JZ
John Zimmerman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this John Zimmerman across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents John & Catherine — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Laborer |
| Industry | Meat packer |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 498 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Laborer |
| Township / Ward | Newark City |
| Est. Birth Year | ~1913 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Zimmerman | Daughter | — | 4 | ~1936 |
| John Zimmerman | Head | — | 27 | ~1913 |
| John Zimmerman | Son | — | 6 | ~1934 |
| Mary Zimmerman | Spouse | — | 24 | ~1916 |
Census Appearances
1920
Union, New …
Son, age 6
Union, New Jersey · implied b. ~1914 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Union, New …
Son, age 16
Union, New Jersey · implied b. ~1914 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmermann |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Occupation | Labourer |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Head, age 27
Essex-County, New Jersey · implied b. ~1913 — 4 household members
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Occupation | Laborer |
| Industry | Meat packer |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 498 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 John Zimmerman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Zimmerman (~0.92 confidence) and mother Catherine Zimmerman (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Zimmerman
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Catherine Zimmerman
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Zimmerman
Head · 1940 · age 27 · b. ~1913 · New Jersey
★ 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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02422-00067)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anthony Chudyk | 6 | Son | — | New Jersey |
| 2 | Ann Marie Chudyk | 4 | Daughter | — | New Jersey |
| 3 | Benjamin Ficzko | 24 | Lodger | Grinder | New Jersey |
| 4 | Frank Krysko | 22 | Head | Packer | New Jersey |
| 5 | Marie Krysko | 21 | Wife | — | New Jersey |
| 6 | Frank Zych | 27 | Head | Cutter | New Hampshire |
| 7 | Josephine Zych | 22 | Wife | — | New Hampshire |
| 8 | Mattie Awjaworski | 18 | Bro-law | Trimmer | New Hampshire |
| 9 | John Zimmerman THIS PERSON | 27 | Head | Laborer | New Jersey |
| 10 | Mary Zimmerman | 24 | Wife | — | New Jersey |
| 11 | John Jr. Zimmerman | 6 | Son | — | New Jersey |
| 12 | Mary Zimmerman | 4 | Daughter | — | New Jersey |
| 13 | Joseph Pshywora | 26 | Head | Machine Operator | New Jersey |
| 14 | Adelle Pshywora | 23 | Wife | — | New Jersey |
| 15 | Barbara Pshywora | 0 | Daughter | — | New Jersey |
| 16 | Joseph Kwecko | 51 | Head | Polisher | Russia |
| 17 | Anna Kwecko | 47 | Wife | — | Russia |
| 18 | Joseph Jr. Kwecko | 15 | Son | — | New Jersey |
| 19 | Mary Dolores Kwecko | 9 | Daughter | — | New Jersey |
| 20 | Anthony Kondroski | 54 | Head | — | Poland |
| 21 | Eva Kondroski | 45 | Wife | Spreader | Poland |
| 22 | Carl Kondroski | 21 | Son | Laborer | New Jersey |
| 23 | Michael Kondroski | 20 | Son | Laborer | New Jersey |
| 24 | Nicholas Kondroski | 19 | Son | Laborer | New Jersey |
| 25 | Casimer Kondroski | 9 | Son | — | New Jersey |
| 26 | William Barchowski | 42 | Head | Bartender | Poland |
| 27 | Catherine Barchowski | 36 | Wife | — | New Jersey |
| 28 | Walter Barchowski | 15 | Son | — | New Jersey |
| 29 | Edward Barchowski | 10 | Son | — | New Jersey |
| 30 | Theodore Barchowski | 8 | Son | — | New Jersey |
| 31 | Mary Kobiere | 36 | Head | — | Poland |
| 32 | Adam Kobiere | 24 | Son | Laborer | New Jersey |
| 33 | Joseph Kobiere | 22 | Son | Laborer | New Jersey |
| 34 | Benjamin Kobiere | 19 | Son | New Worker | New Jersey |
| 35 | Johanna Horaneck | 61 | Head | General Housework | New York |
| 36 | Thomas Poskawitz | 62 | Head | Laborer | Poland |
| 37 | Pauline Poskawitz | 62 | Wife | — | Poland |
| 38 | Walter August | 57 | Head | Laborer | Poland |
| 39 | John Moschul | 20 | Lodger | Laborer | Poland |
| 40 | Joseph Gruz | 57 | Head | Laborer | Slovakia |
Pedigree Summary
John
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)