HC
Helen Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Henry-County, Illinois
Our Model Tree links this Helen Carlson across the 1920, 1930 and 1940 US Censuses in Henry-County, Illinois (XGBoost, ~Confirmed), with identified parents Elmer & Elmer — first a daughter (b.~1908), then head of a 5-person household.
Age 32
b. ~1908
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Henry-County, Illinois |
| Surname | Carlson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Atkinson Twp |
| 1935 Residence (County) | Henry |
| Additional Details | |
| Occupation | Teacher |
| Industry | Grammar school |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1100 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | Atkinson Twp |
| Est. Birth Year | ~1908 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Wilbert Gustafson | Other | — | 35 | ~1905 |
| Helen Carlson | Daughter | — | 32 | ~1908 |
| Ida Carlson | Spouse | — | 63 | ~1877 |
| Eldon Carlson | Son | — | 27 | ~1913 |
| Elmer Carlson | Head | — | 64 | ~1876 |
Census Appearances
1920
Henry, Illinois
Daughter, age 11
Henry, Illinois · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Helen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Henry, Illinois
Daughter, age 22
Henry, Illinois · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Teacher |
| Industry | Grade School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Henry-County, Illinois
Daughter, age 32
Henry-County, Illinois · implied b. ~1908 — 5 household members
| Surname | Carlson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Atkinson Twp |
| 1935 Residence (County) | Henry |
| Occupation | Teacher |
| Industry | Grammar school |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1100 |
| Highest Grade | H 4 |
| 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 Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Elmer Carlson (~0.92 confidence) and father Elmer Carlson (~0.92 confidence) and father Elmer Carlson (~0.92 confidence) and mother Ida Carlson (~0.92 confidence) and mother Ida Carlson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Elmer Carlson
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Elmer Carlson
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Elmer Carlson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Ida Carlson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Ida Carlson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Carlson
Daughter · 1940 · age 32 · b. ~1908 · Illinois
★ You are viewing this record
Sibling
Eldon Carlson
Sibling · 1940 · age 27
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 — Henry-County, Illinois
Open full size
1940 US Federal Census — Henry-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00811-00406)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carl O Carlson | 30 | Head | Farmer | Illinois |
| 42 | Carl Carlson | 31 | Wife | — | Illinois |
| 43 | Daniel Johnson | 27 | Lodger | Farm Hand | Illinois |
| 44 | Earl O Westlund | 49 | Head | Farmer | Illinois |
| 45 | Violet Westlund | 43 | Wife | — | Illinois |
| 46 | Dean Westlund | 18 | Son | Farm Hand | Illinois |
| 47 | Virgil Westlund | 13 | Son | — | Illinois |
| 48 | Richard Stern | 71 | Father | — | Illinois |
| 49 | John Mckissock | 74 | Head | Farmer | Illinois |
| 50 | Gertrude Mckissock | 36 | Daughter | Teacher | Illinois |
| 51 | Robert Mckissock | 38 | Son | Farm Hand | Illinois |
| 52 | Leo Larson | 30 | Lodger | Farm Hand | Illinois |
| 53 | Elmer D Carlson | 64 | Head | Farmer | Sweden |
| 54 | Ida Carlson | 63 | Wife | — | Sweden |
| 55 | Helen Carlson THIS PERSON | 32 | Daughter | Teacher | Illinois |
| 56 | Eldon Carlson | 27 | Son | Farm Hand | Illinois |
| 57 | Wilbert Gustafson | 35 | Lodger | Farm Hand | Illinois |
| 58 | Peter O Van Keyle | 67 | Head | Farmer | Belgium |
| 59 | Mary Van Keyle | 56 | Wife | — | Belgium |
| 60 | John Van Keyle | 20 | Son | Farm Hand | Illinois |
| 61 | Rose Van Keyle | 13 | Daughter | — | Illinois |
| 62 | Charles R Mcneil | 34 | Head | Mechanic | Illinois |
| 63 | Mary Mcneil | 31 | Wife | — | Illinois |
| 64 | Paul Mcneil | 17 | Son | — | Illinois |
| 65 | Dorothy Mcneil | 11 | Daughter | — | Illinois |
| 66 | Lawrence Mcneil | 9 | Son | — | Illinois |
| 67 | Norman Mcneil | 5 | Son | — | Illinois |
| 68 | Edward D Minnert | 40 | Head | Farmer | Illinois |
| 69 | Rose Minnert | 37 | Wife | — | Illinois |
| 70 | Elaine Minnert | 16 | Daughter | Housework | Illinois |
| 71 | Lorraine Minnert | 13 | Daughter | — | Illinois |
| 72 | Milford D Bently | 32 | Head | Farmer | Illinois |
| 73 | Ruth Bently | 32 | Wife | — | Illinois |
| 74 | William Bently | 10 | Son | — | Illinois |
| 75 | Della Bently | 5 | Daughter | — | Illinois |
| 76 | James Mcneil | 25 | Head | Farm Hand | Illinois |
| 77 | Ida Mcneil | 19 | Wife | — | Illinois |
| 78 | Harry Mcneil | 2 | Nephew | — | Illinois |
| 79 | Alarka D Rahn | 46 | Head | Farmer | Iowa |
| 80 | Annabelle Rahn | 9 | Daughter | — | Illinois |
Pedigree Summary
Helen + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)