MD
Mary Dwyer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary Dwyer across the 1920 and 1930 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 10-person household.
Age 15
b. ~1915
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | Dwyer |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| 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 | Newark City |
| Est. Birth Year | ~1915 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Dwyer | Spouse | — | 35 | ~1895 |
| Martin Dwyer | Head | — | 39 | ~1891 |
| James Dwyer | Son | — | 9 | ~1921 |
| Frances Dwyer | Daughter | — | 11 | ~1919 |
| Joseph Dwyer | Son | — | 10 | ~1920 |
| Margaret Dwyer | Daughter | — | 5 | ~1925 |
| John Dwyer | Son | — | 5 | ~1925 |
| Anna Dwyer | Daughter | — | 12 | ~1918 |
| Mary Dwyer | Daughter | — | 15 | ~1915 |
| Helen Dwyer | Daughter | — | 14 | ~1916 |
Census Appearances
1920
Essex, New …
Daughter, age 4
Essex, New Jersey · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dwyer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Daughter, age 15
Essex, New Jersey · implied b. ~1915 — 10 household members
| Surname | Dwyer |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| 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 Dwyer across 2 US Census years (1920 and 1930) in Essex, New Jersey, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dwyer
Daughter · 1930 · age 15 · b. ~1915 · New Jersey
★ You are viewing this record
Sibling
Helen Dwyer
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dwyer
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Dwyer
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dwyer
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Dwyer
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Dwyer
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Dwyer
Sibling · 1930 · age 10
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
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:newjerseycensus00reel1334:0739)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Martin Dwyer | 39 | Head | Freight Handler | Ireland |
| 52 | Mary E Dwyer | 35 | Wife | — | New Jersey |
| 53 | Mary A Dwyer THIS PERSON | 15 | Daughter | — | New Jersey |
| 54 | Helen Dwyer | 14 | Daughter | — | New Jersey |
| 55 | Anna Dwyer | 12 | Daughter | — | New Jersey |
| 56 | Frances Dwyer | 11 | Daughter | — | New Jersey |
| 57 | Joseph Dwyer | 10 | Son | — | New Jersey |
| 58 | James Dwyer | 9 | Son | — | New Jersey |
| 59 | Margaret Dwyer | 5 | Daughter | — | New Jersey |
| 60 | John Dwyer | 5 | Son | — | New Jersey |
| 61 | Sisto De Bane | 31 | Head | Laborer | Italy |
| 62 | Josephine De Bane | 25 | Wife | — | Italy |
| 63 | Lucille De Bane | 7 | Daughter | — | New Jersey |
| 64 | Andrew De Bane | 3 | Son | — | New Jersey |
| 65 | Catherine Loutta | 15 | Daughter | — | New Jersey |
| 66 | Joseph Cuveco | 31 | Head | Iron Worker | New Jersey |
| 67 | Pasquelina Cuveco | 30 | Wife | — | Italy |
| 68 | Rocco Cuveco | 9 | Son | — | New Jersey |
| 69 | Antonio Cuveco | 9 | Son | — | New Jersey |
| 70 | Lucille Cuveco | 8 | Daughter | — | New Jersey |
| 71 | Roselle Cuveco | 4 | Daughter | — | New Jersey |
| 72 | John Cuveco | 1 | Son | — | New Jersey |
| 73 | Vito Venieri | 60 | Head | Polisher | Italy |
| 74 | Amelia Venieri | 50 | Wife | — | Italy |
| 75 | Mary Venieri | 31 | Daughter | — | New Jersey |
| 76 | Lucille Venieri | 26 | Daughter | — | New Jersey |
| 77 | Leonard Cardille | 35 | Son-in-law | Carpenter | Italy |
| 78 | Josephine Cardille | 9 | Gr-daughter | — | New Jersey |
| 79 | Eleanor Catacuel | 7 | Gr-daughter | — | New Jersey |
| 80 | Thomas Murray | 24 | Head | Dyer | New Jersey |
| 81 | Margaret Murray | 23 | Wife | — | Virginia |
| 82 | Henry E. Rohlffs | 60 | Head | Director | New Jersey |
| 83 | Ida M. Rohlffs | 60 | Wife | — | Germany |
| 84 | Herbert E. Rohlffs | 35 | Son | — | New Jersey |
| 85 | William H. Sprigg | 60 | Head | Plasterer | New Jersey |
| 86 | Ida L. Sprigg | 55 | Wife | — | New Jersey |
| 87 | Mildred Sprigg | 25 | Daughter | Clerk | New Jersey |
| 88 | Evelyn (Ab.) Sprigg | 17 | Daughter | Actress | New Jersey |
| 89 | Otto C. Gerlach | 60 | Head | Salesman | New York |
| 90 | Lena M. Gerlach | 60 | Wife | — | New York |
| 91 | James T. Brady | 77 | Head | — | Ireland |
| 92 | Mary R. Brady | 70 | Wife | — | Ireland |
| 93 | James T. Jr. Brady | 48 | Son | Steam Fitter | New Jersey |
| 94 | Mary R. Brady | 34 | Daughter | Clerk | New Jersey |
| 95 | Edward Warner | 24 | Head | Chauffeur | New Jersey |
| 96 | Louise Warner | 22 | Wife | — | New Jersey |
| 97 | Margaret Warner | 2 | Daughter | — | New Jersey |
| 98 | Carmen Verdi | 37 | Head | Packer | Italy |
| 99 | Antoinette Verdi | 36 | Wife | — | Italy |
| 100 | Charles Verdi | 15 | Son | — | 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)