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Helen Allen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Helen Allen across the 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 10-person household.
Age 14
b. ~1926
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Allen |
| Given Name | Helen N |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Fireworks Sta. |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Fireworks Sta |
| Est. Birth Year | ~1926 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Pearl Allen | Spouse | — | 38 | ~1902 |
| Dewey Allen | Son | — | 19 | ~1921 |
| Dorothy Allen | Daughter | — | 16 | ~1924 |
| Helen Allen | Daughter | — | 14 | ~1926 |
| Betty Allen | Daughter | — | 10 | ~1930 |
| Edward Allen | Son | — | 8 | ~1932 |
| Dewey Allen | Head | — | 41 | ~1899 |
| Rose Allen | Daughter | — | 5 | ~1935 |
| Douglas Allen | Son | — | 3 | ~1937 |
| Daniel Allen | Son | — | 2 | ~1938 |
Census Appearances
1930
St Clair, …
Daughter, age 4
St Clair, Illinois · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
St.-Clair-County, Illinois
Daughter, age 14
St.-Clair-County, Illinois · implied b. ~1926 — 10 household members
| Surname | Allen |
| Given Name | Helen N |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Fireworks Sta. |
| 1935 Residence (County) | St. Clair |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 Helen Allen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Allen
Daughter · 1940 · age 14 · b. ~1926 · Illinois
★ You are viewing this record
Sibling
Edward Allen
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dewey Allen
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Allen
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Douglas Allen
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Allen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Allen
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Allen
Sibling · 1940 · age 10
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 — St.-Clair-County, Illinois
Open full size
1940 US Federal Census — St.-Clair-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00879-00460)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ida B Voral | 66 | Wife | — | Missouri |
| 42 | Ruth Schmisseur | 36 | Daughter | — | Illinois |
| 43 | Ezra E Daniels | 37 | Head | Drill Press Operator | Illinois |
| 44 | Lois E Daniels | 36 | Wife | — | Illinois |
| 45 | George O Seidel | 17 | Step Son | Field Labor | Illinois |
| 46 | Lomer Seidel | 15 | Step Son | — | Illinois |
| 47 | Dewey T Allen | 41 | Head | Switchman | Indiana |
| 48 | Pearl L Allen | 38 | Wife | — | Illinois |
| 49 | Dewey W Allen | 19 | Son | Handy Man | Indiana |
| 50 | Dorothy G Allen | 16 | Daughter | — | Indiana |
| 51 | Helen N Allen THIS PERSON | 14 | Daughter | — | Illinois |
| 52 | Betty E Allen | 10 | Daughter | — | Illinois |
| 53 | Edward J Allen | 8 | Son | — | Illinois |
| 54 | Rose M Allen | 5 | Daughter | — | Illinois |
| 55 | Douglas F Allen | 3 | Son | — | Illinois |
| 56 | Daniel L Allen | 2 | Son | — | Illinois |
| 57 | Lyman Walker | 46 | Head | Carpenter | Illinois |
| 58 | Pearl Walker | 38 | Wife | — | Pennsylvania |
| 59 | Edward Walker | 14 | Son | — | Illinois |
| 60 | James Walker | 12 | Son | — | Illinois |
| 61 | Raymond Walker | 11 | Son | — | Illinois |
| 62 | Kenneth Walker | 10 | Son | — | Illinois |
| 63 | Freeman Walker | 9 | Son | — | Illinois |
| 64 | Robert Walker | 8 | Son | — | Illinois |
| 65 | Mary E Walker | 6 | Daughter | — | Illinois |
| 66 | Verna M Walker | 2 | Daughter | — | Illinois |
| 67 | William Smith | 18 | Step Son | Janitor | Illinois |
| 68 | John L Powers | 27 | Head | Trucker | Tennessee |
| 69 | Ethel Powers | 27 | Wife | — | Illinois |
| 70 | Melvin H Hull | 31 | Head | Mechanic | Illinois |
| 71 | Celia Hull | 37 | Wife | — | Pennsylvania |
| 72 | Sam Hull | 20 | Brother | New Worker | Illinois |
| 73 | Catherine Hull | 19 | Daughter | — | Illinois |
| 74 | David C Jr Haas | 53 | Head | Bridging Iron Worker | Illinois |
| 75 | Amelia J Haas | 47 | Wife | — | Illinois |
| 76 | Loretta J Haas | 19 | Daughter | Sewing Machine Operator | Illinois |
| 77 | David Jr Haas | 17 | Son | — | Illinois |
| 78 | John W Haas | 15 | Son | — | Illinois |
| 79 | Leroy L Haas | 12 | Son | — | Illinois |
| 80 | William C Haas | 49 | Head | Laborer | Illinois |
Related Census Records
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)