JI
James Irwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Saginaw-County, Michigan
Our Model Tree links this James Irwin across the 1930 and 1940 US Censuses in Saginaw-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 5-person household.
Age 13
b. ~1927
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Saginaw-County, Michigan |
| Surname | Irwin |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Buena Vista |
| 1935 Residence (County) | Saginaw |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Buena Vista |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| James Irwin | Head | — | 36 | ~1904 |
| James Irwin | Son | — | 13 | ~1927 |
| Ernest Irwin | Son | — | 5 | ~1935 |
| Jack Irwin | Son | — | 11 | ~1929 |
| Georgia Irwin | Spouse | — | 32 | ~1908 |
Census Appearances
1930
Saginaw, Michigan
Son, age 3
Saginaw, Michigan · implied b. ~1927 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Indiana |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Saginaw-County, Michigan
Son, age 13
Saginaw-County, Michigan · implied b. ~1927 — 5 household members
| Surname | Irwin |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Buena Vista |
| 1935 Residence (County) | Saginaw |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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
Son · 1940 · age 13 · b. ~1927 · Michigan
★ You are viewing this record
Sibling
Jack Irwin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Irwin
Sibling · 1940 · age 5
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 — Saginaw-County, Michigan
Open full size
1940 US Federal Census — Saginaw-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01811-00318)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Tresa Corson | 50 | Wife | Housewife | Michigan |
| 2 | Walter Corson | 18 | Son | Farmer | Michigan |
| 3 | Robert Corson | 16 | Son | Farmer | Michigan |
| 4 | Earl Corson | 14 | Son | Farmer | Michigan |
| 5 | Mildred Corson | 12 | Daughter | — | Michigan |
| 6 | Marie Corson | 11 | Daughter | — | Michigan |
| 7 | Ray Muhr | 44 | Head | Fox Farmer | Michigan |
| 8 | Mildred Muhr | 42 | Wife | Housewife | Michigan |
| 9 | Marjorie Muhr | 20 | Daughter | Household | Michigan |
| 10 | Mark Muhr | 15 | Son | Farmer | Michigan |
| 11 | Ernest Jr. Irwin | 27 | Head | Farmer | Michigan |
| 12 | Beatrice Irwin | 22 | Wife | Housewife | Michigan |
| 13 | Ernest J. Irwin | 5 | Son | — | Michigan |
| 14 | Barbara Irwin | 3 | Daughter | — | Michigan |
| 15 | Janet Irwin | 0 | Daughter | — | Michigan |
| 16 | Hugo V. Hampton | 35 | Head | Manager | Indiana |
| 17 | Winifred K. Hampton | 33 | Wife | Housewife | Michigan |
| 18 | Jo Ann Hampton | 12 | Daughter | — | Michigan |
| 19 | Irvin Hampton | 9 | Son | — | Michigan |
| 20 | Larry Hampton | 6 | Son | — | Michigan |
| 21 | Ernest Sr. Irwin | 65 | Head | Farmer | Vermont |
| 22 | James J. Irwin | 36 | Head | Farmer | Michigan |
| 23 | Georgia Irwin | 32 | Wife | Housewife | Indiana |
| 24 | James Jr. Irwin THIS PERSON | 13 | Son | — | Michigan |
| 25 | Jack Irwin | 11 | Son | — | Michigan |
| 26 | Ernest W. Irwin | 5 | Son | — | Michigan |
| 27 | William Rouch | 30 | Head | Clerk | Michigan |
| 28 | Harriett Rouch | 30 | Wife | Housewife | Michigan |
| 29 | Thomas Rouch | 5 | Son | — | Michigan |
| 30 | William Rouch | 4 | Son | — | Michigan |
| 31 | Anthony Zynkowisk | 41 | Head | Farmer | Michigan |
| 32 | Josefine Zynkowisk | 71 | Mother | — | Poland |
| 33 | Bernard Raymaker | 30 | Brother-in-law | Farmer | Michigan |
| 34 | Frances Raymaker | 28 | Sister | Housewife | Michigan |
| 35 | Delphine Raymaker | 7 | Niece | — | Michigan |
| 36 | Louis Flores | 30 | Head | Beet Weeder | Mexico |
| 37 | Inica Flores | 25 | Wife | Housewife | Texas |
| 38 | Riccardo Flores | 5 | Son | — | Texas |
| 39 | Minerva Flores | 2 | Daughter | — | Texas |
| 40 | Pablo Flores | 0 | Son | — | Texas |
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)