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Theodore Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Theodore Thompson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 700 |
| Highest Grade | 8 |
| 1935 Residence | Same home |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Carpenter |
| Township / Ward | Chicago |
| Est. Birth Year | ~1886 |
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 Theodore | Age | Birth yr |
|---|---|---|---|---|
| Martha Thompson | Daughter | — | 29 | ~1911 |
| Theodore Thompson | Head | — | 54 | ~1886 |
| Jennie Thompson | Spouse | — | 56 | ~1884 |
| Gudrun Thompson | Daughter | — | 27 | ~1913 |
Census Appearances
1920
Cook, Illinois
Head, age 33
Cook, Illinois · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Carpenter |
| Industry | Boat |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | R |
| Birth Country | Norway |
| Year of Naturalization | 1909 |
| Birthplace (normalized) | norway |
1930
Cook, Illinois
Head, age 45
Cook, Illinois · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Age at First Marriage | 23 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Gardener |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Radio Set | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Cook-County, Illinois
Head, age 54
Cook-County, Illinois · implied b. ~1886 — 4 household members
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Carpenter |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 700 |
| Highest Grade | 8 |
| 1935 Residence | Same home |
| 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 Theodore Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Theodore Thompson
Head · 1940 · age 54 · b. ~1886 · Illinois
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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-t0627-00993-00103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ethel L Larson | 46 | Wife | — | Illinois |
| 2 | Lorraine Larson | 20 | Daughter | Stenographer | Illinois |
| 3 | Ernest Larson | 20 | Son | Office Clerk | Illinois |
| 4 | Clifford Larson | 18 | Son | Office Clerk | Illinois |
| 5 | Nellie J Kloeppel | 66 | Head | — | Illinois |
| 6 | Earl G Kloeppel | 45 | Son | Plumber | Illinois |
| 7 | Emily Kloeppel | 40 | Daughter-in-law | — | Kentucky |
| 8 | Geo J Kloeppel | 13 | Grandson | — | Illinois |
| 9 | Bernice Marshall | 33 | Head | — | Illinois |
| 10 | William Marshall | 15 | Son | — | Illinois |
| 11 | Kurt Marshall | 12 | Daughter | — | Illinois |
| 12 | Leta Marshall | 10 | Daughter | — | Washington |
| 13 | Dolores Marshall | 6 | Daughter | — | Washington |
| 14 | Charlie Henkel | 29 | Boarder | 85 Tabulator | Illinois |
| 15 | Russell R Finn | 38 | Head | Gas Fitter | Illinois |
| 16 | Lillian Finn | 42 | Wife | — | Illinois |
| 17 | Leroy A Finn | 21 | Son | Gear Cutter | Illinois |
| 18 | Lillie Deppe | 67 | Head | — | Pennsylvania |
| 19 | Henry Liffke | 67 | Boarder | Molder | Russia |
| 20 | Theodore Thompson THIS PERSON | 54 | Head | Carpenter | Norway |
| 21 | Jennie Thompson | 56 | Wife | Maintenance | Norway |
| 22 | Martha L Thompson | 29 | Daughter | Stenographer | Illinois |
| 23 | Gudrun Thompson | 27 | Daughter | Piano Teacher | Illinois |
| 24 | Joseph Borowczyk | 29 | Head | Dental Technician | Illinois |
| 25 | Genevieve Borowczyk | 26 | Wife | — | Poland |
| 26 | Eugene Borowczyk | 7 | Son | — | Illinois |
| 27 | Josephine Borowczyk | 1 | Son | — | Illinois |
| 28 | — | None | — | — | — |
| 29 | Herman Miller | 73 | Head | — | Germany |
| 30 | Louise Miller | 63 | Wife | — | Illinois |
| 31 | Ruth H Miller | 40 | Daughter | — | Illinois |
| 32 | Lewis Miller | 28 | Son | Welder | Illinois |
| 33 | Margaret Miller | 22 | Daughter-in-law | Beauty Operator | Illinois |
| 34 | Otto Benson | 65 | Head | 26 Carpenter Master | Sweden |
| 35 | Minnie Benson | 59 | Wife | — | Sweden |
| 36 | Palle Triis | 36 | Head | Stock Hand | Denmark |
| 37 | Edith Triis | 36 | Wife | — | Denmark |
| 38 | Paul K Triis | 9 | Son | — | Illinois |
| 39 | Ditlev A Triis | 4 | Son | — | Illinois |
| 40 | David A Anderson | 40 | Head | Chief Clerk | Illinois |
Related Census Records
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)