JI
John Irwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Camden-County, New Jersey
Our Model Tree links this John Irwin across the 1930 and 1940 US Censuses in Camden-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Camden-County, New Jersey |
| Surname | Irwin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Collingswood Borough |
| 1935 Residence (County) | Camden |
| Additional Details | |
| Occupation | Coal Truck |
| Industry | Driver |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Coal Truck |
| Township / Ward | Collingswood Borough |
| Est. Birth Year | ~1912 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Irwin | Son | — | 28 | ~1912 |
| Harriet Irwin | Spouse | — | 53 | ~1887 |
| Eleanor Irwin | Daughter | — | 23 | ~1917 |
| John Irwin | Head | — | 59 | ~1881 |
Census Appearances
1930
Camden, New …
Son, age 19
Camden, New Jersey · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | John Henry Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Pennsylvania |
| Occupation | Clerk |
| Industry | Shipyard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Camden-County, New …
Son, age 28
Camden-County, New Jersey · implied b. ~1912 — 4 household members
| Surname | Irwin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Collingswood Borough |
| 1935 Residence (County) | Camden |
| Occupation | Coal Truck |
| Industry | Driver |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 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 John Irwin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Irwin
Son · 1940 · age 28 · b. ~1912 · New Jersey
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Sibling
Eleanor Irwin
Sibling · 1940 · age 23
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 — Camden-County, New Jersey
Open full size
1940 US Federal Census — Camden-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02320-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Irwin | 59 | Head | Welder | New Jersey |
| 2 | Harriet Irwin | 53 | Wife | — | New Jersey |
| 3 | John Irwin THIS PERSON | 28 | Son | Coal Truck | New Jersey |
| 4 | Eleanor Irwin | 23 | Daughter | — | New Jersey |
| 5 | William Hough | 63 | Head | Painter | New Jersey |
| 6 | Elizabeth Hough | 58 | Wife | — | New Jersey |
| 7 | Franklin Corbi | 28 | Head | Salesman | New Jersey |
| 8 | Thelma Corbi | 23 | Wife | Clerk | New Jersey |
| 9 | Ada Wilson | 28 | Sister | — | New Jersey |
| 10 | Cancell | None | — | — | — |
| 11 | Cancell | None | — | — | — |
| 12 | Andrew Pressy | 48 | Head | Foreman | Hungary |
| 13 | Sophia Pressy | 45 | Wife | — | New Jersey |
| 14 | Lucille Pressy | 24 | Daughter | Clerk | New Jersey |
| 15 | Ethel Pressy | 15 | Daughter | — | New Jersey |
| 16 | George Terry | 60 | Head | Toll Collector | Kentucky |
| 17 | Cora Terry | 53 | Wife | — | Penn |
| 18 | Marion Wardman | 43 | Sister in law | House Dresser | Penn |
| 19 | Lewis Rund | 53 | Head | School Teacher | Penn |
| 20 | Frieda Rund | 50 | Wife | — | Penn |
| 21 | Louis Jr Rund | 27 | Son | Driver | New Jersey |
| 22 | Edwin Rund | 17 | Son | — | New Jersey |
| 23 | Warren Moll | 56 | Head | Salesman | New Jersey |
| 24 | Emma Moll | 50 | Wife | — | New Jersey |
| 25 | Marion Moll | 26 | Daughter | Saleslady | New Jersey |
| 26 | Gabriel Wilson | 51 | Head | — | Scotland |
| 27 | Bertha Wilson | 47 | Wife | — | Scotland |
| 28 | Raymond Krause | 25 | Head | Salesman | New Jersey |
| 29 | Myrtle Krause | 22 | Wife | — | New Jersey |
| 30 | Raymond Krause | 0 | Son | — | New Jersey |
| 31 | John Lowther | 30 | Head | Electrician | Penn |
| 32 | Rose Lowther | 22 | Wife | — | New Jersey |
| 33 | Elizabeth Lowther | 59 | Mother | — | Penn |
| 34 | Axel Hansen | 37 | Head | Draftsman | Denmark |
| 35 | Marie Hansen | 40 | Wife | — | Denmark |
| 36 | Ingrid Hansen | 6 | Daughter | — | New Jersey |
| 37 | John Hansen | 7 | Son | — | New Jersey |
| 38 | Oscar A Hansen | 67 | Father | — | Denmark |
| 39 | Grace Earl | 37 | Head | — | Penn |
| 40 | Paul Radel | 21 | Son | Truck Driver | 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)