OJ
Otto Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Otto Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Otto |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Painter |
| Industry | Finish Shop |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 1500 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Painter |
| Township / Ward | Chicago |
| Est. Birth Year | ~1888 |
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 Otto | Age | Birth yr |
|---|---|---|---|---|
| Hilda Johnson | Spouse | — | 47 | ~1893 |
| Gertrude Fredrickson | Daughter | — | 26 | ~1914 |
| Theodore Fredrickson | Other | — | 27 | ~1913 |
| Otto Johnson | Head | — | 52 | ~1888 |
Census Appearances
1910
Winnebago, Illinois
Other, age 23
Winnebago, Illinois · implied b. ~1887 — 43 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Otto |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1906 |
| Naturalization Status | Alien |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Park Dept. |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1920
Rock Island, …
Other, age 32
Rock Island, Illinois · implied b. ~1888 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Otto A |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Plow Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1919 |
| Birthplace (normalized) | sweden |
1930
De Kalb, …
Head, age 42
De Kalb, Illinois · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Otto |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 34 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cook-County, Illinois
Head, age 52
Cook-County, Illinois · implied b. ~1888 — 4 household members
| Surname | Johnson |
| Given Name | Otto |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Painter |
| Industry | Finish Shop |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 1500 |
| Highest Grade | 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 Otto Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 4 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Otto Johnson
Head · 1940 · age 52 · b. ~1888 · 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-t0627-00995-00156)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Olaf Jensen | 37 | Nephew | Mill Hand | Norway |
| 42 | Claude Wiedemann | 40 | Head | Manager | Illinois |
| 43 | Albert Wiedemann | 82 | Father | Salesman | Germany |
| 44 | Fred Stehr | 40 | Head | Mail Man | Illinois |
| 45 | Dorothy Stehr | 36 | Wife | — | Illinois |
| 46 | Betty Phelps | 13 | Daughter | — | Illinois |
| 47 | Grace Thompson | 48 | Sister-in-law | Off. Manager | Wisconsin |
| 48 | Leonard Pedersen | 50 | Head | Conductor | Wisconsin |
| 49 | Harry Pedersen | 26 | Son | Laborer | Illinois |
| 50 | Leonard Pedersen | 20 | Son | Machinist | Illinois |
| 51 | Raymond Pedersen | 18 | Son | Artist | Illinois |
| 52 | Lorraine Pedersen | 17 | Daughter | — | Illinois |
| 53 | Betty Lou Pedersen | 7 | Daughter | — | Illinois |
| 54 | Hugh Mccarrow | 50 | Head | Electrician | Illinois |
| 55 | Gertrude Mccarrow | 48 | Wife | — | Illinois |
| 56 | Robert Mccarrow | 18 | Son | Electrician | Illinois |
| 57 | Otto Johnson THIS PERSON | 52 | Head | Painter | Sweden |
| 58 | Hilda Johnson | 47 | Wife | — | Sweden |
| 59 | Theodore Fredrickson | 27 | Son-in-law | Attendant | Illinois |
| 60 | Gertrude Fredrickson | 26 | Daughter | Laborer | California |
| 61 | John Wiedemann | 65 | Head | — | Germany |
| 62 | Caroline Wiedemann | 58 | Wife | — | Germany |
| 63 | Robert Albrecht | 45 | Head | Merchant | Italy |
| 64 | Margaret Albrecht | 37 | Wife | Saleswoman | Italy |
| 65 | Anita A. Albrecht | 18 | Daughter | — | Illinois |
| 66 | Rosemary Albrecht | 11 | Daughter | — | Illinois |
| 67 | John Mueller | 47 | Head | Laborer | Illinois |
| 68 | Anna Mueller | 42 | Wife | — | Illinois |
| 69 | Virginia Mueller | 20 | Daughter | Govt. Clerk | Illinois |
| 70 | Albert Ramsden | 40 | Head | Officer | England |
| 71 | Emma Ramsden | 51 | Wife | — | England |
| 72 | Joan Ramsden | 13 | Daughter | — | Illinois |
| 73 | Lois Ramsden | 11 | Daughter | — | Illinois |
| 74 | James Mckenrick | 48 | Head | Broker | Illinois |
| 75 | Myrtle Mckenrick | 48 | Wife | — | Illinois |
| 76 | James Mckenrick | 17 | Son | — | Illinois |
| 77 | Robert Mckenrick | 16 | Son | — | Illinois |
| 78 | Hannah Hanson | 74 | Mother-in-law | — | Norway |
| 79 | Harry Wilson | 64 | Head | Service Correspondent | Michigan |
| 80 | Mary E. Wilson | 58 | Wife | — | South Dakota |
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)