RJ
Ralph Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Ralph Johnson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents Oscar & Oscar — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Johnson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | City Book keeper |
| Industry | City Treasurer |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 982 |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | City Book Keeper |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Oscar Johnson | Head | — | 49 | ~1891 |
| Ralph Johnson | Son | — | 22 | ~1918 |
| Jennie Johnson | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Winnebago, Illinois
Son, age 2
Winnebago, Illinois · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Son, age 12
Winnebago, Illinois · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ralph E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Son, age 22
Winnebago-County, Illinois · implied b. ~1918 — 3 household members
| Surname | Johnson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Occupation | City Book keeper |
| Industry | City Treasurer |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 982 |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| 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 Oscar Johnson (~0.92 confidence) and father Oscar Johnson (~0.92 confidence) and mother Jennie Johnson (~0.92 confidence) and mother Jennie Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Johnson
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Oscar Johnson
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Jennie Johnson
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Jennie Johnson
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Johnson
Son · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00915-00089)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Fagerstrom | 47 | Head | Accountant | Nebraska |
| 2 | Florence Fagerstrom | 43 | Wife | — | Illinois |
| 3 | Carl G. Carlson | 47 | Head | Foreman | Illinois |
| 4 | Ruth J. Carlson | 42 | Wife | — | Illinois |
| 5 | Oscar E. Johnson | 49 | Head | Truck Driver | Sweden |
| 6 | Jennie Johnson | 49 | Wife | — | Sweden |
| 7 | Ralph Johnson THIS PERSON | 22 | Son | City Book Keeper | Illinois |
| 8 | Carl I. Lonn | 51 | Head | Assembler | Sweden |
| 9 | Hannah Lonn | 51 | Wife | — | Sweden |
| 10 | Ruth Lonn | 21 | Daughter | Office Work | Illinois |
| 11 | Raymond Lonn | 16 | Son | — | Illinois |
| 13 | C. Henning Johnson | 46 | Head | Salesman | Illinois |
| 14 | U. Unice Johnson | 35 | Wife | — | Illinois |
| 15 | Gordon T. Johnson | 5 | Son | — | Illinois |
| 16 | Randall Johnson | 0 | Son | — | Illinois |
| 17 | Guy Woodcock | 50 | Head | Electrician | Illinois |
| 18 | Ruby Woodcock | 45 | Wife | — | Illinois |
| 19 | Lester Hatch | 34 | Head | Store Keeper | Wisconsin |
| 20 | Victoria Hatch | 32 | Wife | — | Illinois |
| 21 | Alex Stonkus | 66 | Father-in-law | — | Lithuania |
| 22 | Don Roy Mcmanus | 45 | Head | Management | Illinois |
| 23 | Mabelle Mcmanus | 35 | Wife | — | Illinois |
| 24 | John Paul Mcmanus | 15 | Son | — | Illinois |
| 25 | Malcolm E. Mcmanus | 13 | Son | — | Illinois |
| 26 | Patricia Mcmanus | 10 | Daughter | — | Illinois |
| 27 | Theodore De Lang | 35 | Head | Doctor | Austria |
| 28 | Mildred De Lang | 26 | Wife | — | Illinois |
| 29 | Mary Joan Lang | 2 | Daughter | — | Illinois |
| 30 | G. H. Bowman | 40 | Head | Deputy Clerk | Illinois |
| 31 | Luella Bowman | 40 | Wife | — | Minnesota |
| 32 | Marilyn Bowman | 14 | Daughter | — | Illinois |
| 33 | Egel E. Geary | 52 | Head | Adjuster | Illinois |
| 34 | Florence Geary | 52 | Wife | — | Illinois |
| 35 | Paul G. Geary | 18 | Son | — | Illinois |
| 36 | Carl Werner Anderson | 32 | Head | Superintendent | Iowa |
| 37 | Pauline Anderson | 31 | Wife | — | Pennsylvania |
| 38 | Norman Anderson | 3 | Son | — | Illinois |
| 39 | John A. Anderson | 1 | Son | — | Illinois |
| 40 | Emms Cluck | 62 | Head | — | Illinois |
Pedigree Summary
Ralph
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)