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Alfred Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Alfred Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Matthew & Ingeborg — first a head (b.~1898), then head of a 4-person household.
Age 42
b. ~1898
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago, city |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Dental Technician |
| Industry | Dental Laboratory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2284 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Dental Technician |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1898 |
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 Alfred | Age | Birth yr |
|---|---|---|---|---|
| Ruth Johnson | Daughter | — | 12 | ~1928 |
| Alfred Johnson | Head | — | 42 | ~1898 |
| Russell Johnson | Son | — | 9 | ~1931 |
| Ingeborg Johnson | Spouse | — | 38 | ~1902 |
Census Appearances
1910
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1898 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alfred H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Norway |
| Year of Immigration | 1908 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1920
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Norway |
| Year of Immigration | 1905 |
| Naturalization Status | Alien |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Apprentice |
| Industry | Lithograph Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1930
Cook, Illinois
Other, age 32
Cook, Illinois · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alfred H. |
| Relationship to Head | R |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1905 |
| Age at First Marriage | 25 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Silver-smith |
| Industry | Jewelry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | 30 |
| Home Value / Rent | No |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Cook-County, Illinois
Head, age 42
Cook-County, Illinois · implied b. ~1898 — 4 household members
| Surname | Johnson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago, city |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Dental Technician |
| Industry | Dental Laboratory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2284 |
| Highest Grade | No 8 |
| 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 Alfred Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Matthew Johnson (~0.92 confidence) and mother Ingeborg Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Matthew Johnson
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Ingeborg Johnson
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alfred Johnson
Head · 1940 · age 42 · b. ~1898 · 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-t0627-00984-00244)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Philly L Gertzell | 14 | Son | — | Illinois |
| 2 | Vincent Chmielewski | 65 | Head | Repair Man | Poland |
| 3 | Clara Chmielewski | 45 | Wife | — | Poland |
| 4 | Milton Chmielewski | 13 | Son | — | Illinois |
| 5 | Joseph Boncek | 38 | Head | Trucker | Illinois |
| 6 | Jessie Boncek | 36 | Wife | — | Illinois |
| 7 | Joyce Boncek | 6 | Daughter | — | Illinois |
| 8 | Jack Fentz | 52 | Head | Milk Man | Illinois |
| 9 | Ethel Fentz | 52 | Wife | — | Illinois |
| 10 | Roy Kersten | 50 | Head | Examiner | Illinois |
| 11 | Ruth Kersten | 32 | Wife | Typist | Illinois |
| 12 | Doris Mae Kersten | 16 | Daughter | — | Illinois |
| 13 | Allie Mcqueen | 49 | Head | Pressman | Tennessee |
| 14 | Rose Mcqueen | 46 | Wife | — | Illinois |
| 15 | Mildred Mcqueen | 19 | Daughter | General Office Work | Illinois |
| 16 | William Grunewald | 79 | Boarder | — | Germany |
| 17 | Mary Grunewald | 77 | Boarder | — | Illinois |
| 18 | Anthony Benadi | 28 | Head | Shoe Repairing | Illinois |
| 19 | Julia Benadi | 32 | Wife | — | Louisiana |
| 20 | Alfred Johnson THIS PERSON | 42 | Head | Dental Technician | Norway |
| 21 | Ingeborg Johnson | 38 | Wife | — | Norway |
| 22 | Ruth Johnson | 12 | Daughter | — | Illinois |
| 23 | Russell Johnson | 9 | Son | — | Illinois |
| 24 | Fanny Krammer | 77 | Head | — | Germany |
| 25 | Alfred Schneeberger | 65 | Head | — | Austria |
| 26 | Cecelia Schneeberger | 57 | Wife | — | Austria |
| 27 | Sherman Mathew | 39 | Head | Machinist | Illinois |
| 28 | Lora Mathew | 35 | Wife | — | Norway |
| 29 | Jacqueline Mathew | 13 | Daughter | — | Illinois |
| 30 | James Mathew | 82 | Father | — | Kentucky |
| 31 | Otto Lindberg | 67 | Head | Painter & Decorator | Sweden |
| 32 | Mathilda Lindberg | 61 | Wife | — | Sweden |
| 33 | Anna Steinbeck | 66 | Head | — | Germany |
| 34 | Frank Steinbeck | 48 | Son | Insulator | Illinois |
| 35 | Gordon Cooper | 42 | Head | Baker | Wisconsin |
| 36 | Nora Cooper | 39 | Wife | — | Minnesota |
| 37 | Shirley Cooper | 16 | Daughter | — | Illinois |
| 38 | Richard Cooper | 13 | Son | — | Illinois |
| 39 | Marilyn Cooper | 13 | Daughter | — | Illinois |
| 40 | Cornelius Cooper | 12 | Son | — | Illinois |
Pedigree Summary
Alfred
Gen 1 · 2 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)