RJ
Robert Jacobs — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bergen-County, New Jersey
Our Model Tree links this Robert Jacobs across the 1920, 1930 and 1940 US Censuses in Bergen-County, New Jersey (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bergen-County, New Jersey |
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Norwood Boro |
| 1935 Residence (County) | Bergen |
| Additional Details | |
| Occupation | Helper |
| Industry | Textile Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Helper |
| Township / Ward | Norwood Boro |
| Est. Birth Year | ~1917 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Jacobs | Son | — | 23 | ~1917 |
| Charles Jacobs | Head | — | 65 | ~1875 |
| Grace Jacobs | Daughter | — | 19 | ~1921 |
| Mary Jacobs | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Bergen, New …
Son, age 3
Bergen, New Jersey · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ohio |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Bergen, New …
Son, age 13
Bergen, New Jersey · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ohio |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Bergen-County, New …
Son, age 23
Bergen-County, New Jersey · implied b. ~1917 — 4 household members
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Norwood Boro |
| 1935 Residence (County) | Bergen |
| Occupation | Helper |
| Industry | Textile Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Charles Jacobs (~0.92 confidence) and father Charles Jacobs (~0.92 confidence) and mother Mary Jacobs (~0.92 confidence) and mother May Jacobs (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Jacobs
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Charles Jacobs
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Mary Jacobs
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
May Jacobs
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Jacobs
Son · 1940 · age 23 · b. ~1917 · New Jersey
★ You are viewing this record
Sibling
Grace Jacobs
Sibling · 1940 · age 19
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 — Bergen-County, New Jersey
Open full size
1940 US Federal Census — Bergen-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02312-00327)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | August Semendinger | 37 | Head | Carpenter | New Jersey |
| 2 | Ruth Semendinger | 34 | Wife | — | New Jersey |
| 3 | Paul Semendinger | 1 | Son | — | New Jersey |
| 4 | David Semendinger | 0 | Son | — | New Jersey |
| 5 | Amelia Semendinger | 70 | Mother | — | New York |
| 6 | Clarence C. Mills | 46 | Head | Mechanic | New Jersey |
| 7 | Agnes E. Mills | 37 | Wife | — | New Jersey |
| 8 | Dorothy A. Mills | 17 | Daughter | — | New Jersey |
| 9 | Clarence E. Mills | 15 | Son | — | New Jersey |
| 10 | Florence V. Mills | 12 | Daughter | — | New Jersey |
| 11 | Leslie Mills | 59 | Head | Painter | New Jersey |
| 12 | Hubert C. Payne | 53 | Head | Pipe Layer | Pennsylvania |
| 13 | Lillian B. Payne | 54 | Wife | — | Illinois |
| 14 | Stephen J. Connolly | 22 | Head | Truck Driver | New Jersey |
| 15 | Viola Connolly | 20 | Wife | Manager | New York |
| 16 | Betty J. Magee | 13 | Daughter | — | New York |
| 17 | Lois Magee | 12 | Daughter | — | New York |
| 18 | Victor Serti | 46 | Head | Bartender | Italy |
| 19 | Irene Serti | 51 | Wife | — | Italy |
| 20 | Margaret Macomb | 77 | Head | — | Eire |
| 21 | Edwin Macomb | 40 | Son | Collector | New York |
| 22 | Grace Macomb | 29 | Daughter-in-law | — | Georgia |
| 23 | Sabra Jane Macomb | 44 | Daughter | Clerk | New York |
| 24 | John C. Peters | 65 | Head | Head Houseman | England |
| 25 | Louise F. Peters | 61 | Wife | — | England |
| 26 | Hortense Fornell | 63 | Head | — | New Jersey |
| 27 | Doris Fornell | 22 | Daughter | Clerk | New Jersey |
| 28 | Rocklin O. Quackenbush | 32 | Head | Salesman | New Jersey |
| 29 | Alice S. Quackenbush | 30 | Wife | — | Massachusetts |
| 30 | Ralph Quackenbush | 7 | Son | — | New Jersey |
| 31 | Everett Quackenbush | 6 | Son | — | New Jersey |
| 32 | Charles Jacobs | 65 | Head | Electrician | Ohio |
| 33 | Mary E. Jacobs | 55 | Wife | — | New Jersey |
| 34 | Robert Jacobs THIS PERSON | 23 | Son | Helper | New Jersey |
| 35 | Grace Jacobs | 19 | Daughter | Typist | New Jersey |
| 36 | Frank Vieu | 61 | Head | Painter | New York |
| 37 | Mary A. Vieu | 63 | Wife | — | Germany |
| 38 | Herbert Friege | 46 | Head | Plumber | New York |
| 39 | Mary Friege | 63 | Sister | — | New York |
| 40 | Rose Friege | 42 | Sister | — | New York |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 4 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)