MD
Mary Donohue — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Donohue across the 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Donohue |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Nutley town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 936 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Stenographer |
| Township / Ward | Nutley Town |
| 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Donohue | Spouse | — | 69 | ~1871 |
| Vincent Donohue | Son | — | 25 | ~1915 |
| Mary Donohue | Daughter | — | 22 | ~1918 |
| William Donohue | Son | — | 31 | ~1909 |
| Edgar Donohue | Son | — | 30 | ~1910 |
| Irene Donohue | Daughter | — | 26 | ~1914 |
| Patrick Donohue | Head | — | 63 | ~1877 |
Census Appearances
1930
Essex, New …
Daughter, age 12
Essex, New Jersey · implied b. ~1918 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donohue |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Daughter, age 22
Essex-County, New Jersey · implied b. ~1918 — 7 household members
| Surname | Donohue |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Nutley town |
| 1935 Residence (County) | Essex |
| Occupation | Stenographer |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 936 |
| Highest Grade | H 4 |
| 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 Mary Donohue across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Donohue
Daughter · 1940 · age 22 · b. ~1918 · New Jersey
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Sibling
Edgar Donohue
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Donohue
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Donohue
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Donohue
Sibling · 1940 · age 31
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 — 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-t0627-02338-00365)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katherine Foster | 42 | Wife | — | New Jersey |
| 2 | Katherine R. Foster | 14 | Daughter | Teacher | New Jersey |
| 3 | Frances Foster | 14 | Daughter | — | New Jersey |
| 4 | Clarence B. Hayward | 51 | Head | Mechanical Engineer | Connecticut |
| 5 | Annabelle Hayward | 53 | Wife | — | Connecticut |
| 6 | Douglas L. Hayward | 23 | Son | — | Connecticut |
| 7 | Lois E. Hayward | 20 | Daughter | — | Pennsylvania |
| 8 | Donovan Ellis | 45 | Head | Salesman | New York |
| 9 | Beatrice Ellis | 46 | Wife | — | Pennsylvania |
| 10 | Donovan Jr. Ellis | 21 | Son | — | New Jersey |
| 11 | Lothrop Ellis | 19 | Son | — | New Jersey |
| 12 | Mary Ellis | 16 | Daughter | — | New Jersey |
| 13 | Joseph N. Day | 36 | Head | Sanitary Inspector | New Jersey |
| 14 | Jennie S. Day | 34 | Wife | — | New Jersey |
| 15 | Joseph N. Jr. Day | 15 | Son | — | New Jersey |
| 16 | Edward A. Day | 6 | Son | — | New Jersey |
| 17 | Nelson A. Day | 73 | Father | — | New Jersey |
| 18 | Patrick J. Donohue | 63 | Head | Secretary | New York |
| 19 | Mary A. Donohue | 69 | Wife | — | Pennsylvania |
| 20 | William R. Donohue | 31 | Son | Salesman | New Jersey |
| 21 | Edgar A. Donohue | 30 | Son | Law Clerk | New York |
| 22 | Irene A. Donohue | 26 | Daughter | Clerical | New Jersey |
| 23 | Vincent Donohue | 25 | Son | Clerical | New Jersey |
| 24 | Mary J. Donohue THIS PERSON | 22 | Daughter | Stenographer | New Jersey |
| 25 | Annie Carroll | 72 | Head | — | New York |
| 26 | Nellie Buckley | 62 | Lodger | Paper Sorter | New Jersey |
| 27 | Robert W. Harlow | 38 | Head | Plumbing | New Jersey |
| 28 | Bessie B. Harlow | 31 | Wife | — | Pennsylvania |
| 29 | Robert Harlow | 8 | Son | — | New Jersey |
| 30 | Grant L. Lynn | 42 | Head | Chemical | New York |
| 31 | Helen E. Lynn | 40 | Wife | Waitress | Connecticut |
| 32 | Rose E. Lynn | 16 | Daughter | — | Ohio |
| 33 | Clarence A. Lynn | 13 | Son | — | New Jersey |
| 34 | G. Leslie Lynn | 11 | Son | — | New Jersey |
| 35 | Henry T. Lynn | 29 | Brother | Clerical | New Jersey |
| 36 | Albert E. Katzman | 68 | Head | Linotypist | Canada English |
| 37 | Margaret Katzman | 62 | Wife | — | New York |
| 38 | James Bragger | 39 | Head | Chemist | Canada English |
| 39 | Frances Bragger | 36 | Wife | — | Pennsylvania |
| 40 | Frances Bragger | 7 | Daughter | — | Pennsylvania |
Related Census Records
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)