LJ
Leon Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Aiken-County, South Carolina
Our Model Tree links this Leon Johnson across the 1930 and 1940 US Censuses in Aiken-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Aiken-County, South Carolina |
| Surname | Johnson |
| Given Name | Leon Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Rocky Spring |
| 1935 Residence (County) | Aiken |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Rocky Spring |
| Est. Birth Year | ~1928 |
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 Leon | Age | Birth yr |
|---|---|---|---|---|
| Mildred Johnson | Daughter | — | 5 | ~1935 |
| Catherine Johnson | Daughter | — | 6 | ~1934 |
| James Johnson | Son | — | 11 | ~1929 |
| Leon Johnson | Son | — | 12 | ~1928 |
| Louise Johnson | Daughter | — | 9 | ~1931 |
| Leon Johnson | Head | — | 31 | ~1909 |
| Jessie Johnson | Spouse | — | 30 | ~1910 |
| Benjamin Johnson | Son | — | 2 | ~1938 |
Census Appearances
1930
Aiken, South …
Son, age 2
Aiken, South Carolina · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Leon Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Aiken-County, South …
Son, age 12
Aiken-County, South Carolina · implied b. ~1928 — 8 household members
| Surname | Johnson |
| Given Name | Leon Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Rocky Spring |
| 1935 Residence (County) | Aiken |
| Highest Grade | No 4 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Leon Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leon Johnson
Son · 1940 · age 12 · b. ~1928 · South Carolina
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Sibling
Louise Johnson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Johnson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Johnson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Johnson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Benjamin Johnson
Sibling · 1940 · age 2
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 — Aiken-County, South Carolina
Open full size
1940 US Federal Census — Aiken-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03783-00294)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Letha Tyler | 2 | Daughter | — | South Carolina |
| 42 | Ezell Tyler | 0 | Son | — | South Carolina |
| 43 | Sarah Robertson | 67 | Sister in law | — | South Carolina |
| 44 | Tom M. Aman | 49 | Head | Farmer | South Carolina |
| 45 | Bessie Aman | 37 | Wife | — | South Carolina |
| 46 | Susie Aman | 13 | Daughter | — | South Carolina |
| 47 | Jean Aman | 3 | Daughter | — | South Carolina |
| 48 | Ernest Tyler | 21 | Head | Farmer | South Carolina |
| 49 | Marie Tyler | 14 | Wife | — | South Carolina |
| 50 | Ernest Jr. Tyler | 1 | Son | — | South Carolina |
| 51 | Bernice S. Tyler | 1 | Daughter | — | South Carolina |
| 52 | John Stroman | 21 | Head | Farmer | South Carolina |
| 53 | Mary Stroman | 20 | Wife | — | South Carolina |
| 54 | Sennie Stroman | 3 | Daughter | — | South Carolina |
| 55 | John Jr. Stroman | 2 | Son | — | South Carolina |
| 56 | Connellia Stroman | 43 | Mother | — | South Carolina |
| 57 | Tom Stroman | 18 | Brother | Farm Laborer | South Carolina |
| 58 | Alice Stroman | 13 | Sister | — | South Carolina |
| 59 | Linda Stroman | 11 | Sister | — | South Carolina |
| 60 | Horace Stroman | 11 | Brother | — | South Carolina |
| 61 | Clarence Stroman | 10 | Brother | — | South Carolina |
| 62 | Perstine Stroman | 6 | Brother | — | South Carolina |
| 63 | Lula Johnson | 64 | Head | — | South Carolina |
| 64 | David Miles | 18 | Son | Farmer | South Carolina |
| 65 | Louise Knight | 15 | Granddaughter | — | South Carolina |
| 66 | Henrietta Miles | 14 | Granddaughter | — | South Carolina |
| 67 | Catharine Knight | 13 | Granddaughter | — | South Carolina |
| 68 | Wallace Miles | 25 | Son | Farm Laborer | South Carolina |
| 69 | Gladys Miles | 24 | Daughter in law | Farm Laborer | South Carolina |
| 70 | Leon Johnson | 31 | Head | Farmer | South Carolina |
| 71 | Jessie M. Johnson | 30 | Wife | — | South Carolina |
| 72 | Leon Jr. Johnson THIS PERSON | 12 | Son | — | South Carolina |
| 73 | James H. Johnson | 11 | Son | — | South Carolina |
| 74 | Louise Johnson | 9 | Daughter | — | South Carolina |
| 75 | Catherine Johnson | 6 | Daughter | — | South Carolina |
| 76 | Mildred Johnson | 5 | Daughter | — | South Carolina |
| 77 | Benjamin Johnson | 2 | Son | — | South Carolina |
| 78 | Willard Courtney | 38 | Head | Laborer | South Carolina |
| 79 | Annie Courtney | 41 | Wife | — | South Carolina |
| 80 | Eunice Courtney | 16 | Daughter | — | South Carolina |
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)