PH
Peter Hansen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Calhoun-County, Iowa
Our Model Tree links this Peter Hansen across the 1920, 1930 and 1940 US Censuses in Calhoun-County, Iowa (XGBoost, ~Confirmed), with identified parents Christ & Christ — first a son (b.~1915), then head of a 8-person household.
Age 25
b. ~1915
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calhoun-County, Iowa |
| Surname | Hansen |
| Given Name | Peter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Pomeroy town |
| 1935 Residence (County) | Calhoun |
| Additional Details | |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Pomeroy Town |
| Est. Birth Year | ~1915 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Peter | Age | Birth yr |
|---|---|---|---|---|
| Edward Hansen | Son | — | 12 | ~1928 |
| Peter Hansen | Son | — | 25 | ~1915 |
| Louis Hansen | Son | — | 10 | ~1930 |
| Clarence Hansen | Son | — | 16 | ~1924 |
| Lena Hansen | Daughter | — | 18 | ~1922 |
| Anna Hansen | Spouse | — | 46 | ~1894 |
| Sena Hansen | Daughter | — | 14 | ~1926 |
| Christ Hansen | Head | — | 52 | ~1888 |
Census Appearances
1920
Calhoun, Iowa
Son, age 6
Calhoun, Iowa · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hansen |
| Given Name | Peter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Calhoun, Iowa
Son, age 15
Calhoun, Iowa · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hansen |
| Given Name | Peter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Calhoun-County, Iowa
Son, age 25
Calhoun-County, Iowa · implied b. ~1915 — 8 household members
| Surname | Hansen |
| Given Name | Peter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Pomeroy town |
| 1935 Residence (County) | Calhoun |
| Highest Grade | 3 |
| 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 Peter Hansen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Christ Hansen (~0.92 confidence) and father Christ Hansen (~0.92 confidence) and father Christ Hansen (~0.92 confidence) and mother Anna Hansen (~0.92 confidence) and mother Anna Hansen (~0.92 confidence) and mother Gertie Hansen (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Christ Hansen
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Christ Hansen
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Christ Hansen
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Anna Hansen
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Anna Hansen
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Gertie Hansen
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Peter Hansen
Son · 1940 · age 25 · b. ~1915 · Iowa
★ You are viewing this record
Sibling
Sena Hansen
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Hansen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Hansen
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Hansen
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lena Hansen
Sibling · 1940 · age 18
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 — Calhoun-County, Iowa
Open full size
1940 US Federal Census — Calhoun-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01144-00018)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rudolph Roose | 23 | Son | Interior Decorator | Iowa |
| 2 | Delbert Roose | 23 | Head | Proprietor | Iowa |
| 3 | Marjorie Roose | 20 | Wife | — | Iowa |
| 4 | Elmer Peterson | 60 | Head | — | Illinois |
| 5 | Minnie Peterson | 64 | Wife | — | Sweden |
| 6 | Gordon Henricks | 30 | Head | General Trucking | Iowa |
| 7 | Margaret Henricks | 30 | Wife | — | Oklahoma |
| 8 | Norma June Henricks | 9 | Daughter | — | Iowa |
| 9 | Helen Ann Henricks | 6 | Daughter | — | Iowa |
| 10 | Louis D. Henricks | 1 | Son | — | Iowa |
| 11 | Charles W. Ehlit | 66 | Head | — | Illinois |
| 12 | Lena Ehlit | 63 | Wife | — | Illinois |
| 13 | James H. Kane | 37 | Head | Priest | Connecticut |
| 14 | Alice Alpin | 42 | Housekeeper | Housekeeper | Iowa |
| 15 | Christ Hansen | 52 | Head | Common Laborer | Iowa |
| 16 | Anna Hansen | 46 | Wife | — | Illinois |
| 17 | Peter Hansen THIS PERSON | 25 | Son | — | Iowa |
| 18 | Lena Hansen | 18 | Daughter | — | Iowa |
| 19 | Clarence Hansen | 16 | Son | — | Iowa |
| 20 | Sena Hansen | 14 | Daughter | — | Iowa |
| 21 | Edward Hansen | 12 | Son | — | Iowa |
| 22 | Louis Hansen | 10 | Son | — | Iowa |
| 23 | Jacob W. Smith | 70 | Head | — | Illinois |
| 24 | Emma Smith | 66 | Wife | — | Illinois |
| 25 | Walter Smith | 30 | Son | Waiter | Iowa |
| 26 | Lena Lunn | 38 | Head | — | Iowa |
| 27 | Lawrence Lunn | 21 | Son | Laborer | Iowa |
| 28 | Violet May Lunn | 19 | Daughter | — | Iowa |
| 29 | Helen Ella Lunn | 12 | Daughter | — | Iowa |
| 30 | Harry Peterson | 31 | Head | Proprietor | Iowa |
| 31 | Marie Peterson | 23 | Wife | — | South Dakota |
| 32 | Larry Peterson | 1 | Son | — | Iowa |
| 33 | Luke Schmidt | 79 | Head | Sexton | Germany |
| 34 | Kate Schmidt | 75 | Wife | — | Germany |
| 35 | W. Muehlenthaler | 31 | Head | Salesman | Minnesota |
| 36 | Agnes Muehlenthaler | 28 | Wife | — | Nebraska |
| 37 | Fred Eerland | 37 | Head | Manager | Iowa |
| 38 | Marie Eerland | 43 | Wife | — | Iowa |
| 39 | Marilyn Eerland | 7 | Daughter | — | Iowa |
| 40 | William Briggitt | 58 | Head | Electrician | Iowa |
Pedigree Summary
Peter + 5 siblings
Gen 1 · 6 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)