WI
William Irwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Trumbull-County, Ohio
Our Model Tree links this William Irwin across the 1930 and 1940 US Censuses in Trumbull-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 6-person household.
Age 11
b. ~1929
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Trumbull-County, Ohio |
| Surname | IRWIN |
| Given Name | WILLIAM |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | TRUMBULL |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 5 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mc Donald Village |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Catherine Irwin | Daughter | — | 13 | ~1927 |
| Christine Irwin | Daughter | — | 6 | ~1934 |
| Edgar Irwin | Son | — | 16 | ~1924 |
| Esther Irwin | Spouse | — | 35 | ~1905 |
| William Irwin | Son | — | 11 | ~1929 |
| Edgar Irwin | Head | — | 35 | ~1905 |
Census Appearances
1930
Trumbull, Ohio
Son, age 1
Trumbull, Ohio · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Trumbull-County, Ohio
Son, age 11
Trumbull-County, Ohio · implied b. ~1929 — 6 household members
| Surname | IRWIN |
| Given Name | WILLIAM |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | TRUMBULL |
| Hours Worked | 0 |
| Highest Grade | No 5 |
| 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 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 · Ohio
★ You are viewing this record
Sibling
Christine Irwin
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edgar Irwin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Irwin
Sibling · 1940 · age 13
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 — Trumbull-County, Ohio
Open full size
1940 US Federal Census — Trumbull-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03159-00038)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lois Ann | 0 | Daughter | — | Ohio |
| 2 | Theresa Reidelman | 18 | Sister in law | — | Ohio |
| 3 | Frank Bergen | 44 | Lodger | Shipper | Virginia |
| 4 | Jack Black | 20 | Head | Order Clerk | Pennsylvania |
| 5 | Virginia Black | 20 | Wife | — | Ohio |
| 6 | Glen Davis | 41 | Head | Teacher | Indiana |
| 7 | Martha Davis | 38 | Wife | — | Ohio |
| 8 | Ellen Mary Davis | 15 | Daughter | — | Ohio |
| 9 | Charles Davis | 13 | Son | — | Ohio |
| 10 | Raymond Heilman | 26 | Head | Roll Designer | Pennsylvania |
| 11 | Jean Heilman | 24 | Wife | — | Pennsylvania |
| 12 | Janet Heilman | 1 | Daughter | — | Ohio |
| 13 | Harold Lisdell | 35 | Head | Weigh Master | New York |
| 14 | Josephine Lisdell | 36 | Wife | — | Maryland |
| 15 | Harold Lisdell | 14 | Son | — | Ohio |
| 16 | Armeta Lisdell | 10 | Daughter | — | Ohio |
| 17 | David Lisdell | 5 | Son | — | Ohio |
| 18 | James Mc Nees | 29 | Head | Pulpit Operator | Ohio |
| 19 | Helen Mc Nees | 32 | Wife | — | Ohio |
| 20 | Robert Mc Nees | 8 | Son | — | Ohio |
| 21 | Ruth Foreman | 28 | Lodger | Teacher | Ohio |
| 22 | Charles Kukuk | 58 | Head | Janitor | Pennsylvania |
| 23 | Mary Kukuk | 54 | Wife | — | Pennsylvania |
| 24 | Ruth Kukuk | 26 | Daughter | Teacher | Pennsylvania |
| 25 | Wayne Kukuk | 14 | Son | — | Pennsylvania |
| 26 | Ross Mc Lean | 22 | Lodger | Crane Man | Pennsylvania |
| 27 | Robert Maybray | 47 | Head | Crane Man | Pennsylvania |
| 28 | Edna Maybray | 51 | Wife | — | Pennsylvania |
| 29 | Edith Maybray | 20 | Daughter | Stenographer | Pennsylvania |
| 30 | William Houston | 49 | Lodger | Crane Man | Ireland |
| 31 | John Dokter | 44 | Head | Mill Wright Supervisor | South Dakota |
| 32 | Sybil Dokter | 34 | Wife | — | Iowa |
| 33 | Lynn Dokter | 5 | Daughter | — | Illinois |
| 34 | Edgar Irwin | 35 | Head | Gauger | Pennsylvania |
| 35 | Esther Irwin | 35 | Wife | — | Pennsylvania |
| 36 | Edgar Irwin | 16 | Son | — | Pennsylvania |
| 37 | Catherine Irwin | 13 | Daughter | — | Pennsylvania |
| 38 | William Irwin THIS PERSON | 11 | Son | — | Pennsylvania |
| 39 | Christine Irwin | 6 | Daughter | — | Ohio |
| 40 | Robert Linfoot | 58 | Head | Roll Turner | Illinois |
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)