JI
John Irwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this John Irwin across the 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 8-person household.
Age 44
b. ~1896
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Irwin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Fireman |
| Industry | City Fire Dept. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 3000 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Fireman |
| Township / Ward | New York City |
| Est. Birth Year | ~1896 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Irwin | Head | — | 44 | ~1896 |
| Patricia Irwin | Daughter | — | 5 | ~1935 |
| Edward Irwin | Son | — | 6 | ~1934 |
| Kathleen Irwin | Daughter | — | 12 | ~1928 |
| Joan Irwin | Daughter | — | 13 | ~1927 |
| Mary Irwin | Spouse | — | 40 | ~1900 |
| John Irwin | Son | — | 6 | ~1934 |
| Joseph Irwin | Son | — | 14 | ~1926 |
Census Appearances
1930
New York, …
Other, age 34
New York, New York · implied b. ~1896 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | John |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1918 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Bronx-County, New …
Head, age 44
Bronx-County, New York · implied b. ~1896 — 8 household members
| Surname | Irwin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Naturalization Status | Naturalized |
| Occupation | Fireman |
| Industry | City Fire Dept. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 3000 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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.
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This person
Anchor record
John Irwin
Head · 1940 · age 44 · b. ~1896 · New York
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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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02474-00413)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Henry Honigan | 34 | Son-in-law | Foreman | New York |
| 42 | Herbert Gorman | 34 | Head | Teletype | Rhode Island |
| 43 | Ruth Gorman | 29 | Wife | — | New York |
| 44 | Herbert Jr. Gorman | 3 | Son | — | New York |
| 45 | Joseph B. Mccullogh | 76 | Head | — | New York |
| 46 | Marie H. Mccullogh | 35 | Daughter | Telephone Operator | New York |
| 47 | Margaret Mccullogh | 33 | Daughter | — | New York |
| 48 | Joseph Jr. Mccullogh | 30 | Son | — | New York |
| 49 | John Irwin THIS PERSON | 44 | Head | Fireman | Ireland |
| 50 | Mary Irwin | 40 | Wife | — | Ireland |
| 51 | Joseph Irwin | 14 | Son | — | New York |
| 52 | Joan Irwin | 13 | Daughter | — | New York |
| 53 | Kathleen Irwin | 12 | Daughter | — | New York |
| 54 | John Jr. Irwin | 6 | Son | — | New York |
| 55 | Edward Irwin | 6 | Son | — | New York |
| 56 | Patricia Irwin | 5 | Daughter | — | New York |
| 57 | Martinez Lucas | 25 | Head | Switchboard | Florida |
| 58 | Selia Lucas | 50 | Mother | — | Florida |
| 59 | Evelio Lucas | 22 | Brother | Elevator Operator | Florida |
| 60 | Joe Lucas | 20 | Brother | Superintendent | Florida |
| 61 | Aurelo Lucas | 14 | Brother | — | Florida |
| 62 | Morris Kamins | 50 | Head | — | Russia |
| 63 | Dora Kamins | 50 | Wife | — | New York |
| 64 | Kalman Kamins | 28 | Son | — | New York |
| 65 | Sylvia Kamins | 24 | Daughter | — | New York |
| 66 | Robert Kamins | 21 | Son | — | New York |
| 67 | David Kamins | 85 | Father | — | Russia |
| 68 | Jennie Kamins | 75 | Mother | — | Russia |
| 69 | Leopold Lax | 56 | Head | Machine Operator | Hungary |
| 70 | Ida Lax | 51 | Wife | — | Hungary |
| 71 | Rose Lax | 23 | Daughter | Slipstitcher | Hungary |
| 72 | Harry Lax | 16 | Son | — | Romania |
| 73 | Robert H. Chapman | 50 | Head | Letter Carrier | New York |
| 74 | Dorothea Chapman | 47 | Wife | — | New York |
| 75 | Woodrow Chapman | 21 | Son | Filing Clerk | New York |
| 76 | Kate Osterbye | 67 | Mother-in-law | — | New York |
| 77 | Benedict Sturman | 59 | Head | Finisher | Poland |
| 78 | Anna Sturman | 52 | Wife | — | Poland |
| 79 | Morris Sturman | 27 | Son | — | New York |
| 80 | Max Sturman | 21 | Son | Machinist | New York |
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)