JI
James Irwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this James Irwin across the 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Irwin |
| Given Name | James M. Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | electrician |
| Industry | electrical appliance factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1183 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Electrician |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1892 |
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 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| George Irwin | Son | — | 18 | ~1922 |
| Robert Irwin | Son | — | 8 | ~1932 |
| Emma Irwin | Daughter | — | 12 | ~1928 |
| Roy Irwin | Son | — | 22 | ~1918 |
| James Irwin | Head | — | 48 | ~1892 |
Census Appearances
1930
Union, New …
Head, age 38
Union, New Jersey · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Boilermaker |
| Industry | Oil Refinery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Head, age 48
Union-County, New Jersey · implied b. ~1892 — 5 household members
| Surname | Irwin |
| Given Name | James M. Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Occupation | electrician |
| Industry | electrical appliance factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1183 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 James Irwin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Irwin
Head · 1940 · age 48 · b. ~1892 · New Jersey
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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
40 people indexed on this census page (nara:1940:m-t0627-02397-00626)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Lersch | 78 | Head | — | Germany |
| 2 | Elise Lersch | 70 | Wife | — | Germany |
| 3 | Frederick Lersch | 35 | Son | — | New Jersey |
| 4 | Augusta Lersch | 34 | Daughter | Housekeeper | New Jersey |
| 5 | Elizabeth Lersch | 30 | Daughter | Operator | New Jersey |
| 6 | Joseph Lersch | 11 | Grandson | — | New Jersey |
| 7 | William Lersch | 71 | Brother | — | New Jersey |
| 8 | John Kikuta | 32 | Head | Laborer | New Jersey |
| 9 | Bertha Kikuta | 28 | Wife | — | New Jersey |
| 10 | Joan Kikuta | 2 | Daughter | — | New Jersey |
| 11 | Leon Malafy | 61 | Head | — | Poland |
| 12 | Mary Malafy | 54 | Wife | — | Poland |
| 13 | Olga Malafy | 25 | Daughter | Hairdresser | New Jersey |
| 14 | Joseph Baszkiewicz | 40 | Head | Porter | Poland |
| 15 | Bessie Baszkiewicz | 32 | Wife | Pretzel Bender | New York |
| 16 | Albert Baszkiewicz | 14 | Son | — | New Jersey |
| 17 | Agnes Bones | 60 | Head | — | New York |
| 18 | Anna Bones | 54 | Sister | Claims Clerk | New York |
| 19 | George Garew | 62 | Head | Laborer | New Jersey |
| 20 | Julia Garew | 58 | Wife | — | New Jersey |
| 21 | Josephine Garew | 27 | Daughter | Machine Operator | New Jersey |
| 22 | Julia M. Garew | 18 | Daughter | Packer | New Jersey |
| 23 | Timothy Chary | 61 | Head | — | New Jersey |
| 24 | Ellen Chary | 58 | Wife | — | New Jersey |
| 25 | Mona Abraham | 32 | Niece | Secretary Typist | New Jersey |
| 26 | James M. Jr. Irwin THIS PERSON | 48 | Head | Electrician | New Jersey |
| 27 | Roy Irwin | 22 | Son | Cover Maker | New Jersey |
| 28 | Robert Irwin | 8 | Son | — | New Jersey |
| 29 | George Irwin | 18 | Son | Assistant Cook | New Jersey |
| 30 | Emma Irwin | 12 | Daughter | — | New Jersey |
| 31 | John Butowski | 66 | Head | Fireman | Poland |
| 32 | Josephine Butowski | 35 | Daughter | Proprietor | Poland |
| 33 | Henry Butowski | 33 | Son | Machine Operator | Poland |
| 34 | Julius Butowski | 29 | Son | Machine Operator | New Jersey |
| 35 | Joseph Butowski | 27 | Son | Machine Operator | New Jersey |
| 36 | Mary Butowski | 25 | Daughter | Operator | New Jersey |
| 37 | Hedwig Butowski | 23 | Daughter | — | New Jersey |
| 38 | John Jr. Butowski | 19 | Son | New Worker | New Jersey |
| 39 | Henry Butowski | 10 | Nephew | — | New Jersey |
| 40 | James Butowski | 74 | Brother | — | Poland |
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)