MZ
Mary Zimmerman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Zimmerman across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1865), then head of a 3-person household.
Age 75
b. ~1865
Female
Spouse
Born: Switzerland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Zimmerman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Naturalization Status | Alien |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
| Township / Ward | Newark |
| Est. Birth Year | ~1865 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Max Zimmerman | Head | — | 82 | ~1858 |
| William Zimmerman | Son | — | 28 | ~1912 |
| Mary Zimmerman | Spouse | — | 75 | ~1865 |
Census Appearances
1920
Essex, New …
Spouse, age 55
Essex, New Jersey · implied b. ~1865 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Year of Immigration | 1871 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Switzerland |
| Year of Naturalization | 1888 |
| Birthplace (normalized) | switzerland |
1930
Essex, New …
Spouse, age 65
Essex, New Jersey · implied b. ~1865 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1869 |
| Age at First Marriage | 20 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
1940
Essex-County, New …
Spouse, age 75
Essex-County, New Jersey · implied b. ~1865 — 3 household members
| Surname | Zimmerman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Naturalization Status | Alien |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
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 Mary Zimmerman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Zimmerman
Spouse · 1940 · age 75 · b. ~1865 · New Jersey
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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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-02426-00329)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ann Potocnie | 3 | Daughter | — | Pennsylvania |
| 2 | Max Zimmerman | 82 | Head | — | Germany |
| 3 | Mary Zimmerman THIS PERSON | 75 | Wife | — | Switzerland |
| 4 | William Zimmerman | 28 | Son | Machinist | New Jersey |
| 5 | Frank Chamberlain | 32 | Head | Button Moulder | New York |
| 6 | Thelma Chamberlain | 26 | Wife | — | New Jersey |
| 7 | Mary Schmidt | 32 | Head | Housekeeper | Pennsylvania |
| 8 | Ethel Dotey | 13 | Daughter | — | New Jersey |
| 9 | George Rose | 62 | Head | Watchman | New Jersey |
| 10 | Lillian Rose | 55 | Wife | — | Pennsylvania |
| 11 | Roland Rose | 26 | Son | Bar Tender | New Jersey |
| 12 | Louise Rose | 21 | Daughter-in-law | — | S. Carolina |
| 13 | Gordon Rose | 22 | Son | Receiving Clerk | New Jersey |
| 14 | Max Simms | 49 | Head | Laborer | Georgia |
| 15 | Rosabelle Simms | 44 | Wife | — | Georgia |
| 16 | Como Merlin Collins | 58 | Head | Laborer | Georgia |
| 17 | Frances Collins | 42 | Wife | — | Georgia |
| 18 | Rosalyn Downs | 12 | Cousin-in-law | — | Georgia |
| 19 | Oscar Mott | 54 | Head | Wire Weaver | New Jersey |
| 20 | Catherine Dougherty | 52 | Head | Seamstress | New Jersey |
| 21 | Lester Betz | 31 | Head | Finisher | Connecticut |
| 22 | Josephine Betz | 30 | Wife | — | Pennsylvania |
| 23 | Loretta Betz | 4 | Daughter | — | New Jersey |
| 24 | Josephine Betz | 1 | Daughter | — | New Jersey |
| 25 | Thomas H. Simmons | 51 | Head | Handy Man | New Jersey |
| 26 | Elsa Simmons | 50 | Wife | — | New York |
| 27 | Frances Simmons | 26 | Daughter | — | New Jersey |
| 28 | Anne Simmons | 22 | Daughter | Tester | New Jersey |
| 29 | Thomas Jr. Simmons | 20 | Son | Handy Man | New Jersey |
| 30 | Audrey Simmons | 18 | Daughter | — | New Jersey |
| 31 | Dolores Simmons | 13 | Daughter | — | New Jersey |
| 32 | Frank Flaherty | 33 | Head | Tester | New Jersey |
| 33 | Elizabeth Hettle | 54 | Mother | — | England |
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)