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William Hardy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Madison-County, Illinois
Our Model Tree links this William Hardy across the 1930 and 1940 US Censuses in Madison-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Illinois |
| Surname | Hardy |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Alton |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Godfrey |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Marian Hardy | Daughter | — | 9 | ~1931 |
| George Hardy | Son | — | 5 | ~1935 |
| William Hardy | Son | — | 12 | ~1928 |
| Thelma Hardy | Spouse | — | 35 | ~1905 |
| Alphonso Hardy | Son | — | 3 | ~1937 |
| Harold Hardy | Son | — | 14 | ~1926 |
| Bernice Hardy | Daughter | — | 11 | ~1929 |
| William Hardy | Head | — | 46 | ~1894 |
| Richard Hardy | Son | — | 1 | ~1939 |
Census Appearances
1930
Madison, Illinois
Other, age 2
Madison, Illinois · implied b. ~1928 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | William Jr. |
| Relationship to Head | Grand son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Madison-County, Illinois
Son, age 12
Madison-County, Illinois · implied b. ~1928 — 9 household members
| Surname | Hardy |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Alton |
| 1935 Residence (County) | Madison |
| Highest Grade | No 5 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Hardy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Hardy
Son · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
Marian Hardy
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Hardy
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Hardy
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Hardy
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Hardy
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alphonso Hardy
Sibling · 1940 · age 3
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 — Madison-County, Illinois
Open full size
1940 US Federal Census — Madison-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00849-00799)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Runyan | 48 | Head | Shipping Dept | Kentucky |
| 2 | A. William Rainley | 49 | Head | Lather | Illinois |
| 3 | Clara Rainley | 52 | wife | — | Indiana |
| 4 | Robert Rainley | 19 | son | — | Missouri |
| 5 | May Rainley | 18 | daughter | Hospital Cleaning | Missouri |
| 6 | James Van Horn | 24 | Head | Gauger | Illinois |
| 7 | Ruth Van Horn | 21 | wife | — | Illinois |
| 8 | Eileen Lela Van Horn | 1 | daughter | — | Illinois |
| 9 | Ernest Pelot | 33 | Head | Treader | Illinois |
| 10 | Florence Pelot | 33 | wife | — | Illinois |
| 11 | Joe Smalley | 44 | Head | Take-Out | Arkansas |
| 12 | Johnnie Smalley | 40 | wife | — | Arkansas |
| 13 | Edsel Smalley | 17 | son | — | Arkansas |
| 14 | Agusta Smalley | 13 | daughter | — | Illinois |
| 15 | Lorena Smalley | 8 | daughter | — | Illinois |
| 16 | Junior Smalley | 4 | son | — | Illinois |
| 17 | John Wesley Smalley | 2 | son | — | Illinois |
| 18 | William Hardy | 46 | Head | Sewer Con. | Alabama |
| 19 | Thelma Hardy | 35 | wife | — | Illinois |
| 20 | Harold Hardy | 14 | son | — | Illinois |
| 21 | William Hardy THIS PERSON | 12 | son | — | Illinois |
| 22 | Bernice Hardy | 11 | daughter | — | Illinois |
| 23 | Marian Hardy | 9 | daughter | — | Illinois |
| 24 | George Hardy | 5 | son | — | Illinois |
| 25 | Alphonso Hardy | 3 | son | — | Illinois |
| 26 | Richard Hardy | 1 | son | — | Illinois |
| 27 | H. William Greenwell | 74 | Head | — | Indiana |
| 28 | Bertha Greenwell | 59 | wife | — | Kentucky |
| 29 | Margaret Greenwell | 18 | daughter | Maid | Illinois |
| 30 | Lee Roy Hawkins | 35 | Head | Road Construction | Illinois |
| 31 | Maudie Hawkins | 29 | wife | — | Missouri |
| 32 | Hymes Miller | 46 | Head | Motorman | Mississippi |
| 33 | Mary Miller | 34 | wife | — | Louisiana |
| 34 | Eleanor Miller | 17 | daughter | School Cleaning | Louisiana |
| 35 | Leo Miller | 14 | son | — | Louisiana |
| 36 | H. Joseph Miller | 13 | son | — | Illinois |
| 37 | B. Mary Miller | 11 | daughter | — | Illinois |
| 38 | Reaile Miller | 5 | daughter | — | Illinois |
| 39 | Ray James Miller | 4 | son | — | Illinois |
| 40 | John Miller | 3 | son | — | 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)