JJ
John Jensen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Jensen across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 3-person household.
Age 52
b. ~1878
Male
Head
Born: Norway
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Jensen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1886 |
| Age at First Marriage | 20 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Additional Details | |
| Occupation | Salesman |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Salesman |
| Township / Ward | Chicago |
| Est. Birth Year | ~1878 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Bernice Jensen | Daughter | — | 21 | ~1909 |
| John Jensen | Head | — | 52 | ~1878 |
| Minnie Jensen | Spouse | — | 59 | ~1871 |
Census Appearances
1920
Cook, Illinois
Head, age 43
Cook, Illinois · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Norway |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Laborer |
| Industry | Coal Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1930
Cook, Illinois
Head, age 52
Cook, Illinois · implied b. ~1878 — 3 household members
| Surname | Jensen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1886 |
| Age at First Marriage | 20 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Salesman |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Cook-County, Illinois
Other, age 63
Cook-County, Illinois · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | John S. |
| Relationship to Head | Father |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | H 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 John Jensen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Jensen
Head · 1930 · age 52 · b. ~1878 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
49 people indexed on this census page (ia:1930:illinoiscensus00reel475:1047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Bennion | 24 | Son | — | Iowa |
| 2 | Roger Bennion | 18 | Son | — | Missouri |
| 3 | John Eckmann | 43 | Head | Conductor | Germany |
| 4 | Amelia Eckmann | 38 | Wife | — | Illinois |
| 5 | Walter Eckmann | 16 | Son | Printer | Illinois |
| 6 | Harry Eckmann | 14 | Son | — | Illinois |
| 7 | John Eckmann | 7 | Son | — | Illinois |
| 8 | Robert Puhlman | 41 | Head | Inspector | Illinois |
| 9 | Ina Puhlman | 42 | Wife | — | Germany |
| 10 | Emma Puhlman | 65 | Mother | — | Germany |
| 11 | Frank Stone | 43 | Head | Shoe Clerk | Illinois |
| 12 | Gretta Stone | 41 | Wife | — | Illinois |
| 13 | Gladys Stone | 18 | Daughter | Stenographer | Illinois |
| 14 | Lillian Stone | 15 | Daughter | Worker | Illinois |
| 15 | Frank Stone | 13 | Son | — | Illinois |
| 16 | Robert Stone | 11 | Son | — | Illinois |
| 17 | Ruth Stone | 10 | Daughter | — | Illinois |
| 18 | Walter Stone | 7 | Son | — | Illinois |
| 19 | Agusta Johnson | 60 | Head | Housekeeper | Sweden |
| 20 | Leland Johnson | 26 | Daughter | Worker | Illinois |
| 21 | Alice Johnson | 23 | Daughter | — | Illinois |
| 22 | Raymond Johnson | 18 | Son | — | Illinois |
| 23 | Herbert Larsen | 58 | Head | Tailor | Norway |
| 24 | Anna Larsen | 52 | Wife | — | Norway |
| 25 | John Larsen | 25 | Son | Electrician | Illinois |
| 26 | John Jensen THIS PERSON | 52 | Head | Salesman | Norway |
| 27 | Minnie Jensen | 59 | Wife | — | Norway |
| 28 | Bernice Jensen | 21 | Daughter | Operator | Illinois |
| 29 | August Kolodzik | 60 | Head | Helper | Illinois |
| 30 | Minnie Kolodzik | 43 | Wife | — | Illinois |
| 31 | Florence Kolodzik | 9 | Daughter | — | Illinois |
| 32 | Lucille Kolodzik | 7 | Daughter | — | Illinois |
| 33 | Joseph Kolodzik | 1 | Son | — | Illinois |
| 34 | Knud Knudsen | 39 | Head | Painter | Denmark |
| 35 | Anna Knudsen | 41 | Wife | — | Denmark |
| 36 | Edward Knudsen | 11 | Son | — | Illinois |
| 37 | Robert Knudsen | 5 | Son | — | Illinois |
| 38 | Frank Jacobsen | 36 | Head | Conductor | Illinois |
| 39 | Mary Jacobsen | 33 | Wife | — | Illinois |
| 40 | John Kuentzer | 71 | Father-in-law | — | Germany |
| 41 | Gustave Kae | 41 | Head | — | Illinois |
| 42 | Rose Kae | 41 | Wife | — | Illinois |
| 43 | Ralph Kae | 18 | Son | Upholsterer | Illinois |
| 44 | Dorothy Kae | 17 | Daughter | Examiner | Illinois |
| 45 | Robert Kae | 17 | Son | Clerk | Illinois |
| 46 | Richard Kae | 15 | Son | — | Illinois |
| 47 | Anton Larson | 37 | Head | Mechanic | Russia |
| 48 | Hazel Larson | 27 | Wife | — | Illinois |
| 49 | Dorothy Larson | 2 | Daughter | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)