HJ
Herbert Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Herbert Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1903), then head of a 5-person household.
Age 37
b. ~1903
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| Additional Details | |
| Occupation | President |
| Industry | Private school |
| Class of Worker | E |
| Hours Worked | 40 |
| Income (1939) | 5000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | President |
| Township / Ward | Wilmette Village |
| Est. Birth Year | ~1903 |
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 Herbert | Age | Birth yr |
|---|---|---|---|---|
| Herbert Johnson | Head | — | 37 | ~1903 |
| Mildred Johnson | Other | — | 28 | ~1912 |
| Herbert Johnson | Son | — | 11 | ~1929 |
| Richard Johnson | Son | — | ~1940 | |
| Edna Johnson | Spouse | — | 33 | ~1907 |
Census Appearances
1910
Cook, Illinois
Son, age 6
Cook, Illinois · implied b. ~1904 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 17
Cook, Illinois · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 27
Cook, Illinois · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| Age at First Marriage | 27 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Pressman |
| Industry | Printing Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 37
Cook-County, Illinois · implied b. ~1903 — 5 household members
| Surname | Johnson |
| Given Name | Herbert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| Occupation | President |
| Industry | Private school |
| Class of Worker | E |
| Hours Worked | 40 |
| Income (1939) | 5000 |
| Highest Grade | H 4 |
| 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 Herbert Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and mother Annie Johnson (~0.92 confidence) and father James Johnson (~0.92 confidence) and mother Emma Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Johnson
b. ~1856
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Annie Johnson
b. ~1860
Source mother
● Household
· direct · ~0.92
Father
James Johnson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Emma Johnson
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Herbert Johnson
Head · 1940 · age 37 · b. ~1903 · 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00782-01055)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur O Ehlers | 38 | Head | Farm Owner | Illinois |
| 42 | Margaret Ehlers | 37 | Wife | — | Illinois |
| 43 | Albert Ehlers | 8 | Son | — | Illinois |
| 44 | Phillip Ehlers | 3 | Son | — | Illinois |
| 45 | Gertrude Grosnell | 21 | Maid | Maid | Michigan |
| 46 | Herbert Johnson THIS PERSON | 37 | Head | President | Illinois |
| 47 | Edna Johnson | 33 | Wife | — | Illinois |
| 48 | Herbert Johnson | 11 | Son | — | Illinois |
| 49 | Richard Johnson | 0 | Son | — | Illinois |
| 50 | Mildred Johnson | 28 | Sister | Secretary | Illinois |
| 51 | Martin Braun | 36 | Head | Bricklayer | Illinois |
| 52 | Mary Braun | 40 | Wife | — | Illinois |
| 53 | Robert Ludford | 51 | Head | Lithographer | Illinois |
| 54 | Elsie Ludford | 49 | Wife | — | Illinois |
| 55 | Pearl Ludford | 22 | Daughter | Receptionist | Illinois |
| 56 | James Ludford | 14 | Son | — | Illinois |
| 57 | Robert Ludford | 11 | Son | — | Illinois |
| 58 | Ludwig Pfoser | 30 | Head | Caretaker | Germany |
| 59 | Katie Pfoser | 32 | Wife | — | Germany |
| 60 | Otto Pfoser | 5 | Son | — | Illinois |
| 61 | Charles Ziebarth | 49 | Head | Secretary | Germany |
| 62 | Marion Ziebarth | 39 | Wife | — | Illinois |
| 63 | Jack A Ziebarth | 14 | Son | — | Illinois |
| 64 | Robert C Ziebarth | 3 | Son | — | Illinois |
| 65 | Olga Taylor | 41 | Maid | Maid | Germany |
| 66 | Casper Smith | 49 | Head | Cab Driver | Illinois |
| 67 | Margaret Smith | 51 | Head | Housework | Wisconsin |
| 68 | Elmer Smith | 19 | Son | Gardener | Illinois |
| 69 | Bob Smith | 18 | Son | Groom | Illinois |
| 70 | James Watson | 42 | Head | Personnel Head | New York |
| 71 | Florence Watson | 31 | Wife | — | England |
| 72 | Guy Watson | 5 | Son | — | California |
| 73 | Ruby Bower | 25 | Maid | Maid | Iowa |
| 74 | Edward Fronz | 57 | Head | Carpenter | Illinois |
| 75 | Emma Fronz | 45 | Wife | — | Poland |
| 76 | Edward Fronz | 15 | Son | — | Illinois |
| 77 | Roger Doderlein | 36 | Head | Buyer | Illinois |
| 78 | G. E. Doderlein | 36 | Wife | Bookkeeper | Illinois |
| 79 | Muriel Doderlein | 15 | Daughter | — | Illinois |
| 80 | Oscar Anderson | 49 | Head | Draftsman | Norway |
Pedigree Summary
Herbert
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)