CJ
Carl Jensen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Carl Jensen across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Carl & Marie — first a head (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Jensen |
| Given Name | Carl W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | salesman kitchen utensils |
| Industry | Hardware co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Salesman Kitchen Utensils |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1908 |
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 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Carl Jensen | Head | — | 32 | ~1908 |
| Magna Jensen | Spouse | — | 26 | ~1914 |
| Marilyn Jensen | Daughter | — | ~1940 |
Census Appearances
1920
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1908 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Carl W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Denmark |
| Year of Immigration | 1911 |
| Naturalization Status | Alien |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1930
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Carl W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Bookkeeper |
| Industry | Banks |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Cook-County, Illinois
Head, age 32
Cook-County, Illinois · implied b. ~1908 — 3 household members
| Surname | Jensen |
| Given Name | Carl W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | salesman kitchen utensils |
| Industry | Hardware co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Carl Jensen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carl Jensen (~0.92 confidence) and mother Marie Jensen (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Jensen
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Marie Jensen
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Jensen
Head · 1940 · age 32 · b. ~1908 · 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-t0627-00990-00661)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Eastwood | 46 | Head | Grave Lot Salesman | Illinois |
| 42 | Frieda Eastwood | 41 | Wife | — | Illinois |
| 43 | William O. Eastwood | 10 | Son | — | Illinois |
| 44 | Otto R. Skallerup | 46 | Head | Cashier | Illinois |
| 45 | Rebecca J. Skallerup | 45 | Wife | — | Illinois |
| 46 | James R. Skallerup | 18 | Son | — | Illinois |
| 47 | Harry R. Skallerup | 13 | Son | — | Illinois |
| 48 | Roy E. Carlson | 39 | Head | Checker Of Autos | Illinois |
| 49 | Anna Carlson | 51 | Wife | — | Illinois |
| 50 | Roy E. S. Carlson | 9 | Son | — | Illinois |
| 51 | Peter S. Carlson | 44 | Head | Janitor | Sweden |
| 52 | Helma Carlson | 56 | Wife | Tailor | Sweden |
| 53 | Arthur S. Nordlund | 52 | Head | Wood Finisher | Illinois |
| 54 | Hildra M. Nordlund | 53 | Wife | — | Sweden |
| 55 | Victor A. Nordlund | 23 | Son | — | Illinois |
| 56 | Vincent A. Nordlund | 14 | Son | — | Illinois |
| 57 | William J. Riley | 83 | Head | — | Illinois |
| 58 | Mary A. Riley | 78 | Wife | — | England |
| 59 | Agnes E. Riley | 51 | Daughter | Operator | Illinois |
| 60 | Ralph R. Riley | 44 | Head | Police Sergeant | Illinois |
| 61 | Marie A. Riley | 47 | Wife | — | Illinois |
| 62 | Ralph W. Riley | 13 | Son | — | Illinois |
| 63 | Carl M. Jensen | 70 | Head | — | Denmark |
| 64 | Marie M. Jensen | 67 | Wife | — | Denmark |
| 65 | Orchella Knudsen | 76 | Lodger | General Cleaning | Norway |
| 66 | Carl W. Jensen THIS PERSON | 32 | Head | Salesman Kitchen Utensils | Denmark |
| 67 | Magna J. Jensen | 26 | Wife | — | Denmark |
| 68 | Marilyn K. Jensen | 0 | Daughter | — | Illinois |
| 69 | Harry M. Borden | 54 | Head | Laborer | Illinois |
| 70 | Anna B. Borden | 56 | Wife | — | Illinois |
| 71 | June L. Borden | 16 | Daughter | — | Illinois |
| 72 | Harry L. Borden | 14 | Son | — | Illinois |
| 73 | Peter Spata | 57 | Head | Janitor | Italy |
| 74 | Herman Hermansen | 47 | Head | Porter | Denmark |
| 75 | Alma M. Hermansen | 42 | Wife | Saleslady | Illinois |
| 76 | Fred G. Hermansen | 15 | Son | — | Illinois |
| 77 | John Budelman | 46 | Head | Iron Worker | Illinois |
| 78 | Katherine Budelman | 43 | Wife | — | Illinois |
| 79 | Loretta Budelman | 20 | Daughter | Order Checker | Illinois |
| 80 | John Budelman | 14 | Son | — | Illinois |
Pedigree Summary
Carl
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)