MC
Mary Cooper — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary Cooper across the 1920, 1930 and 1940 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 6-person household.
Age 45
b. ~1885
Female
Spouse
Born: New Jersey
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 18 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Montclair Town |
| Est. Birth Year | ~1885 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cooper | Daughter | — | 12 | ~1918 |
| William Cooper | Head | — | 48 | ~1882 |
| James Cooper | Son | — | 17 | ~1913 |
| William Cooper | Son | — | 20 | ~1910 |
| John Cooper | Son | — | 15 | ~1915 |
| Mary Cooper | Spouse | — | 45 | ~1885 |
Census Appearances
1920
Essex, New …
Spouse, age 34
Essex, New Jersey · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Connecticut |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Spouse, age 45
Essex, New Jersey · implied b. ~1885 — 6 household members
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 18 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Spouse, age 55
Essex-County, New Jersey · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Bloomfield Town |
| 1935 Residence (County) | Essex |
| Highest Grade | H 3 |
| 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 Mary Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cooper
Spouse · 1930 · age 45 · b. ~1885 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Essex, New Jersey
Open full size
1930 US Federal Census — Essex, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1383:1047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Louis Kuhmichel | 50 | Head | Proprietor | New Jersey |
| 52 | Anna Kuhmichel | 44 | Wife | — | New Jersey |
| 53 | Ellen Kuhmichel | 17 | Daughter | — | New Jersey |
| 54 | Louis Kuhmichel | 15 | Son | — | New Jersey |
| 55 | Florence Kuhmichel | 7 | Daughter | — | New Jersey |
| 56 | Charles H Cordes | 41 | Head | Salesman | New Jersey |
| 57 | Elizabeth Cordes | 38 | Wife | — | New Jersey |
| 58 | Kenneth E Cordes | 10 | Son | — | New Jersey |
| 59 | James Reid | 40 | Head | — | New Jersey |
| 60 | Mary Reid | 40 | Wife | — | New Jersey |
| 61 | Mary Sallon | 40 | Head | — | New Jersey |
| 62 | Anna Sallon | 20 | Daughter | House Work | New Jersey |
| 63 | Agnes Sallon | 17 | Daughter | — | New Jersey |
| 64 | George Sallon | 13 | Son | — | New Jersey |
| 65 | Elizabeth Bond | 60 | Head | — | New Jersey |
| 66 | James Bond | 35 | Son | Laborer | New Jersey |
| 67 | William Bond | 28 | Son | Laborer | New Jersey |
| 68 | William Cooper | 48 | Head | Laborer | New Jersey |
| 69 | Mary Cooper THIS PERSON | 45 | Wife | — | New Jersey |
| 70 | William Cooper | 20 | Son | — | New Jersey |
| 71 | James Cooper | 17 | Son | — | New Jersey |
| 72 | John Cooper | 15 | Son | — | New Jersey |
| 73 | Mary Cooper | 12 | Daughter | — | New Jersey |
| 74 | Nathan Ludlow | 47 | Head | Laborer | New Jersey |
| 75 | Mary Ludlow | 44 | Wife | — | New Jersey |
| 76 | Raymond Ludlow | 24 | Son | Laborer | New Jersey |
| 77 | Ruth Ludlow | 15 | Daughter | — | New Jersey |
| 78 | Alice Ludlow | 13 | Daughter | — | New Jersey |
| 79 | Mary Ludlow | 11 | Daughter | — | New Jersey |
| 80 | Nathan Ludlow | 9 | Son | — | New Jersey |
| 81 | Edgar Ludlow | 7 | Son | — | New Jersey |
| 82 | James Ludlow | 5 | Son | — | New Jersey |
| 83 | Robert Ludlow | 4 | Son | — | New Jersey |
| 84 | William Garrison | 46 | Head | Laborer | New Jersey |
| 85 | Elizabeth Garrison | 44 | Wife | — | New Jersey |
| 86 | William Garrison | 19 | Son | — | New Jersey |
| 87 | Joseph Burns | 44 | Head | Laborer | New Jersey |
| 88 | Anna Burns | 42 | Wife | — | New Jersey |
| 89 | Alice Burns | 18 | Daughter | — | New Jersey |
| 90 | Joseph Burns | 15 | Son | — | New Jersey |
| 91 | Elizabeth Burns | 12 | Daughter | — | New Jersey |
| 92 | John Burns | 10 | Son | — | New Jersey |
| 93 | William Burns | 8 | Son | — | New Jersey |
| 94 | Robert Burns | 6 | Son | — | New Jersey |
| 95 | James Burns | 4 | Son | — | New Jersey |
| 96 | Nellie S Sumner | 76 | Head | — | New Jersey |
| 97 | Joseph Burns | 21 | Head | Laborer | New Jersey |
| 98 | Alice Burns | 18 | Wife | — | New Jersey |
| 99 | Joseph Burns | 3 | Son | — | New Jersey |
| 100 | Margaret Burns | 1 | Daughter | — | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)