JI
James Irwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this James Irwin across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 6-person household.
Age 44
b. ~1896
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Irwin |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Steam Roller Fireman |
| Industry | Wheel Co. |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 348 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Steam Roller Fireman |
| Township / Ward | Detroit 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ruth Irwin | Daughter | — | 18 | ~1922 |
| James Irwin | Head | — | 44 | ~1896 |
| Arthur Irwin | Son | — | 15 | ~1925 |
| Margaret Irwin | Spouse | — | 38 | ~1902 |
| James Irwin | Son | — | 13 | ~1927 |
| Raymond Irwin | Son | — | 16 | ~1924 |
Census Appearances
1930
Wayne, Michigan
Other, age 31
Wayne, Michigan · implied b. ~1899 — 16 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | James |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Inspector |
| Industry | Auto Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Wayne-County, Michigan
Head, age 44
Wayne-County, Michigan · implied b. ~1896 — 6 household members
| Surname | Irwin |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | Steam Roller Fireman |
| Industry | Wheel Co. |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 348 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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.
Show:
This person
Anchor record
James Irwin
Head · 1940 · age 44 · b. ~1896 · Michigan
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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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01888-00254)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna W Gordon | 50 | Wife | — | Illinois |
| 2 | Helen Gordon | 20 | Daughter | General Clerk | Illinois |
| 3 | Lloyd King | 32 | Head | Salesman | Canada-English |
| 4 | Margaret King | 34 | Wife | — | Canada-English |
| 5 | Arthur Parsons | 30 | Brother-in-law | Banker | Canada-English |
| 6 | Abrajam | Abraham Thomas | 37 | Head | Insurance | Michigan |
| 7 | Louise Thomas | 24 | Wife | — | Georgia |
| 8 | Elaine J. Thomas | 2 | Daughter | — | Michigan |
| 9 | Francis Hauk | 39 | Head | Salesman | Pennsylvania |
| 10 | Eleanore Hauk | 38 | Wife | — | Michigan |
| 11 | Francis Hauk | 19 | Son | Mechanic | Michigan |
| 12 | Helen Hauk | 16 | Daughter | — | Michigan |
| 13 | George Springstead | 68 | Father-in-law | — | Michigan |
| 14 | John R. Smith | 34 | Head | Mechanist | Virginia |
| 15 | Olive Smith | 32 | Wife | Grocery | Canada-English |
| 16 | John Smith | 10 | Son | — | Michigan |
| 17 | Shirley Smith | 6 | Daughter | — | Michigan |
| 18 | Barbara Lee Smith | 1 | Daughter | — | Michigan |
| 20 | Lester Little | 52 | Head | Brewer | Wisconsin |
| 21 | Jessie Little | 51 | Wife | — | Minnesota |
| 22 | Margaret Little | 21 | Daughter | Bookkeeper | Michigan |
| 23 | Dorothy Little | 19 | Daughter | — | Michigan |
| 24 | James Irwin THIS PERSON | 44 | Head | Steam Roller Fireman | Pennsylvania |
| 25 | Margaret Irwin | 38 | Wife | — | Michigan |
| 26 | Ruth Irwin | 18 | Daughter | — | Michigan |
| 27 | Raymond Irwin | 16 | Son | — | Michigan |
| 28 | Arthur Irwin | 15 | Son | — | Michigan |
| 29 | James Irwin | 13 | Son | — | Michigan |
| 30 | Alfred Schuler | 48 | Head | Policeman | Michigan |
| 31 | Blanche Schuler | 49 | Wife | — | Michigan |
| 32 | Robert Schuler | 20 | Son | Machinist | Michigan |
| 33 | William Mcallister | 38 | Head | Salesman | New York |
| 34 | Florence Mcallister | 35 | Wife | — | England |
| 35 | William Jr. Mcallister | 10 | Son | — | Michigan |
| 36 | Leonard Lewis | 24 | Brother-in-law | Salesman | Michigan |
| 37 | Gerald Maloney | 39 | Head | Plumber | Michigan |
| 38 | Pauline Maloney | 37 | Wife | — | Denmark |
| 39 | Patricia Maloney | 12 | Daughter | — | Michigan |
| 40 | Thomas Maloney | 10 | Son | — | Michigan |
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)