CJ
Charles Jacobs — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Charles Jacobs across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Ida & Isaac — first a head (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Jacobs |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Broker |
| Industry | Brokerage |
| Class of Worker | E |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same Place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Broker |
| Township / Ward | Chicago |
| Est. Birth Year | ~1900 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Charles Jacobs | Head | — | 40 | ~1900 |
| Harris Jacobs | Son | — | 5 | ~1935 |
| Ethel Jacobs | Spouse | — | 37 | ~1903 |
| Lillian Rush | Other | — | 23 | ~1917 |
Census Appearances
1920
Cook, Illinois
Son, age 19
Cook, Illinois · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Charles |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | England |
| Year of Immigration | 1906 |
| Naturalization Status | Alien |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | clerk office |
| Industry | clothing |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Yiddish |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Cook, Illinois
Head, age 30
Cook, Illinois · implied b. ~1900 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1908 |
| Age at First Marriage | 23 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Glazer |
| Industry | Own Shop |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 75 |
| Radio Set | R |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Cook-County, Illinois
Head, age 40
Cook-County, Illinois · implied b. ~1900 — 4 household members
| Surname | Jacobs |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | First papers filed |
| Occupation | Broker |
| Industry | Brokerage |
| Class of Worker | E |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same Place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Charles Jacobs across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ida Jacobs (~0.92 confidence) and father Isaac Jacobs (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ida Jacobs
b. ~1854
Source mother
● Household
· direct · ~0.92
Father
Isaac Jacobs
b. ~1854
Source father
● Household
· direct · ~0.92
This person
Anchor record
Charles Jacobs
Head · 1940 · age 40 · b. ~1900 · 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-t0627-01013-00007)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John O. Sheldon | 42 | Head | Salesman | Illinois |
| 2 | Mary Sheldon | 39 | Wife | — | New York |
| 3 | Patricia Sheldon | 14 | Daughter | — | Illinois |
| 4 | Pamela Sheldon | 9 | Daughter | — | Illinois |
| 5 | John Hovanec | 63 | Houseman | Houseman | Austria |
| 6 | Chris C. Joseph | 63 | Head | Sawyer | Illinois |
| 7 | Flora H. Joseph | 41 | Wife | — | Arkansas |
| 8 | Georgia Joseph | 38 | Daughter | Christian Practitioner | Washington |
| 9 | Rose Kyas | 63 | Head | — | Illinois |
| 10 | Henry Kyas | 28 | Son | Office Clerk | Illinois |
| 11 | Charles Kyas | 29 | Son | Salesman | Illinois |
| 12 | Agnes Kyas | 28 | Daughter in Law | Stenographer | Illinois |
| 13 | Jennie M. Williams | 75 | Head | — | Ohio |
| 14 | Jennie C. Colvin | 48 | Niece | Typist | Illinois |
| 15 | Paul Korohak | 54 | Head | Manager | Illinois |
| 16 | Floris Korohak | 55 | Wife | — | England |
| 17 | Jack Korohak | 24 | Son | Clerk | Illinois |
| 18 | Jane Korohak | 20 | Daughter | Clerk | Illinois |
| 19 | Ben Beltzer | 45 | Head | Salesman | Missouri |
| 20 | Rose Beltzer | 74 | Mother | — | Austria |
| 21 | Henry Vergauren | 40 | Head | Janitor | Belgium |
| 22 | Mary Vergauren | 40 | Wife | — | Belgium |
| 23 | Alice Vergauren | 19 | Daughter | — | Belgium |
| 24 | Albert Matheson | 39 | Head | Sawyer | Russia |
| 25 | Max Matheson | 20 | Brother | New Worker | Illinois |
| 26 | Abe Matheson | 40 | Brother | Medical Doctor | Russia |
| 27 | Ida Matheson | 33 | Sister | Sales Lady | Russia |
| 28 | Arnold Matheson | 65 | Father | Manager | Russia |
| 29 | Sarah Matheson | 65 | Mother | — | Russia |
| 30 | Lester Braude | 44 | Head | Owner | Illinois |
| 31 | Rose Braude | 41 | Wife | — | Germany |
| 32 | Norma Braude | 20 | Daughter | Secretary | Illinois |
| 33 | Clarence Braude | 16 | Son | — | Illinois |
| 34 | Charles Jacobs THIS PERSON | 40 | Head | Broker | England |
| 35 | Ethel Jacobs | 37 | Wife | — | Illinois |
| 36 | Harris C. Jacobs | 5 | Son | — | Illinois |
| 37 | Lillian Rush | 23 | Servant | Maid | Illinois |
| 38 | V. P. Sespinasse | 60 | Head | Medical Doctor | Illinois |
| 39 | Anna Sespinasse | 50 | Wife | — | New York |
| 40 | Victoria Sespinasse | 21 | Daughter | — | Illinois |
Pedigree Summary
Charles
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)