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John Mcdermott — 1930 US Census Record
Model Tree available1930 United States Federal Census · Hudson, New Jersey
Our Model Tree links this John Mcdermott across the 1920, 1930 and 1940 US Censuses in Hudson, New Jersey (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1918), then head of a 5-person household.
Age 12
b. ~1918
Male
Son
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Hudson, New Jersey |
| Surname | McDermott |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| 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 | Jersey City City |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Helen Mcdermott | Daughter | — | 17 | ~1913 |
| James Mcdermott | Head | — | 49 | ~1881 |
| Frank Kaly | Other | — | 52 | ~1878 |
| John Mcdermott | Son | — | 12 | ~1918 |
| Clara Mcdermott | Spouse | — | 42 | ~1888 |
Census Appearances
1920
Hudson, New …
Son, age 2
Hudson, New Jersey · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Son, age 12
Hudson, New Jersey · implied b. ~1918 — 5 household members
| Surname | McDermott |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 23
Union-County, New Jersey · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDermott |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Plainfield Junior |
| 1935 Residence (County) | Union |
| Occupation | clerk |
| Industry | comm. bank |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 869 |
| Highest Grade | C 1 |
| 1935 Residence | New Jersey |
| 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 Mcdermott across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Mcdermott (~0.92 confidence) and father James Mcdermott (~0.92 confidence) and mother Clara Mcdermott (~0.92 confidence) and mother Clara Mcdermott (~0.92 confidence) and father Charles Macdermott (~0.92 confidence) and mother Antoinette Macdermott (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Mcdermott
b. ~1881
Source father
● Household
· direct · ~0.92
Father
James Mcdermott
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Clara Mcdermott
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Clara Mcdermott
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Charles Macdermott
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Antoinette Macdermott
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mcdermott
Son · 1930 · age 12 · b. ~1918 · New Jersey
★ You are viewing this record
Sibling
Helen Mcdermott
Sibling · 1930 · age 17
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 — Hudson, New Jersey
Open full size
1930 US Federal Census — Hudson, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1353:0634)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Smith | 13 | Son | — | New Jersey |
| 2 | Francis Smith | 12 | Daughter | — | New Jersey |
| 3 | Thomas Smith | 10 | Son | — | New Jersey |
| 4 | Viola Smith | 6 | Daughter | — | New Jersey |
| 5 | James Mcdermott | 49 | Head | Chauffeur | New York |
| 6 | Clara Mcdermott | 42 | Wife | — | New Jersey |
| 7 | Helen Mcdermott | 17 | Daughter | — | New Jersey |
| 8 | John Mcdermott THIS PERSON | 12 | Son | — | New Jersey |
| 9 | Frank Kaly | 52 | Boarder | Clerk | New Jersey |
| 10 | Anna Ehrens | 41 | Head | — | Germany |
| 11 | Henry Ehrens | 41 | Brother | Salesman | New Jersey |
| 12 | John Ehrens | 39 | Brother | Clerk | New Jersey |
| 13 | Louis Ehrens | 37 | Brother | Salesman | New Jersey |
| 14 | William Ehrens | 35 | Brother | Salesman | New Jersey |
| 15 | Robert Ehrens | 18 | Brother | Clerk | New Jersey |
| 16 | Betty C. Ehrens | 44 | Sister | Milliner | Germany |
| 17 | Nils Hylen | 60 | Head | Pattern Maker | Sweden |
| 18 | Emily Hylen | 50 | Wife | — | Sweden |
| 19 | Ellen Hylen | 30 | Daughter | — | Sweden |
| 20 | David Johnson | 40 | Boarder | Ironman | Sweden |
| 21 | Hokan Nyberg | 38 | Boarder | Machinist | Sweden |
| 22 | Thomas Aspinwall | 50 | Head | Salesman | New Jersey |
| 23 | Anna Aspinwall | 49 | Wife | — | New Jersey |
| 24 | Beatrice Aspinwall | 27 | Daughter | Bookkeeper | New Jersey |
| 25 | Angelo Camperson | 49 | Head | Watchman | Italy |
| 26 | Louise Camperson | 49 | Wife | — | Italy |
| 27 | Daniel Camperson | 24 | Son | Clerk | Italy |
| 28 | Marie Camperson | 19 | Daughter | Wrapper | New Jersey |
| 29 | Frank Camperson | 17 | Son | Helper | New Jersey |
| 30 | Josephine Camperson | 14 | Daughter | — | New Jersey |
| 31 | Salvatore Camperson | 12 | Son | — | New Jersey |
| 32 | Andrew Camperson | 8 | Son | — | New Jersey |
| 33 | Theodore Peric | 34 | Head | Laborer | Spain |
| 34 | Carmen Peric | 40 | Wife | — | Spain |
| 35 | Catherine Peric | 8 | Daughter | — | Massachusetts |
| 36 | Peter Peric | 7 | Son | — | Massachusetts |
| 37 | John Ogea | 26 | Boarder | Laborer | Spain |
| 38 | Manuel Villanasa | 25 | Boarder | Laborer | Spain |
| 39 | Harry Aunty | 43 | Head | Laborer | Pennsylvania |
| 40 | Anna Aunty | 43 | Wife | — | Ireland |
| 41 | Joseph Aunty | 19 | Son | Waiter | New Jersey |
| 42 | Chester Aunty | 13 | Son | — | New Jersey |
| 43 | Florence Aunty | 9 | Daughter | — | New Jersey |
| 44 | Vincent Aunty | 8 | Son | — | New Jersey |
| 45 | Lena Miller | 49 | Head | Nurse | Germany |
| 46 | John Saffery | 39 | Head | Operator | New Jersey |
| 47 | Mary Saffery | 31 | Wife | — | Pennsylvania |
| 48 | John Saffery | 12 | Son | — | Pennsylvania |
| 49 | Grace Saffery | 11 | Daughter | — | Pennsylvania |
| 50 | Anna Saffery | 9 | Daughter | — | Pennsylvania |
Pedigree Summary
John + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)