HT
Helen Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Taylor-County, Iowa
Our Model Tree links this Helen Thompson across the 1920, 1930 and 1940 US Censuses in Taylor-County, Iowa (XGBoost, ~Confirmed), with identified parents William & Ruby — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Taylor-County, Iowa |
| Surname | Thompson |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dallas Township |
| 1935 Residence (County) | Taylor |
| Additional Details | |
| Hours Worked | 5 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Dallas Township |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Larhue Thompson | Daughter | — | 14 | ~1926 |
| Helen Thompson | Daughter | — | 22 | ~1918 |
| William Thompson | Head | — | 50 | ~1890 |
Census Appearances
1920
Taylor, Iowa
Daughter, age 2
Taylor, Iowa · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Helen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Kansas |
| Mother's Birthplace | South Dakota |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Taylor, Iowa
Daughter, age 12
Taylor, Iowa · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Helen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Kansas |
| Mother's Birthplace | S. Dakota |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Taylor-County, Iowa
Daughter, age 22
Taylor-County, Iowa · implied b. ~1918 — 3 household members
| Surname | Thompson |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dallas Township |
| 1935 Residence (County) | Taylor |
| Hours Worked | 5 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Thompson (~0.92 confidence) and mother Ruby Thompson (~0.92 confidence) and mother Ruby Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Thompson
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Ruby Thompson
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Ruby Thompson
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Thompson
Daughter · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
Larhue Thompson
Sibling · 1940 · age 14
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 — Taylor-County, Iowa
Open full size
1940 US Federal Census — Taylor-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01207-00801)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elsworth Alfire | 70 | Brother | — | Iowa |
| 42 | Frank Tackett | 63 | Head | Farmer | Iowa |
| 43 | Laura Tackett | 51 | Wife | — | Nebraska |
| 44 | Juanita Tackett | 13 | Daughter | — | Iowa |
| 45 | Marjorie Tackett | 10 | Daughter | — | Iowa |
| 46 | Etta Tackett | 85 | Mother | — | Iowa |
| 47 | Elmer Jr. Stites | 38 | Head | Farmer | Nebraska |
| 48 | Lela E. Stites | 38 | Wife | — | Nebraska |
| 49 | Robert D. Stites | 4 | Son | — | Missouri |
| 50 | Byron E. Stites | 1 | Son | — | Kansas |
| 51 | Frank P. Harland | 48 | Head | Farmer | Iowa |
| 52 | Robert Mcclarnon | 49 | Head | Farmer | Iowa |
| 53 | Elsie L. Mcclarnon | 28 | Wife | — | Iowa |
| 54 | Elmer Reinke | 36 | Head | Farmer | Illinois |
| 55 | Wilma Reinke | 39 | Wife | — | Nebraska |
| 56 | Ermel E. Todd | 38 | Head | Farmer | Missouri |
| 57 | Lola B. Todd | 35 | Wife | — | Missouri |
| 58 | Dora L. Todd | 14 | Daughter | — | Missouri |
| 59 | William F. Mohrkamp | 37 | Head | Farmer | Indiana |
| 60 | Emma L. Mohrkamp | 49 | Wife | — | Wyoming |
| 61 | Robert M. Corum | 54 | Head | Farmer | Missouri |
| 62 | Edna E. Corum | 44 | Wife | — | Iowa |
| 63 | Ruth E. Corum | 23 | Daughter | — | Iowa |
| 64 | Katherine C. Corum | 83 | Mother | — | Kentucky |
| 65 | M. Leroy | 21 | Son | Farm Hand | Nebraska |
| 66 | Vernon G. Wilson | 40 | Head | Farmer | Iowa |
| 67 | Opal M. Wilson | 34 | Wife | — | Iowa |
| 68 | Edna I. Wilson | 18 | Daughter | — | Iowa |
| 69 | Delora M. Wilson | 15 | Daughter | — | Iowa |
| 70 | Erma L. Wilson | 9 | Daughter | — | Iowa |
| 71 | Harold W. Wilson | 6 | Son | — | Iowa |
| 72 | William E. Thompson | 50 | Head | Farmer | Kansas |
| 73 | Helen M. Thompson THIS PERSON | 22 | Daughter | — | Iowa |
| 74 | Larhue D. Thompson | 14 | Daughter | — | Iowa |
| 75 | Merle E. Harland | 31 | Head | Farmer | Iowa |
| 76 | Pauline D. Harland | 34 | Wife | — | Iowa |
| 77 | Melvyn M. Harland | 9 | Son | — | Iowa |
| 78 | Darris J. Harland | 8 | Daughter | — | Iowa |
| 79 | Harry J. Harland | 50 | Head | Farmer | Iowa |
| 80 | Claris J. Harland | 49 | Wife | — | Iowa |
Pedigree Summary
Helen + 1 sibling
Gen 1 · 3 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)