MJ
Matilda Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Matilda Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 6-person household.
Age 53
b. ~1887
Female
Spouse
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Matilda |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1887 |
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 Matilda | Age | Birth yr |
|---|---|---|---|---|
| Eleanore Johnson | Daughter | — | 18 | ~1922 |
| Fred Johnson | Head | — | 55 | ~1885 |
| Leif Johnson | Son | — | 28 | ~1912 |
| Matilda Johnson | Spouse | — | 53 | ~1887 |
| Jean Johnson | Daughter | — | 10 | ~1930 |
| Florence Johnson | Daughter | — | 26 | ~1914 |
Census Appearances
1920
Cook, Illinois
Spouse, age 32
Cook, Illinois · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mathilda |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1910 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1930
Cook, Illinois
Spouse, age 42
Cook, Illinois · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mathilda |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 23 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Cook-County, Illinois
Spouse, age 53
Cook-County, Illinois · implied b. ~1887 — 6 household members
| Surname | Johnson |
| Given Name | Matilda |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Matilda 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
Matilda Johnson
Spouse · 1940 · age 53 · b. ~1887 · 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
40 people indexed on this census page (nara:1940:m-t0627-00987-00379)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Koznick | 82 | Head | — | Austria |
| 2 | Monica Koznick | 59 | Daughter | — | Illinois |
| 3 | Charles Koznick | 52 | Son | Artist | Illinois |
| 4 | Andrew Koznick | 41 | Son | Maintenance Man | Illinois |
| 5 | John R. Vollman | 58 | Head | Watchman | Germany |
| 6 | Clara Vollman | 54 | Wife | Kitchen Helper | Illinois |
| 7 | Alleyne Lertzel | 52 | Head | Salesman | Wisconsin |
| 8 | Elmyra Lertzel | 45 | Wife | — | Illinois |
| 9 | Paul Lertzel | 18 | Son | — | Illinois |
| 10 | Pauline Lertzel | 18 | Daughter | Secretary | Illinois |
| 11 | Arthur Lertzel | 16 | Son | — | Illinois |
| 12 | Kathrina Rothacker | 79 | Mother-in-law | — | Germany |
| 13 | George H. Smith | 50 | Head | Truck Driver | Illinois |
| 14 | Jennie Smith | 53 | Wife | — | Illinois |
| 15 | Pearl Smith | 18 | Daughter | Assembler | Illinois |
| 16 | Mary Shuyler | 61 | Head | — | Pennsylvania |
| 17 | Michael Parchuta | 26 | Head | Shipping Clerk | Russia |
| 18 | Bernice Parchuta | 24 | Wife | — | Illinois |
| 19 | Joyce Parchuta | 1 | Daughter | — | Illinois |
| 20 | Melvin Kennedy | 27 | Brother-in-law | Stenographer | Illinois |
| 21 | Paul Huebner | 60 | Head | Woodworker | Germany |
| 22 | Emma Huebner | 58 | Wife | — | Illinois |
| 23 | Charles Bourgait | 41 | Head | Insurance Agent | Illinois |
| 24 | Evelyn Bourgait | 32 | Wife | — | Iowa |
| 25 | Charles Bourgait | 11 | Son | — | Iowa |
| 26 | Michael Thekey | 65 | Father | — | Iowa |
| 27 | Fred Johnson | 55 | Head | Cabinet Maker | Norway |
| 28 | Matilda Johnson THIS PERSON | 53 | Wife | — | Norway |
| 29 | Leif Johnson | 28 | Son | Cabinet Maker | Illinois |
| 30 | Florence Johnson | 26 | Daughter | Housemaid | Illinois |
| 31 | Eleanore Johnson | 18 | Daughter | Doctors Receptionist | Illinois |
| 32 | Jean Johnson | 10 | Daughter | — | Illinois |
| 33 | Charles Ferrera | 49 | Head | Plumber | Italy |
| 34 | Stephanie Ferrera | 44 | Wife | Buttonhole Maker | Italy |
| 35 | Mary Ferrera | 16 | Daughter | — | Illinois |
| 36 | Leo Ferrera | 12 | Son | — | Illinois |
| 37 | Anna Ferrera | 10 | Daughter | — | Illinois |
| 38 | John Ferrera | 8 | Son | — | Illinois |
| 39 | Richard Ferrera | 5 | Son | — | Illinois |
| 40 | Walder Christiansen | 36 | Head | Accountant | Illinois |
Related Census Records
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)