KJ
Kenneth Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dekalb-County, Illinois
Our Model Tree links this Kenneth Johnson across the 1920, 1930 and 1940 US Censuses in Dekalb-County, Illinois (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dekalb-County, Illinois |
| Surname | Johnson |
| Given Name | Kenneth A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Pierce R |
| 1935 Residence (County) | DeKalb |
| Additional Details | |
| Occupation | Credit Work |
| Industry | Ag. Cas. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Credit Work |
| Township / Ward | Cortland Township |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Kenneth | Age | Birth yr |
|---|---|---|---|---|
| Eleanore Johnson | Daughter | — | 10 | ~1930 |
| Elaine Johnson | Daughter | — | 27 | ~1913 |
| Albert Johnson | Head | — | 61 | ~1879 |
| Leo Olson | Other | — | 28 | ~1912 |
| Kenneth Johnson | Son | — | 23 | ~1917 |
| Virginia Johnson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Dekalb, Illinois
Son, age 3
Dekalb, Illinois · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Dekalb, Illinois
Son, age 13
Dekalb, Illinois · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Kenneth |
| 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
Dekalb-County, Illinois
Son, age 23
Dekalb-County, Illinois · implied b. ~1917 — 6 household members
| Surname | Johnson |
| Given Name | Kenneth A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Pierce R |
| 1935 Residence (County) | DeKalb |
| Occupation | Credit Work |
| Industry | Ag. Cas. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| 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 Kenneth Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Johnson (~0.92 confidence) and father Albert Johnson (~0.92 confidence) and mother Virginia Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Johnson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Albert Johnson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Virginia Johnson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Kenneth Johnson
Son · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Elaine Johnson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanore Johnson
Sibling · 1940 · age 10
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 — Dekalb-County, Illinois
Open full size
1940 US Federal Census — Dekalb-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00793-00204)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carl W Gunderson | 45 | Head | Farm Operator | Sweden |
| 42 | Julia Gunderson | 55 | Wife | House Wife | Denmark |
| 43 | Vesta M Gunderson | 15 | Daughter | Student | Illinois |
| 44 | Alice Mae Gunderson | 14 | Daughter | — | Illinois |
| 45 | Carl W Jr Gunderson | 12 | Son | — | Illinois |
| 46 | Wilda A Gunderson | 11 | Daughter | — | Illinois |
| 47 | John Meder | 23 | Hired Man | Hired Man | Illinois |
| 48 | Clarence Williams | 30 | Head | Milk Route | Illinois |
| 49 | Mable M Williams | 23 | Wife | House Wife | Illinois |
| 50 | Ronald D Williams | 4 | Son | — | Illinois |
| 51 | Albert O Johnson | 61 | Head | Farm Operator | Illinois |
| 52 | Virginia O Johnson | 50 | Wife | House Wife | Illinois |
| 53 | Elaine V Johnson | 27 | Daughter | Teacher | Illinois |
| 54 | Kenneth A Johnson THIS PERSON | 23 | Son | Credit Work | Illinois |
| 55 | Eleanore A Johnson | 10 | Daughter | — | Illinois |
| 56 | Leo B Olson | 28 | Hired Man | Advertising Manager | Illinois |
| 57 | Joseph A Butler | 37 | Head | Farm Operator | Illinois |
| 58 | Harold M Alver | 30 | Head | Farm Operator | South Dakota |
| 59 | Lucile M Alver | 30 | Wife | House Wife | Illinois |
| 60 | Judith Elaine Alver | 0 | Daughter | — | Illinois |
| 61 | Richard W Graham | 23 | Head | Farm Helper | Kansas |
| 62 | Kathleen Ada Graham | 20 | Wife | House Wife | Illinois |
| 63 | Alvin Johnson | 41 | Helper | Farm Operator | Illinois |
| 64 | John Misendorf | 62 | Head | Farm Operator | Germany |
| 65 | Grace Misendorf | 52 | Wife | House Wife | Germany |
| 66 | Agnes E Misendorf | 22 | Daughter | Waitress | Illinois |
| 67 | John R Jr Misendorf | 15 | Son | Student | Illinois |
| 68 | Edward J Misendorf | 13 | Son | — | Illinois |
| 69 | Edna Mae Misendorf | 10 | Daughter | — | Illinois |
| 70 | Joseph Barcic | 54 | Head | Farm Operator | Yugoslavia |
| 71 | Lillian Barcic | 43 | Wife | House Wife | Yugoslavia |
| 72 | Josephine Barcic | 18 | Niece | House Work | Yugoslavia |
| 73 | Joseph Barcic | 15 | Nephew | — | Yugoslavia |
| 74 | Anthony S Signorella | 12 | Step-Son | — | Illinois |
| 75 | Ely Plais | 56 | Hired Man | Farm Hand | Yugoslavia |
| 76 | Paul P Altman | 58 | Head | Farm Operator | Germany |
| 77 | Nettie A Altman | 59 | Wife | House Wife | Iowa |
| 78 | Ross Slaley | 63 | Head | Farm Operator | Nova Scotia |
| 79 | Bertha B Slaley | 42 | Wife | House Wife | Illinois |
| 80 | Joice Clare Slaley | 16 | Daughter | Student | Illinois |
Related Census Records
Pedigree Summary
Kenneth + 2 siblings
Gen 1 · 3 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)