JJ
Julius Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Julius Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 3-person household.
Age 69
b. ~1871
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Julius |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Chicago |
| Est. Birth Year | ~1871 |
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 Julius | Age | Birth yr |
|---|---|---|---|---|
| Julius Johnson | Head | — | 69 | ~1871 |
| Walter Johnson | Son | — | 46 | ~1894 |
| Charlotte Johnson | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Cook, Illinois
Other, age 50
Cook, Illinois · implied b. ~1870 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Julia |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1900 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Seaman |
| Industry | Steamship Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1905 |
| Birthplace (normalized) | sweden |
1930
Cook, Illinois
Head, age 60
Cook, Illinois · implied b. ~1870 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Julius |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Age at First Marriage | 23 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Vigoro Finisher |
| Industry | Fertilizer Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cook-County, Illinois
Head, age 69
Cook-County, Illinois · implied b. ~1871 — 3 household members
| Surname | Johnson |
| Given Name | Julius |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Julius Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Julius Johnson
Head · 1940 · age 69 · b. ~1871 · Illinois
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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
39 people indexed on this census page (nara:1940:m-t0627-01011-00767)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ellen | 51 | Wife | — | Iowa |
| 2 | Nanny Schulin | 77 | Head | — | Missouri |
| 3 | Alfred Cly | 31 | Head | Mail Dispatcher | Illinois |
| 4 | Marion Cly | 22 | Wife | — | Illinois |
| 5 | Robert Cly | 2 | Son | — | Illinois |
| 6 | Luana Lee Cly | 1 | Daughter | — | Illinois |
| 7 | Algot Peterson | 34 | Head | Laborer | Sweden |
| 8 | Mildred Peterson | 28 | Wife | — | Illinois |
| 9 | Doris Peterson | 5 | Daughter | — | Illinois |
| 10 | Leonard Peterson | 3 | Son | — | Illinois |
| 11 | Erick Carlson | 37 | Lodger | Bottler | Sweden |
| 12 | Minnie Braun | 72 | Head | — | Germany |
| 13 | Walter Stratton | 32 | Head | Lithographer | Illinois |
| 14 | Dorothy Stratton | 28 | Wife | — | Illinois |
| 15 | Patricia Stratton | 4 | Daughter | — | Illinois |
| 16 | Thomas Stratton | 2 | Son | — | Illinois |
| 17 | Nancy Stratton | 1 | Daughter | — | Illinois |
| 18 | Karl Vogel | 47 | Head | Driver | Germany |
| 19 | Helen Vogel | 48 | Wife | — | Germany |
| 20 | Dolores Vogel | 16 | Daughter | — | Illinois |
| 21 | Colette Vogel | 15 | Daughter | — | Illinois |
| 22 | Geraldine Vogel | 9 | Daughter | — | Illinois |
| 23 | Minnie Knaak | 58 | Head | — | Indiana |
| 24 | Louis Knaak | 26 | Son | Maintenance Man | Illinois |
| 25 | Florence Knaak | 32 | Daughter | Office Clerk | Illinois |
| 26 | Julius Johnson THIS PERSON | 69 | Head | — | Sweden |
| 27 | Charlotte Johnson | 63 | Wife | Seamstress | Illinois |
| 28 | Walter Johnson | 46 | Son | — | Illinois |
| 29 | Claus Seaberg | 51 | Head | Carpenter | Finland |
| 30 | Hilma Seaberg | 45 | Wife | — | Illinois |
| 31 | Loraine Seaberg | 24 | Daughter | Sales Clerk | Illinois |
| 32 | Ruby Seaberg | 22 | Daughter | Sales Clerk | Illinois |
| 33 | Edward Seaberg | 15 | Son | — | Illinois |
| 34 | George Staffeldt | 41 | Head | Truck Driver | Illinois |
| 35 | Marie Staffeldt | 35 | Wife | — | Iowa |
| 36 | George Staffeldt | 9 | Son | — | Illinois |
| 37 | Gerald Staffeldt | 8 | Son | — | Illinois |
| 38 | Nancy Staffeldt | 6 | Daughter | — | Illinois |
| 39 | Bernard Wdowicki | 33 | Head | Machine Operator | Illinois |
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)