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Emma Hansen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Black-Hawk-County, Iowa
Our Model Tree links this Emma Hansen across the 1930 and 1940 US Censuses in Black-Hawk-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 11-person household.
Age 12
b. ~1928
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Black-Hawk-County, Iowa |
| Surname | Hansen |
| Given Name | Emma L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Waterloo |
| 1935 Residence (County) | Blackhawk |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same home |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Waterloo |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Emma | Age | Birth yr |
|---|---|---|---|---|
| Fred Hansen | Head | — | 54 | ~1886 |
| Raymond Hansen | Son | — | 15 | ~1925 |
| Virginia Hansen | Daughter | — | 9 | ~1931 |
| John Hansen | Son | — | 3 | ~1937 |
| Bernice Hansen | Daughter | — | 6 | ~1934 |
| Emma Hansen | Daughter | — | 12 | ~1928 |
| Kathryn Hansen | Daughter | — | 10 | ~1930 |
| Anna Hansen | Spouse | — | 42 | ~1898 |
| Jessie Hansen | Daughter | — | 12 | ~1928 |
| Myrtle Hansen | Daughter | — | 16 | ~1924 |
| Robert Hansen | Son | — | 19 | ~1921 |
Census Appearances
1930
Black Hawk, …
Daughter, age 2
Black Hawk, Iowa · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hansen |
| Given Name | Emma L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Black-Hawk-County, Iowa
Daughter, age 12
Black-Hawk-County, Iowa · implied b. ~1928 — 11 household members
| Surname | Hansen |
| Given Name | Emma L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Waterloo |
| 1935 Residence (County) | Blackhawk |
| Highest Grade | 5 |
| 1935 Residence | Same home |
| 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 Emma Hansen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Emma Hansen
Daughter · 1940 · age 12 · b. ~1928 · Iowa
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Sibling
Virginia Hansen
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Hansen
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Hansen
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrtle Hansen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jessie Hansen
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Hansen
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Hansen
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Hansen
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 — Black-Hawk-County, Iowa
Open full size
1940 US Federal Census — Black-Hawk-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01140-00064)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia M. Ellenberger | 21 | wife | — | Iowa |
| 2 | James G. Ellenberger | 4 | son | — | Iowa |
| 3 | Judith A. Ellenberger | 2 | daughter | — | Iowa |
| 4 | Milton L. Hill | 33 | Head | Machinist | Iowa |
| 5 | Beatrice M. Hill | 30 | Wife | — | Iowa |
| 6 | James M. Hill | 5 | Son | — | Iowa |
| 7 | Harry W. Hill | 31 | Brother | Laborer | Iowa |
| 8 | Earl Shelton | 41 | Head | Butcher | Illinois |
| 9 | Elva M. Shelton | 30 | Wife | — | Illinois |
| 10 | Kyle E. Stoner | 39 | Head | Assembly Man | Iowa |
| 11 | Doris M. Stoner | 36 | Wife | — | Iowa |
| 12 | Marlys E. Stoner | 13 | daughter | — | Iowa |
| 13 | Daryl E. Stoner | 9 | son | — | Iowa |
| 14 | Fred J. Hansen | 54 | Head | Pipe Layer | Norway |
| 15 | Anna M. Hansen | 42 | Wife | — | Iowa |
| 16 | Robert E. Hansen | 19 | Son | Laborer | Iowa |
| 17 | Myrtle L. Hansen | 16 | daughter | Housework | Iowa |
| 18 | Raymond A. Hansen | 15 | son | — | Illinois |
| 19 | Jessie M. Hansen | 12 | daughter | — | Iowa |
| 20 | Emma L. Hansen THIS PERSON | 12 | daughter | — | Iowa |
| 21 | Kathryn A. Hansen | 10 | daughter | — | Iowa |
| 22 | Virginia F. Hansen | 9 | daughter | — | Iowa |
| 23 | Bernice Hansen | 6 | daughter | — | Iowa |
| 24 | John F. Hansen | 3 | son | — | Iowa |
| 25 | Eugene F. Prochaska | 32 | Head | Assembly Man | Iowa |
| 26 | Anna L. Prochaska | 33 | Wife | — | Iowa |
| 27 | Richard E. Prochaska | 1 | Son | — | Iowa |
| 28 | William C. Hilmer | 37 | Head | Sub-Contractor | Iowa |
| 29 | Nelda R. Hilmer | 39 | Wife | — | Iowa |
| 30 | Stanley D. Hilmer | 13 | Son | — | Iowa |
| 31 | Robert W. Hilmer | 11 | Son | — | Iowa |
| 32 | Carroll W. Hilmer | 9 | Son | — | Iowa |
| 33 | Herman Jansen | 26 | Head | Machinist | Iowa |
| 34 | Frances G. Jansen | 23 | Wife | — | Iowa |
| 35 | David H. Jansen | 1 | Son | — | Iowa |
| 36 | Dorothy C. Brocka | 23 | Head | Waitress | Iowa |
| 37 | William F. Brocka | 3 | Son | — | Iowa |
| 38 | Everett E. Brocka | 1 | Son | — | Iowa |
| 39 | Harris C. Rubendall | 39 | Head | Machinist | Iowa |
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)