HJ
Harold Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Harold Johnson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents Harold & Harold — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Johnson |
| Given Name | Harold H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Loves Park |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | none |
| Class of Worker | 0 |
| Hours Worked | 6 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Loves Park |
| Est. Birth Year | ~1916 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Harold Johnson | Head | — | 50 | ~1890 |
| Raymond Johnson | Son | — | 17 | ~1923 |
| Harold Johnson | Son | — | 24 | ~1916 |
| Glenn Johnson | Son | — | 21 | ~1919 |
| Ruth Johnson | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Winnebago, Illinois
Son, age 4
Winnebago, Illinois · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Winnebago, Illinois
Son, age 14
Winnebago, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harold Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Winnebago-County, Illinois
Son, age 24
Winnebago-County, Illinois · implied b. ~1916 — 5 household members
| Surname | Johnson |
| Given Name | Harold H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Loves Park |
| 1935 Residence (County) | Winnebago |
| Occupation | none |
| Class of Worker | 0 |
| Hours Worked | 6 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Harold Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harold Johnson (~0.92 confidence) and father Harold Johnson (~0.92 confidence) and father Harold Johnson (~0.92 confidence) and mother Ruth Johnson (~0.92 confidence) and mother Ruth Johnson (~0.92 confidence) and mother Ruth Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harold Johnson
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Harold Johnson
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Harold Johnson
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Ruth Johnson
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ruth Johnson
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ruth Johnson
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Johnson
Son · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Raymond Johnson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glenn Johnson
Sibling · 1940 · age 21
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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00915-00335)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur Jensen | 41 | Head | Painter Decorator | Denmark |
| 2 | Anna Jensen | 47 | Wife | None | Illinois |
| 3 | Milton Jensen | 16 | Son | None | Iowa |
| 4 | Fred W. Olson | 56 | Head | Machinist | Sweden |
| 5 | Ellen Olson | 56 | Wife | None | Sweden |
| 6 | Francis Olson | 23 | Daughter | None | Illinois |
| 7 | Frank E. Plantikow | 34 | Head | Truck Driver | Wisconsin |
| 8 | Dora Plantikow | 33 | Wife | None | So. Dakota |
| 9 | Delores Plantikow | 14 | Daughter | None | Illinois |
| 10 | Willie Richardson | 36 | Brother-in-law | Set Up Man | England |
| 11 | Stuart A. Foss | 43 | Head | Sheet Metal | Illinois |
| 12 | Eva Foss | 43 | Wife | None | Illinois |
| 13 | John Foss | 21 | Son | None | Illinois |
| 14 | Harvey H. Rydholm | 52 | Head | Construction | Illinois |
| 15 | Marie Rydholm | 52 | Wife | None | Sweden |
| 16 | Henry O. Wegmann | 38 | Head | Finisher | Germany |
| 17 | Fanny Wegmann | 40 | Wife | None | Germany |
| 19 | Bernard A. Gerlach | 35 | Head | Recreation | Wisconsin |
| 20 | Elina Gerlach | 41 | Wife | None | Finland |
| 22 | Lois Bergalt | 3 | Daughter | — | Illinois |
| 24 | Barney L. Warren | 43 | Head | Welder | Missouri |
| 25 | Reba Warren | 40 | Wife | None | Missouri |
| 26 | John W. Warren | 16 | Son | None | Missouri |
| 27 | Fred O. Carlson | 50 | Head | Machinist | Illinois |
| 28 | Judith Carlson | 43 | Wife | None | Illinois |
| 29 | Franklin Carlson | 17 | Son | None | Illinois |
| 30 | Joyce Carlson | 11 | Daughter | — | Illinois |
| 31 | Harold H. Johnson | 50 | Head | Superintendent | Illinois |
| 32 | Ruth W. Johnson | 47 | Wife | None | Illinois |
| 33 | Harold H. Jr. Johnson THIS PERSON | 24 | Son | None | Michigan |
| 34 | Glenn L. Johnson | 21 | Son | None | Illinois |
| 35 | Raymond Johnson | 17 | Son | None | Illinois |
| 36 | Willard W. Hough | 25 | Head | Butcher Proprietor | Illinois |
| 37 | Leona Hough | 25 | Wife | None | Illinois |
| 38 | Ronald Hough | 3 | Son | — | Illinois |
| 39 | Charles W. Happ | 74 | Head | None | Illinois |
| 40 | Jessie M. Happ | 69 | Wife | None | Illinois |
Pedigree Summary
Harold + 2 siblings
Gen 1 · 6 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)