JD
John Dwyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this John Dwyer across the 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Dwyer |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth city |
| 1935 Residence (County) | Union |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1927 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Dwyer | Daughter | — | 15 | ~1925 |
| Margaret Dwyer | Daughter | — | 17 | ~1923 |
| Mary Dwyer | Daughter | — | 20 | ~1920 |
| Jeremiah Dwyer | Head | — | 46 | ~1894 |
| James Dwyer | Son | — | 6 | ~1934 |
| Anna Dwyer | Daughter | — | 18 | ~1922 |
| John Dwyer | Son | — | 13 | ~1927 |
| Adelaide Dwyer | Daughter | — | 11 | ~1929 |
| Joseph Dwyer | Son | — | 3 | ~1937 |
| Jeremiah Dwyer | Son | — | 8 | ~1932 |
| Mary Dwyer | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Union, New …
Son, age 3
Union, New Jersey · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dwyer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 13
Union-County, New Jersey · implied b. ~1927 — 11 household members
| Surname | Dwyer |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth city |
| 1935 Residence (County) | Union |
| Highest Grade | 8 |
| 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 John Dwyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Dwyer
Son · 1940 · age 13 · b. ~1927 · New Jersey
★ You are viewing this record
Sibling
Mary Dwyer
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dwyer
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Dwyer
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Dwyer
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeremiah Dwyer
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Dwyer
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adelaide Dwyer
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Dwyer
Sibling · 1940 · age 15
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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02400-00299)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Jr. Condron | 1 | Son | — | New Jersey |
| 42 | Steven Brady | 36 | Head | Pipefitter | New Jersey |
| 43 | Florence Brady | 37 | Wife | — | New Jersey |
| 44 | Walter S. Brady | 11 | Son | — | New Jersey |
| 45 | Herbert C. Ryfall | 28 | Head | Complainthand | New Jersey |
| 46 | Estelle M. Ryfall | 25 | Wife | — | New Jersey |
| 47 | Charles H. Ryfall | 3 | Son | — | New Jersey |
| 48 | Jeremiah J. Dwyer | 46 | Head | Clerk | New Jersey |
| 49 | Mary F. Dwyer | 46 | Wife | — | New Jersey |
| 50 | Mary J. Dwyer | 20 | Daughter | — | New Jersey |
| 51 | Anna R. Dwyer | 18 | Daughter | Typist | New Jersey |
| 52 | Margaret E. Dwyer | 17 | Daughter | Clerk | New Jersey |
| 53 | Catherine G. Dwyer | 15 | Daughter | — | New Jersey |
| 54 | John J. Dwyer THIS PERSON | 13 | Son | — | New Jersey |
| 55 | Adelaide Dwyer | 11 | Daughter | — | New Jersey |
| 56 | Jeremiah Dwyer | 8 | Son | — | New Jersey |
| 57 | James Dwyer | 6 | Son | — | New Jersey |
| 58 | Joseph F. Dwyer | 3 | Son | — | New Jersey |
| 59 | Louis Blatt | 61 | Head | Grocery | Russia |
| 60 | Augustave Blatt | 52 | Wife | Grocery | Russia |
| 61 | Anna Blatt | 32 | Daughter | — | New Jersey |
| 62 | Rose Blatt | 30 | Daughter | Stenographer | New Jersey |
| 63 | David Blatt | 29 | Son | M.D. Doctor | New Jersey |
| 64 | Ida Blatt | 26 | Daughter | Stenographer | New Jersey |
| 65 | Bernard Blatt | 18 | Son | — | New Jersey |
| 66 | Frank Ustruck | 44 | Head | Machinist | New Jersey |
| 67 | Frances Ustruck | 40 | Wife | — | Hungary |
| 68 | Aloysius F. Ustruck | 22 | Son | Chauffeur | New Jersey |
| 69 | Arthur E. Stuckey | 58 | Head | Tool Maker | New Jersey |
| 70 | Tessa Stuckey | 58 | Wife | — | New York |
| 71 | Michael J. Murray | 39 | Son-in-law | Postal Clerk | New Jersey |
| 72 | Ruth D. Murray | 30 | Daughter | — | New Jersey |
| 73 | Gail R. Murray | 0 | Granddaughter | — | New Jersey |
| 74 | Philip L. Roester | 60 | Head | Machinist | Germany |
| 75 | Regina Roester | 48 | Wife | — | Germany |
| 76 | Martha Schantz | 44 | Cousin | — | Denmark |
| 77 | Mary Zitaveckas | 50 | Head | — | Lithuania |
| 78 | Stephen A. Zitaveckas | 30 | Son | Clerk | New Jersey |
| 79 | Alphonse J. Zitaveckas | 22 | Son | Salesman | New Jersey |
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)