DT
Dorothy Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Dorothy Thompson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Le & Sigrid — first a daughter (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Female
Daughter
Born: Illinois
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Thompson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Office Clerk |
| Industry | Wholesale Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Office Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1911 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Thompson | Daughter | — | 29 | ~1911 |
| Louis Julken | Head | — | 55 | ~1885 |
| Sigrid Julken | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Cook, Illinois
Daughter, age 9
Cook, Illinois · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 19
Cook, Illinois · implied b. ~1911 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Dorothy L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Industry | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 29
Cook-County, Illinois · implied b. ~1911 — 3 household members
| Surname | Thompson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Occupation | Office Clerk |
| Industry | Wholesale Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Dorothy Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Le Thompson (~0.92 confidence) and mother Sigrid Julken (~0.92 confidence) and father Louis Julken (~0.92 confidence) and father Leroy Thompson (~0.92 confidence) and mother Mamie Thompson (~0.92 confidence) and mother Marie Thompson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Le Thompson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Sigrid Julken
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
Louis Julken
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Leroy Thompson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Mamie Thompson
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Marie Thompson
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Thompson
Daughter · 1940 · age 29 · b. ~1911 · 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-t0627-01001-00733)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Clarke | 26 | Son | Repairman | Illinois |
| 2 | Fred Clarke | 24 | Son | Salesman | Illinois |
| 3 | Agnes B. Schmidt | 45 | Head | — | Germany |
| 4 | Catherine Schmidt | 21 | Daughter | Cashier | Illinois |
| 5 | Margaret Schmidt | 19 | Daughter | Factory Work | Illinois |
| 6 | Doris Schmidt | 15 | Daughter | — | Illinois |
| 7 | Freda Schmidt | 7 | Daughter | — | Illinois |
| 8 | Freda Beames | 44 | Sister | Proprietor | Germany |
| 9 | Carl Schlimmer | 53 | Brother in law | Proprietor | Germany |
| 10 | Doris Schlimmer | 44 | Sister in law | Proprietor | Germany |
| 11 | Andrew D. Mores | 86 | Head | — | Sweden |
| 12 | Rolf Mores | 40 | Son | Office Clerk | Illinois |
| 13 | George Ziegler | 59 | Head | Waiter | Germany |
| 14 | Marie B. Ziegler | 54 | Wife | — | Germany |
| 15 | Georgia Ziegler | 18 | Daughter | Office Clerk | Germany |
| 16 | Frank R. Knowles | 55 | Head | Carpenter | England |
| 17 | Edith Knowles | 56 | Wife | — | England |
| 18 | Fred W. Nagel | 47 | Head | Motorman | Illinois |
| 19 | Anna Nagel | 39 | Wife | — | Illinois |
| 20 | Raymond Nagel | 7 | Step-son | Laborer | Illinois |
| 21 | Caroline D. Palmquist | 57 | Head | — | Sweden |
| 22 | Robert Palmquist | 28 | Son | Driller | Illinois |
| 23 | Ebba Palmquist | 27 | Daughter | Office Clerk | Illinois |
| 24 | Helen Palmquist | 25 | Daughter | Office Clerk | Illinois |
| 25 | Evelyn Palmquist | 15 | Daughter | — | Illinois |
| 26 | Anna Rye | 66 | Lodger | — | Norway |
| 27 | Herman Dick | 50 | Head | Writer | New York |
| 28 | Hilda G. Dick | 51 | Wife | — | Illinois |
| 29 | John D. Prime | 44 | Head | Office Clerk | Ohio |
| 30 | Ruth Prime | 25 | Wife | Office Clerk | Illinois |
| 31 | Carl Bianchi | 55 | Head | Mechanic | Italy |
| 32 | Mary V. Bianchi | 54 | Wife | — | Italy |
| 33 | Theresa Buhk | 53 | Head | Agent | Germany |
| 34 | George Buhk | 31 | Son | Machinist | Germany |
| 35 | Axel G. Bihl | 53 | Head | Carpenter | Sweden |
| 36 | Judith Bihl | 49 | Wife | — | Illinois |
| 37 | Louis Julken | 55 | Head | Tailor | Sweden |
| 38 | Sigrid Julken | 56 | Wife | — | Sweden |
| 39 | Dorothy Thompson THIS PERSON | 29 | Daughter | Office Clerk | Illinois |
| 40 | Lena Sulkin | 79 | Head | — | Norway |
Related Census Records
Pedigree Summary
Dorothy
Gen 1 · 6 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)