Daughter | — | Alabama |
| 54 | Christine Johnson | 30 | Daughter | — | Alabama |
| 55 | John P (X) Johnson | 21 | Son | Steel Plant | Alabama |
| 56 | Eddie Johnson | 26 | Son | W.P.A. Projects | Alabama |
| 57 | Martha Johnson | 20 | Daughter-in-law | — | Alabama |
| 58 | Margaret Johnson | 1 | Granddaughter | — | Alabama |
| 59 | Marvin D Johnson | 0 | Grandson | — | Alabama |
| 60 | Robert Mcdaniel | 41 | Head | Furniture | Alabama |
| 61 | Nancy Mcdaniel | 31 | Wife | — | Alabama |
| 62 | Robert Jr Mcdaniel | 8 | Son | — | Alabama |
| 63 | Nancy (X) Mcdaniel | 26 | Daughter | Own Home | Alabama |
| 64 | Minnie Mcdaniel | 19 | Daughter | — | Alabama |
| 65 | Valera Mcdaniel | 9 | Daughter | — | Alabama |
| 66 | Harold Mcdaniel | 3 | Son | — | Alabama |
| 67 | Charlie (X) Wallace | 53 | Head | Sanitary Project | Alabama |
| 68 | Viola Wallace | 42 | Wife | — | Alabama |
| 69 | Charlie Wallace | 12 | Son | — | Alabama |
| 70 | Dorothy M Wallace | 10 | Daughter | — | Alabama |
| 71 | Eddie Lee | 62 | Head | — | Alabama |
| 72 | Lucy Lee | 55 | Wife | — | Alabama |
| 73 | Evelyn L Lee | 25 | Son | Blast Furnace | Alabama |
| 74 | Lucille Bennett | 14 | Daughter | — | Alabama |
| 75 | Emma Pullum | 34 | Daughter | Public School | Alabama |
| 76 | Eddie (X) Pullum | 20 | Grandson | — | Alabama |
| 77 | Doc Chambers | 36 | Head | Coal Mine | Alabama |
| 78 | Willie M Chambers | 29 | Wife | Private Home | Alabama |
| 79 | Bettie M Chambers | 12 | Daughter | — | Alabama |
| 80 | Millie B (X) Chambers | 12 | Daughter | — | Alabama |
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)