RJ
Robert Jacobs — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Robert Jacobs across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents David & Jacob — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Printer |
| Industry | Printing concern |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Printer |
| Township / Ward | New York |
| Est. Birth Year | ~1918 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Henry Jacobs | Son | — | 23 | ~1917 |
| Robert Jacobs | Son | — | 22 | ~1918 |
| Esther Jacobs | Spouse | — | 42 | ~1898 |
| Annette Jacobs | Daughter | — | 19 | ~1921 |
| Ruth Jacobs | Daughter | — | 18 | ~1922 |
| David Jacobs | Head | — | 45 | ~1895 |
| Claire Jacobs | Daughter | — | 15 | ~1925 |
Census Appearances
1920
New York, …
Other, age 1
New York, New York · implied b. ~1919 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Patient |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | United States |
| Mother's Birthplace | United States |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Other, age 11
New York, New York · implied b. ~1919 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | United States |
| Mother's Birthplace | United States |
| Can Read/Write | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 22
Kings-County, New York · implied b. ~1918 — 7 household members
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Kings |
| Occupation | Printer |
| Industry | Printing concern |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Robert Jacobs across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Jacobs (~0.92 confidence) and father Jacob Jacobs (~0.81 confidence) and mother Esther Jacobs (~0.92 confidence). The pedigree spans 2 generations with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
David Jacobs
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Jacob Jacobs
b. ~1850
Source father>father
● Household
· direct · ~0.81
Mother
Esther Jacobs
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Jacobs
Son · 1940 · age 22 · b. ~1918 · New York
★ You are viewing this record
Sibling
Annette Jacobs
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Jacobs
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Jacobs
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Jacobs
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02618-00168)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Shirley Gordo | 21 | Daughter | Salesgirl | New York |
| 42 | Rubin Stern | 41 | Head | Cutter | Russia |
| 43 | Rose Stern | 36 | Wife | — | Russia |
| 44 | Adele Stern | 17 | Daughter | Book-Keeper | New York |
| 45 | Sidney Stern | 15 | Son | — | New York |
| 46 | Allan Stern | 11 | Son | — | New York |
| 47 | Edwin Stern | 10 | Son | — | New York |
| 48 | Perry Stern | 4 | Son | — | New York |
| 49 | Carl Nelson | 36 | Head | Painter & Decorator | New York |
| 50 | Julia Nelson | 34 | Wife | — | New York |
| 51 | Helen Nelson | 14 | Daughter | — | New York |
| 52 | George Nelson | 13 | Son | — | New York |
| 53 | Edward Nelson | 11 | Son | — | New York |
| 54 | Carl Jr Nelson | 10 | Son | — | New York |
| 55 | Sam Ph. Sukon | 20 | Head | — | Russia |
| 56 | Joseph Sukon | 48 | Son | Milliner | Russia |
| 57 | Sam Sukon | 40 | Son | — | Russia |
| 58 | Nathan Sukon | 33 | Son | — | New York |
| 59 | Bernard Brown | 45 | Head | Carpenter | Poland |
| 60 | Clara Brown | 41 | Wife | — | Poland |
| 61 | Joseph Brown | 19 | Son | Delivery Boy | New York |
| 62 | Eugenia Brown | 16 | Daughter | — | Poland |
| 63 | Murray Brown | 13 | Son | — | New York |
| 64 | Frances Brown | 6 | Daughter | — | New York |
| 65 | Laura Brown | 3 | Daughter | — | New York |
| 66 | David Jacobs | 45 | Head | Trucker | New York |
| 67 | Esther Jacobs | 42 | Wife | — | Hungary |
| 68 | Henry Jacobs | 23 | Son | Office Work | New York |
| 69 | Robert Jacobs THIS PERSON | 22 | Son | Printer | New York |
| 70 | Annette Jacobs | 19 | Daughter | Milliner | New York |
| 71 | Ruth Jacobs | 18 | Daughter | Hemstitcher | Connecticut |
| 72 | Claire Jacobs | 15 | Daughter | — | Connecticut |
| 73 | Charles Sandberg | 39 | Head | Printing | New York |
| 74 | Anna Sandberg | 36 | Wife | — | Russia |
| 75 | Sylvia Sandberg | 14 | Daughter | — | New York |
| 76 | Morris Sandberg | 12 | Son | — | New York |
| 77 | Bernard Sandberg | 12 | Son | — | New York |
| 78 | Judith Sandberg | 8 | Daughter | — | New York |
| 79 | Murray Lederman | 33 | Head | Salesman | New York |
| 80 | Betty Lederman | 30 | Wife | — | New York |
Pedigree Summary
Robert + 4 siblings
Gen 1 · 2 parents
~0.92
Gen 2 · 1 grandparents
~0.81
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)