RJ
Ralph Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Illinois
Our Model Tree links this Ralph Johnson across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Illinois (XGBoost, ~Confirmed), with identified parents Walker & Walker — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Illinois |
| Surname | Johnson |
| Given Name | Ralph H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Spring Garden |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Janitor |
| Industry | N. Y. A. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 228 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Janitor |
| Township / Ward | Spring Garden |
| Est. Birth Year | ~1917 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Walker Johnson | Head | — | 51 | ~1889 |
| Ralph Johnson | Son | — | 23 | ~1917 |
| Kern Johnson | Son | — | 17 | ~1923 |
| Harry Johnson | Son | — | 24 | ~1916 |
| Lula Johnson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Jefferson, Illinois
Son, age 2
Jefferson, Illinois · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ralph H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Jefferson, Illinois
Son, age 13
Jefferson, Illinois · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ralph H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Illinois
Son, age 23
Jefferson-County, Illinois · implied b. ~1917 — 5 household members
| Surname | Johnson |
| Given Name | Ralph H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Spring Garden |
| 1935 Residence (County) | Jefferson |
| Occupation | Janitor |
| Industry | N. Y. A. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 228 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Ralph Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Walker Johnson (~0.92 confidence) and father Walker Johnson (~0.92 confidence) and father Walter Johnson (~0.92 confidence) and mother Lula Johnson (~0.92 confidence) and mother Lula Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Walker Johnson
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Walker Johnson
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Walter Johnson
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Lula Johnson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Lula Johnson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Johnson
Son · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Harry Johnson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kern Johnson
Sibling · 1940 · age 17
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, Illinois
Open full size
1940 US Federal Census — Jefferson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00816-00921)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Son Neal | None | M | — | — |
| 42 | Paul Bernard | 25 | Head | Road Work | Illinois |
| 43 | Erma Lee Bernard | 25 | Wife | — | Illinois |
| 44 | Paul Lee Bernard | 3 | Son | — | Illinois |
| 45 | Dean Baker | 35 | Head | Farmer | Illinois |
| 46 | Ora Baker | 35 | Wife | — | Illinois |
| 47 | Mervin Baker | 15 | Son | — | Illinois |
| 48 | W. H. Wallace | 77 | Head | Farmer | Illinois |
| 49 | Eugenia C. Wallace | 79 | Wife | — | Illinois |
| 50 | J. C. Tittle | 61 | Head | Farmer | Illinois |
| 51 | Mattie Tittle | 60 | Wife | — | Illinois |
| 52 | Howard Tittle | 23 | Son | Farm Laborer | Illinois |
| 53 | Rayborn Tittle | 21 | Son | Farm Laborer | Illinois |
| 54 | Eugene Tittle | 19 | Son | Farm Laborer | Illinois |
| 55 | George Pierce | 53 | Head | Farmer | Illinois |
| 56 | Orphia Pierce | 48 | Wife | — | Illinois |
| 57 | W. R. Hamilton | 28 | Son in law | — | Illinois |
| 58 | Herbert Pierce | 30 | Head | Cutting Leather | Illinois |
| 59 | Pansy Pierce | 30 | Wife | — | Illinois |
| 60 | Junior Pierce | 9 | Son | — | Illinois |
| 61 | Joyce C. Pierce | 7 | Daughter | — | Illinois |
| 62 | Jerry Pierce | 5 | Son | — | Illinois |
| 63 | Jo Ann Pierce | 2 | Daughter | — | Illinois |
| 64 | Cora Goddard | 61 | Head | Farmer | Illinois |
| 65 | Walker Johnson | 51 | Head | Farmer | Illinois |
| 66 | Lula M. Johnson | 50 | Wife | — | Illinois |
| 67 | Harry P. Johnson | 24 | Son | Laborer | Illinois |
| 68 | Ralph H. Johnson THIS PERSON | 23 | Son | Janitor | Illinois |
| 69 | Kern R. Johnson | 17 | Son | — | Illinois |
| 70 | Frank Wangler | 58 | Head | Road Work | Illinois |
| 71 | Iona Wangler | 56 | Wife | — | Illinois |
| 72 | Relis Wangler | 22 | Son | Laborer | Illinois |
| 73 | Lucile Wangler | 17 | Daughter | — | Illinois |
| 74 | Earl Wangler | 15 | Son | — | Illinois |
| 75 | Russell L. Wangler | 10 | Son | — | Illinois |
| 76 | Daughter Marion | None | F | Private Home | — |
| 77 | Billie W. Phillips | 4 | Grandson | — | Illinois |
| 78 | Herbert Puckett | 51 | Head | Laborer | Illinois |
| 79 | Nell Puckett | 52 | Wife | Laborer | Illinois |
| 80 | Marie Ramsey | 19 | Daughter | — | Illinois |
Pedigree Summary
Ralph + 2 siblings
Gen 1 · 5 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)