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Helen Hoffman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clayton-County, Iowa
Our Model Tree links this Helen Hoffman across the 1920, 1930 and 1940 US Censuses in Clayton-County, Iowa (XGBoost, ~Confirmed), with identified parents Arthur & Will — first a spouse (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clayton-County, Iowa |
| Surname | Hoffman |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Volga Twp |
| 1935 Residence (County) | Clayton |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 7 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Volga Twp |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Shirley Hoffman | Daughter | — | 1 | ~1939 |
| Dale Hoffman | Son | — | 4 | ~1936 |
| Bertram Hoffman | Son | — | 7 | ~1933 |
| Helen Hoffman | Spouse | — | 24 | ~1916 |
| Wilbert Hoffman | Head | — | 32 | ~1908 |
Census Appearances
1920
Clayton, Iowa
Daughter, age 3
Clayton, Iowa · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Helene |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Clayton, Iowa
Daughter, age 13
Clayton, Iowa · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Helena B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Clayton-County, Iowa
Spouse, age 24
Clayton-County, Iowa · implied b. ~1916 — 5 household members
| Surname | Hoffman |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Volga Twp |
| 1935 Residence (County) | Clayton |
| Income (1939) | 0 |
| Highest Grade | H 7 |
| 1935 Residence | Same house |
| 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 Hoffman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Hoffman (~0.92 confidence) and father Will Hoffman (~0.92 confidence) and mother Mabel Hoffman (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Hoffman
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Will Hoffman
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Mabel Hoffman
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Hoffman
Spouse · 1940 · age 24 · b. ~1916 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clayton-County, Iowa
Open full size
1940 US Federal Census — Clayton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01149-00700)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Adolph Kruif | 72 | Head | Retired | Iowa |
| 2 | Edna Kruif | 31 | Daughter | — | Iowa |
| 3 | Frank Ameling | 52 | Head | Farmer | Iowa |
| 4 | Clara Ameling | 48 | Wife | — | Iowa |
| 5 | Louis Ameling | 13 | Son | — | Iowa |
| 6 | Jean Ameling | 11 | Daughter | — | Iowa |
| 7 | Joan Ameling | 9 | Son | — | Iowa |
| 8 | Wilbert Hoffman | 32 | Head | Laborer | Iowa |
| 9 | Helen Hoffman THIS PERSON | 24 | Wife | — | Iowa |
| 10 | Bertram Hoffman | 7 | Son | — | Iowa |
| 11 | Dale Hoffman | 4 | Son | — | Iowa |
| 12 | Shirley Hoffman | 1 | Daughter | — | Iowa |
| 13 | Realty Berns | 53 | Head | Farming | Iowa |
| 14 | Adeline Berns | 51 | Wife | — | Iowa |
| 15 | Zola Berns | 29 | Daughter | Telephone Operator | Iowa |
| 16 | Harold Berns | 21 | Son | Laborer | Iowa |
| 17 | Herman Oehler | 70 | Head | Woodcutter | Germany |
| 18 | Millie Oehler | 38 | Wife | — | Iowa |
| 19 | Ray Oehler | 13 | Son | — | Iowa |
| 20 | Herman Jr. Oehler | 10 | Son | — | Iowa |
| 21 | John Costigan | 49 | Head | Mail Carrier | Iowa |
| 22 | Gertrude Costigan | 42 | Wife | — | Iowa |
| 23 | Dorothy Costigan | 25 | Daughter | Primary Teacher | Iowa |
| 24 | Clark Costigan | 23 | Son | Bookkeeper | Iowa |
| 25 | Betty Costigan | 17 | Daughter | — | Iowa |
| 26 | Fred Portwine | 59 | Head | Manager | Iowa |
| 27 | Lydia Portwine | 44 | Wife | — | Iowa |
| 28 | Lloyd Portwine | 26 | Son | Laborer | Iowa |
| 29 | Beulah Portwine | 21 | Daughter | — | Iowa |
| 30 | Juanita Portwine | 9 | Daughter | — | Iowa |
| 31 | Joe Collins | 33 | Head | Truck Manager | Iowa |
| 32 | John Ameling | 32 | Head | Laborer | Iowa |
| 33 | Anna Ameling | 68 | Mother | — | Germany |
| 34 | William Strachein | 58 | Head | Operator | Iowa |
| 35 | Anna Strachein | 65 | Wife | — | Iowa |
| 36 | Gottlieb Strachein | 63 | Brother | Hired Man | Iowa |
| 37 | Howard Kruif | 31 | Head | Attendant | Iowa |
| 38 | Pauline Kruif | 21 | Wife | — | Iowa |
| 39 | Jacob Thein | 60 | Head | Laborer | Iowa |
| 40 | Reba Thein | 63 | Wife | — | Iowa |
Pedigree Summary
Helen
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)