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Agnes Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Agnes Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Agnes |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1890 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Agnes | Age | Birth yr |
|---|---|---|---|---|
| Ruth Johnson | Daughter | — | 25 | ~1915 |
| Arvid Johnson | Head | — | 52 | ~1888 |
| Raymond Johnson | Son | — | 26 | ~1914 |
| Agnes Johnson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Cook, Illinois
Spouse, age 30
Cook, Illinois · implied b. ~1890 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Agnes |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1905 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Cook, Illinois
Spouse, age 40
Cook, Illinois · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Agnes |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 21 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cook-County, Illinois
Spouse, age 50
Cook-County, Illinois · implied b. ~1890 — 4 household members
| Surname | Johnson |
| Given Name | Agnes |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Agnes 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
Agnes Johnson
Spouse · 1940 · age 50 · b. ~1890 · 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-t0627-01000-00041)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Erna Pfaff | 26 | Daughter | Saleslady | Illinois |
| 42 | Arvid Johnson | 52 | Head | Painter | Sweden |
| 43 | Agnes Johnson THIS PERSON | 50 | Wife | — | Sweden |
| 44 | Raymond Johnson | 26 | Son | Clerk | Illinois |
| 45 | Ruth Johnson | 25 | Daughter | Stenographer | Illinois |
| 46 | Mary Morrissey | 73 | Head | — | Ireland |
| 47 | Patrick Haugherty | 50 | Lodger | Motorman | Kentucky |
| 48 | Robert Kirch | 52 | Head | Steel Exposer | Illinois |
| 49 | Cora Kirch | 54 | Wife | — | Nebraska |
| 50 | Virginia Kirch | 20 | Daughter | Ribbon Winder | Illinois |
| 51 | Harry Theffery | 47 | Head | Carpenter | Illinois |
| 52 | Josephine Theffery | 50 | Wife | — | Illinois |
| 53 | H. Warren Theffery | 21 | Son | Operating Engineer | Illinois |
| 54 | Herman Littmann | 57 | Head | Clerk | Germany |
| 55 | Caroline Littmann | 59 | Wife | — | Germany |
| 56 | Dorothea Littmann | 28 | Daughter | Stenographer | Wisconsin |
| 57 | Alfred Littmann | 27 | Son | Assistant Punch Press | Wisconsin |
| 58 | Charles Anderson | 37 | Head | Operator | Illinois |
| 59 | Regina Anderson | 35 | Wife | — | Illinois |
| 60 | Joseph Drake | 34 | Lodger | Maintenance Man | Illinois |
| 61 | Edward Schneider | 25 | Head | Bleacher | Illinois |
| 62 | Marion Schneider | 23 | Wife | — | Illinois |
| 63 | Edward Schneider | 5 | Son | — | Illinois |
| 64 | Charles Jackson | 63 | Head | — | Sweden |
| 65 | Hannie Jackson | 61 | Wife | — | Illinois |
| 66 | Thomas Augustyn | 52 | Head | Mechanic | Poland |
| 67 | Sophie Augustyn | 48 | Wife | — | Poland |
| 68 | Chester Augustyn | 22 | Son | Assembler | Illinois |
| 69 | Cecelia Augustyn | 17 | Daughter | Marker | Illinois |
| 70 | Casimer Augustyn | 14 | Son | — | Illinois |
| 71 | Albert Cygan | 30 | Head | Helper Machine Shop | Illinois |
| 72 | Estelle Cygan | 28 | Wife | Assembler | Illinois |
| 73 | Bernard Kortas | 63 | Head | Machinist | Germany |
| 74 | Anna Kortas | 52 | Wife | — | Illinois |
| 75 | Catherine Mondschein | 75 | Mother-in-law | — | New York |
| 76 | Wilhelmine Albert | 65 | Head | — | Germany |
| 77 | Arthur Albert | 34 | Son | Salesman | Germany |
| 78 | Clara Albert | 29 | Daughter | Stenographer | Illinois |
| 79 | Otto Albert | 39 | Son | Chauffeur | Illinois |
| 80 | Ina Albert | 32 | Daughter-in-law | — | 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)