MD
Mary Donovan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Donovan across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents Mary & Maurice — first a daughter (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Donovan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | School teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Teacher |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1905 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Donovan | Daughter | — | 35 | ~1905 |
| Maurice Donovan | Head | — | 70 | ~1870 |
| Daniel Donovan | Son | — | 33 | ~1907 |
| Mary Donovan | Spouse | — | 72 | ~1868 |
Census Appearances
1920
Hudson, New …
Daughter, age 14
Hudson, New Jersey · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | Marguerite |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
Daughter, age 24
Hudson, New Jersey · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | England |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 35
Hudson-County, New Jersey · implied b. ~1905 — 4 household members
| Surname | Donovan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | School teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | H 4 |
| 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 Donovan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Donovan (~0.92 confidence) and father Maurice Donovan (~0.92 confidence) and father Henry Donovan (~0.92 confidence) and mother Sallie Donovan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Donovan
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
Maurice Donovan
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Henry Donovan
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Sallie Donovan
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Donovan
Daughter · 1940 · age 35 · b. ~1905 · New Jersey
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Sibling
Daniel Donovan
Sibling · 1940 · age 33
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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02403-00186)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theresa Guraniska | 15 | Daughter | — | New Jersey |
| 42 | Theodore Guraniska | 13 | Son | — | New Jersey |
| 43 | Martin Guraniska | 12 | Son | — | New Jersey |
| 44 | Edward Guraniska | 12 | Son | — | New Jersey |
| 45 | Genevieve Guraniska | 10 | Daughter | — | New Jersey |
| 46 | Andrew Burdulia | 52 | Head | Machinist | Hungary |
| 47 | Mary Burdulia | 47 | Wife | — | Hungary |
| 48 | Stanley Mikolajczyk | 61 | Head | Laborer | Poland |
| 49 | Blanche Mikolajczyk | 56 | Wife | — | Poland |
| 50 | Adele Mikolajczyk | 21 | Daughter | Factory Worker | New Jersey |
| 51 | Joseph Mikolajczyk | 19 | Son | Laborer | New Jersey |
| 52 | Stanley Bujak | 32 | Head | Laborer | New Jersey |
| 53 | Stella Bujak | 31 | Wife | — | New Jersey |
| 54 | Raymond Bujak | 10 | Son | — | New Jersey |
| 55 | Bernard Bujak | 7 | Son | — | New Jersey |
| 56 | Stevens P. Tucker | 63 | Head | Mill-Wright | New Jersey |
| 57 | Evelyn A. Tucker | 62 | Wife | — | New Jersey |
| 58 | Ellen Muldoon | 52 | Head | — | New Jersey |
| 59 | Ella R. Muldoon | 47 | Niece | Clerk | New Jersey |
| 60 | Florence M. Muldoon | 44 | Niece | Purchasing Agent | New Jersey |
| 61 | Mary Fitzpatrick | 73 | Head | — | Eire |
| 62 | Mary Fitzpatrick | 41 | Daughter | Time Keeper | New York |
| 63 | Eugene Fitzpatrick | 39 | Son | Book-Keeper | New York |
| 64 | Catherine Fitzpatrick | 36 | Daughter | Paint-Maker | New York |
| 65 | Joseph Fitzpatrick | 24 | Son | Fireman | New York |
| 66 | William Gillard | 45 | Head | — | New Jersey |
| 67 | Julia Gillard | 41 | Wife | — | New Jersey |
| 68 | Maurice Donovan | 70 | Head | — | Eire |
| 69 | Mary Donovan | 72 | Wife | — | Eire |
| 70 | Mary Donovan THIS PERSON | 35 | Daughter | School Teacher | New Jersey |
| 71 | Daniel Donovan | 33 | Son | Clerk | New Jersey |
| 72 | Agnes Reilly | 63 | Head | — | New Jersey |
| 73 | Charles Reilly | 42 | Son | Brake-Man | New Jersey |
| 74 | John Reilly | 40 | Son | Laborer | New Jersey |
| 75 | Bernard Reilly | 33 | Son | — | New Jersey |
| 76 | Agnes Reilly | 31 | Daughter | Machinist | New Jersey |
| 77 | Edward Reilly | 29 | Son | Employee | New Jersey |
| 78 | Alice Reilly | 27 | Daughter | Packer | New Jersey |
| 79 | Margaret Reilly | 7 | Grand dau | — | New Jersey |
Related Census Records
Pedigree Summary
Mary + 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)