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William Irwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Crawford-County, Missouri
Our Model Tree links this William Irwin across the 1930 and 1940 US Censuses in Crawford-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 6-person household.
Age 74
b. ~1866
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Crawford-County, Missouri |
| Surname | Irwin |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Boone Twp |
| 1935 Residence (County) | Crawford |
| Additional Details | |
| Occupation | Farm Renter |
| Industry | General farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Farm Renter |
| Township / Ward | Boone Twp |
| Est. Birth Year | ~1866 |
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 |
|---|---|---|---|---|
| William Irwin | Son | — | 17 | ~1923 |
| Elmira Irwin | Daughter | — | 11 | ~1929 |
| William Irwin | Head | — | 74 | ~1866 |
| Lewis Irwin | Son | — | 14 | ~1926 |
| Walter Irwin | Son | — | 8 | ~1932 |
| Lucie Irwin | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Crawford, Missouri
Head, age 68
Crawford, Missouri · implied b. ~1862 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | Wm |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 22 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Missouri |
| Occupation | Farmer |
| Industry | Gen. farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | crop |
| Veteran | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Crawford-County, Missouri
Head, age 74
Crawford-County, Missouri · implied b. ~1866 — 6 household members
| Surname | Irwin |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Boone Twp |
| 1935 Residence (County) | Crawford |
| Occupation | Farm Renter |
| Industry | General farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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.
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This person
Anchor record
William Irwin
Head · 1940 · age 74 · b. ~1866 · Missouri
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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 — Crawford-County, Missouri
Open full size
1940 US Federal Census — Crawford-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02100-00620)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hazel D Pennock | 19 | Wife | — | Missouri |
| 2 | Stanley Gene Pennock | 1 | Son | — | Missouri |
| 3 | Wesley R Sites | 46 | Head | Farm Owner | Missouri |
| 4 | Clara Sites | 78 | Mother | — | Missouri |
| 5 | Ethel Sites | 37 | Sister | Shoe Worker | Missouri |
| 6 | Marion Heflin | 67 | Head | — | Missouri |
| 7 | Ida Heflin | 60 | Wife | — | Missouri |
| 8 | Jack Jackson | 39 | Head | Laborer | Missouri |
| 9 | Pearl Jackson | 45 | Wife | — | Missouri |
| 10 | Madie Jackson | 17 | Daughter | — | Missouri |
| 11 | Billy Jackson | 16 | Son | — | Missouri |
| 12 | Lloyd Elsery | 32 | Head | Truck Driver | Missouri |
| 13 | Alma Elsery | 40 | Wife | — | Kentucky |
| 14 | Katherine Isenhowery | 29 | Head | — | Missouri |
| 15 | Harold Isenhowery | 13 | Son | — | Missouri |
| 16 | Katherine Ida Isenhowery | 11 | Daughter | — | Missouri |
| 17 | June Isenhowery | 7 | Daughter | — | Missouri |
| 18 | Joyce Isenhowery | 6 | Daughter | — | Minnesota |
| 19 | Nettie Mae Isenhowery | 3 | Daughter | — | Minnesota |
| 20 | Mayme G Stone | 68 | Head | — | Ohio |
| 21 | Benjamin Hecks Stone | 88 | Husband | — | Arkansas |
| 22 | Willard Lanham | 33 | Head | Laborer | Missouri |
| 23 | Kate Lanham | 30 | Wife | Laborer | Missouri |
| 24 | Arch Puckett | 57 | Head | Plumber | Missouri |
| 25 | Irene Puckett | 66 | Wife | — | Illinois |
| 26 | Emory Crockett | 54 | Head | Farm Owner | Missouri |
| 27 | Gertrude Crockett | 54 | Wife | — | Missouri |
| 28 | Merle Agnes Crockett | 28 | Daughter | Teacher | Missouri |
| 29 | Kenneth Crockett | 22 | Son | Farmer | Missouri |
| 30 | Harry Vielen | 44 | Brother-in-law | — | Missouri |
| 31 | Virgil S Thompson | 33 | Head | Farm Renter | Missouri |
| 32 | Marie Thompson | 25 | Wife | — | Missouri |
| 33 | Leroy Thompson | 1 | Son | — | Missouri |
| 34 | William Irwin THIS PERSON | 74 | Head | Farm Renter | Missouri |
| 35 | Lucie Irwin | 47 | Wife | — | Missouri |
| 36 | William Irwin | 17 | Son | Farm Hand | Missouri |
| 37 | Lewis Irwin | 14 | Son | — | Missouri |
| 38 | Elmira Irwin | 11 | Daughter | — | Missouri |
| 39 | Walter Irwin | 8 | Son | — | Missouri |
| 40 | James Lewis Mercer | 28 | Head | Farm Operator | Missouri |
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)