WI
William Irwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this William Irwin across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 4-person household.
Age 11
b. ~1929
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Irwin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Highest Grade | G 4 |
| 1935 Residence | Same Place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1929 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Irwin | Head | — | 44 | ~1896 |
| William Irwin | Son | — | 11 | ~1929 |
| Elizabeth Irwin | Spouse | — | 31 | ~1909 |
| Wm Irwin | Son | — | 11 | ~1929 |
Census Appearances
1930
Wayne, Michigan
Son, age 1
Wayne, Michigan · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Canada-Fr. |
| Mother's Birthplace | Michigan |
| Occupation | Yes |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 11
Wayne-County, Michigan · implied b. ~1929 — 4 household members
| Surname | Irwin |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Highest Grade | G 4 |
| 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 William Irwin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Irwin
Son · 1940 · age 11 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
Wm Irwin
Sibling · 1940 · age 11
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01891-00185)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patricia Walters | 6 | Daughter | — | Michigan |
| 42 | Roy Taylor | 38 | Head | Motorman | Missouri |
| 43 | Gladys Taylor | 38 | Wife | — | Missouri |
| 44 | Bertha Taylor | 19 | Daughter | New Worker | Arkansas |
| 45 | Clifford Taylor | 12 | Son | — | Michigan |
| 46 | Rolland O. Watson | 27 | Head | Printer | Indiana |
| 47 | Eunice Watson | 27 | Wife | — | Michigan |
| 48 | Marianne Watson | 5 | Daughter | — | Michigan |
| 49 | Janice Watson | 2 | Daughter | — | Michigan |
| 50 | Albert H. Duck | 41 | Head | Sheet Metal Worker | England |
| 51 | Rose A. Duck | 32 | Wife | — | Scotland |
| 52 | William H. Irwin | 44 | Head | Running Repairman | Scotland |
| 53 | Elizabeth Irwin | 31 | Wife | — | Scotland |
| 54 | Wm. J. Irwin | 11 | Son | — | Michigan |
| 55 | William Irwin THIS PERSON | 11 | Son | — | Michigan |
| 56 | Clare G. Doherty | 38 | Head | Proprietor | Kansas |
| 57 | Theresa Doherty | 24 | Wife | Beauty Operator | New Jersey |
| 58 | Theresa Berri | 52 | Mother-in-law | — | Austria |
| 59 | Walter A. Griffin | 44 | Head | Civil Engineer | Michigan |
| 60 | Evelyn Griffin | 43 | Wife | — | Michigan |
| 61 | Robert Griffin | 13 | Son | — | Michigan |
| 62 | William Griffin | 7 | Son | — | Michigan |
| 63 | Marilyn Griffin | 4 | Daughter | — | Michigan |
| 64 | Merril E. Hayes | 47 | Head | Janitress | Michigan |
| 65 | Harold Hayes | 21 | Son | Grinder | Michigan |
| 66 | Vaughan Hayes | 20 | Son | Attendant | Michigan |
| 67 | Earl Hayes | 18 | Son | — | Michigan |
| 68 | Lucille Hauck | 23 | Daughter | — | Michigan |
| 69 | Mary Lou Hauck | 4 | Granddaughter | — | Michigan |
| 70 | Robert Hauck | 2 | Grandson | — | Michigan |
| 71 | David Stackable | 54 | Head | Lineman | Michigan |
| 72 | Ella Stackable | 47 | Wife | — | Ohio |
| 73 | Warren Stackable | 21 | Son | Station Attendant | Michigan |
| 74 | Kenneth Stackable | 20 | Son | Truck Driver | Michigan |
| 75 | Thomas Stackable | 18 | Son | Pinsetter | Michigan |
| 76 | William Stackable | 15 | Son | — | Michigan |
| 77 | Clara De Rio | 65 | Head | — | Michigan |
| 78 | Fred De Rio | 27 | Son | Applicator | Michigan |
| 79 | Ralph De Rio | 24 | Son | Applicator | Colorado |
| 80 | Emil W. Kreuger | 53 | Head | Carpenter | 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)