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Mary Delaney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, New Jersey
Our Model Tree links this Mary Delaney across the 1930 and 1940 US Censuses in Middlesex-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1905), then head of a 7-person household.
Age 35
b. ~1905
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, New Jersey |
| Surname | Delaney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jamesburg Boro |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2491 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Teacher |
| Township / Ward | Jamesburg Boro |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Daniel Delaney | Son | — | 31 | ~1909 |
| Mary Delaney | Spouse | — | 61 | ~1879 |
| Kathleen Delaney | Daughter | — | 22 | ~1918 |
| Ann Delaney | Daughter | — | 28 | ~1912 |
| Mary Delaney | Daughter | — | 35 | ~1905 |
| John Delaney | Head | — | 65 | ~1875 |
| Loretta Delaney | Daughter | — | 24 | ~1916 |
Census Appearances
1930
Middlesex, New …
Daughter, age 25
Middlesex, New Jersey · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Delaney |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Stenographer |
| Industry | Post Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Daughter, age 35
Middlesex-County, New Jersey · implied b. ~1905 — 7 household members
| Surname | Delaney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jamesburg Boro |
| 1935 Residence (County) | Middlesex |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2491 |
| Highest Grade | C 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 Delaney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Delaney
Daughter · 1940 · age 35 · b. ~1905 · New Jersey
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Sibling
Ann Delaney
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Delaney
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Delaney
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Delaney
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 — Middlesex-County, New Jersey
Open full size
1940 US Federal Census — Middlesex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02358-00959)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Evans | 74 | Head | — | New Jersey |
| 2 | Bertha D. Evans | 70 | Wife | — | New Jersey |
| 3 | Bernice Evans | 42 | Daughter | — | New Jersey |
| 4 | Arthur Palmer | 57 | Head | Carpenter | Mass. |
| 5 | Bessie Palmer | 56 | Wife | — | Mass. |
| 6 | Christopher Quinn | 56 | Head | — | New Jersey |
| 7 | Katherine Quinn | 46 | Wife | Agent | New Jersey |
| 8 | John J. Delaney | 65 | Head | — | New Jersey |
| 9 | Mary A. Delaney | 61 | Wife | — | New Jersey |
| 10 | Daniel Delaney | 31 | Son | Laborer | New Jersey |
| 11 | Mary Delaney THIS PERSON | 35 | Daughter | Teacher | New Jersey |
| 12 | Ann Delaney | 28 | Daughter | Teacher | New Jersey |
| 13 | Loretta Delaney | 24 | Daughter | Teacher | New Jersey |
| 14 | Kathleen Delaney | 22 | Daughter | — | New Jersey |
| 15 | John J. Larkin | 47 | Head | Priest | Mass. |
| 16 | Madeline Larkin | 38 | Sister | Priest | New Jersey |
| 17 | Ann Maloney | 39 | Housekeeper | Housekeeper | New Jersey |
| 18 | Peter Garibaldi | 47 | Head | — | Italy |
| 19 | Agatha Garibaldi | 47 | Wife | — | Italy |
| 20 | Louis Garibaldi | 25 | Son | Laborer | New Jersey |
| 21 | Arthur Garibaldi | 20 | Son | — | New Jersey |
| 22 | Frank Garibaldi | 17 | Son | — | New Jersey |
| 23 | Victoria Garibaldi | 14 | Daughter | — | New Jersey |
| 24 | Peter Garibaldi | 8 | Son | — | New Jersey |
| 25 | James Monahan | 55 | Head | — | New Jersey |
| 26 | Florence Monahan | 49 | Wife | — | New Jersey |
| 27 | John Smith | 79 | Lodger | — | New Jersey |
| 28 | Samuel Grace | 89 | Lodger | — | New Jersey |
| 29 | William Harrison | 82 | Lodger | — | New Jersey |
| 30 | Robert Bell | 91 | Lodger | — | New Jersey |
| 31 | William Butler | 28 | Lodger | — | New Jersey |
| 32 | Peter Sodrick | 53 | Lodger | — | New Jersey |
| 33 | Thomas Connerty | 65 | Head | Laborer | New Jersey |
| 34 | Marie Connerty | 50 | Wife | — | Ireland |
| 35 | Margaret Connerty | 15 | Daughter | — | New Jersey |
| 36 | William Day | 60 | Head | Laborer | New Jersey |
| 37 | Katherine Day | 39 | Wife | Truck Driver | New Jersey |
| 38 | Charles Day | 16 | Son | — | New Jersey |
| 39 | Barbara Day | 14 | Daughter | — | New Jersey |
| 40 | James Day | 12 | Son | — | New Jersey |
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)