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Joseph Jacobs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Joseph Jacobs across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 5-person household.
Age 52
b. ~1888
Male
Head
Born: Lithuania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Lithuania |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Heater |
| Industry | Forge shop |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 520 |
| Highest Grade | No |
| 1935 Residence | Same House |
| Birth Country | Lithuania |
| Birthplace (normalized) | lithuania |
| Occupation | Heater |
| Township / Ward | Chicago |
| Est. Birth Year | ~1888 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Valeria Bernot | Other | — | 14 | ~1926 |
| Anna Jacobs | Spouse | — | 48 | ~1892 |
| Joseph Jacobs | Head | — | 52 | ~1888 |
| Albert Jacobs | Son | — | 23 | ~1917 |
| Stanley Bernot | Other | — | 22 | ~1918 |
Census Appearances
1920
Hartford, Connecticut
Head, age 29
Hartford, Connecticut · implied b. ~1891 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Lithuania |
| Year of Immigration | 1906 |
| Naturalization Status | Alien |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Lithuanian |
| Home Owned/Rented | R |
| Birth Country | Lithuania |
| Birthplace (normalized) | lithuania |
1930
Cook, Illinois
Head, age 40
Cook, Illinois · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Lithuania |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 22 |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Occupation | Fireman |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Lithuanian |
| Home Owned/Rented | O |
| Home Value / Rent | 13000 |
| Birth Country | Lithuania |
| Birthplace (normalized) | lithuania |
1940
Cook-County, Illinois
Head, age 52
Cook-County, Illinois · implied b. ~1888 — 5 household members
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Lithuania |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Heater |
| Industry | Forge shop |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 520 |
| Highest Grade | No |
| 1935 Residence | Same House |
| Birth Country | Lithuania |
| Birthplace (normalized) | lithuania |
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 Joseph Jacobs across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Jacobs
Head · 1940 · age 52 · b. ~1888 · 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-t0627-00946-00278)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Myra Lalberty | Talberty | 18 | daughter | Sheet Packer | Illinois |
| 2 | Kenneth Lalberty | Talberty | 15 | son | — | Illinois |
| 3 | Karl Lalberty | Talberty | 13 | son | — | Illinois |
| 4 | James Tice | 43 | Head | Maintenance Man | Illinois |
| 5 | Catherine Tice | 39 | Wife | — | Illinois |
| 6 | Lillian Tice | 15 | daughter | New Worker | Illinois |
| 7 | Florence Tice | 12 | daughter | — | Illinois |
| 8 | Joseph Jacobs THIS PERSON | 52 | Head | Heater | Lithuania |
| 9 | Anna Jacobs | 48 | Wife | — | Lithuania |
| 10 | Albert Jacobs | 23 | son | Machinist | Penn. |
| 11 | Stanley Bernot | 22 | nephew | Lawman | Penn. |
| 12 | Valeria Bernot | 14 | niece | — | Penn. |
| 13 | Joseph Stones | 45 | Head | Chef | Lithuania |
| 14 | Helen Stones | 47 | Wife | Cashier | Lithuania |
| 15 | Violet Stones | 20 | daughter | Typist | Illinois |
| 16 | Dorothy Stones | 18 | daughter | Typist | Illinois |
| 17 | Frank Mikutis | 50 | Head | Night Watchman | Lithuania |
| 18 | Sophie Mikutis | 55 | Wife | — | Lithuania |
| 19 | Frank Mikutis | 25 | son | Meat Trimmer | Illinois |
| 20 | Benny Mikutis | 22 | son | Meat Packer | Illinois |
| 21 | Charles Szvilas | 52 | lodger | Meat Grinder | Lithuania |
| 22 | Frank Pionkey | 52 | Head | Truck Loader | Illinois |
| 23 | Catherine Pionkey | 55 | Wife | — | Illinois |
| 24 | Violet Pionkey | 28 | daughter | Telephone Operator | Illinois |
| 25 | Frank Pionkey | 25 | son | Trucker | Illinois |
| 26 | John Yunkus | 62 | Head | Watchman | Lithuania |
| 27 | Elizabeth Yunkus | 48 | Wife | — | Lithuania |
| 28 | Matthew Yunkus | 25 | son | Paper Cutter | Illinois |
| 29 | Casimir Yunkus | 19 | son | Elevator Operator | Illinois |
| 30 | Emil Spath | 61 | Head | Elevator Guard | Illinois |
| 31 | Lena Spath | 57 | Wife | — | Illinois |
| 32 | John Bracas | 45 | Head | Lithographer | Lithuania |
| 33 | Julia Bracas | 43 | Wife | — | Lithuania |
| 34 | Joseph Bracas | 22 | son | Transformer Assembler | Illinois |
| 35 | Bernice Bracas | 18 | daughter | Magazine Wrapper | Illinois |
| 36 | Harry Mazel | 30 | Head | Bacon Slicer | Illinois |
| 37 | Josephine Mazel | 29 | Wife | Single Needle Operator | Illinois |
| 38 | Jim F. Smith | 57 | Head | Chemist | Illinois |
| 39 | Ella Smith | 44 | Wife | Teacher | Illinois |
| 40 | Ronald Smith | 27 | son | Chemist Helper | Illinois |
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)