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Peter Hansen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Black-Hawk-County, Iowa
Our Model Tree links this Peter Hansen across the 1920, 1930 and 1940 US Censuses in Black-Hawk-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 9-person household.
Age 50
b. ~1890
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Black-Hawk-County, Iowa |
| Surname | Hansen |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Falls City |
| 1935 Residence (County) | Black Hawk |
| Additional Details | |
| Occupation | Steamfitter |
| Industry | Water Dept City |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1472 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Steamfitter |
| Township / Ward | Cedar Falls City |
| Est. Birth Year | ~1890 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Peter | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Hansen | Daughter | — | 17 | ~1923 |
| Doris Hansen | Daughter | — | 19 | ~1921 |
| Kyle Forney | Other | — | 21 | ~1919 |
| Rosa Hansen | Spouse | — | 48 | ~1892 |
| Howard Hansen | Son | — | 21 | ~1919 |
| Peter Hansen | Head | — | 50 | ~1890 |
| Rose Hansen | Daughter | — | 9 | ~1931 |
| Thelma Hansen | Daughter | — | 15 | ~1925 |
| Maxine Hansen | Daughter | — | 13 | ~1927 |
Census Appearances
1920
Black Hawk, …
Head, age 29
Black Hawk, Iowa · implied b. ~1891 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hansen |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Black Hawk, …
Head, age 40
Black Hawk, Iowa · implied b. ~1890 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hanson |
| Given Name | Pete |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| Year of Immigration | 1907 |
| Age at First Marriage | 25 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 15 |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Black-Hawk-County, Iowa
Head, age 50
Black-Hawk-County, Iowa · implied b. ~1890 — 9 household members
| Surname | Hansen |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Falls City |
| 1935 Residence (County) | Black Hawk |
| Occupation | Steamfitter |
| Industry | Water Dept City |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1472 |
| Highest Grade | 8 |
| 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 Peter Hansen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Peter Hansen
Head · 1940 · age 50 · b. ~1890 · Iowa
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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
40 people indexed on this census page (nara:1940:m-t0627-01139-00330)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Belva Wunker | 21 | Wife | — | Iowa |
| 42 | Richard Wunker | 2 | Son | — | — |
| 43 | Glenn A. Enloe | 34 | Head | Proprietor | Iowa |
| 44 | Dorothy Enloe | 31 | Wife | Floor Girl | Iowa |
| 45 | Jack Vaughn | 18 | Nephew | Helper | Wisconsin |
| 46 | Edwin C. Enloe | 69 | Head | Custodian | Wisconsin |
| 47 | Cora Enloe | 70 | Wife | — | Indiana |
| 48 | Edward Highy | 75 | Head | — | New York |
| 49 | Miller Westergaard | 55 | Roomer | Farm Hand | Denmark |
| 50 | Sophie Lehman | 50 | Housekeeper | Laborer | Iowa |
| 51 | Kristine Lehman | 45 | Housekeeper | Cook | Denmark |
| 52 | Marie Barnes | 35 | Head | Supt | Minnesota |
| 53 | Elva Hansen | 21 | Maid | Maid | Iowa |
| 54 | Julia Coursant | 64 | Housekeeper | Housekeeper | Iowa |
| 55 | Dora Smith | 36 | Nurse | Registered Nurse | Iowa |
| 56 | Jean Conklin | 27 | Nurse | Registered Nurse | Minnesota |
| 57 | Bertha Mead | 30 | Nurse | Registered Nurse | Iowa |
| 58 | Dorothy Fullenwider | 22 | Nurse | Registered Nurse | Iowa |
| 59 | Bertha Rohr | 30 | Nurse | Registered Nurse | Iowa |
| 60 | Helga K. Nielsen | 40 | Nurse | Registered Nurse | Iowa |
| 61 | Maude Haines | 35 | Nurse | Registered Nurse | Iowa |
| 62 | Karla Jensen | 25 | Nurse | Registered Nurse | Iowa |
| 63 | Luella Wolter | 23 | Nurse | Registered Nurse | Minnesota |
| 64 | Doris Heckland | 22 | Nurse | Registered Nurse | Iowa |
| 65 | Jennie Larsen | 59 | Maid | Maid | Iowa |
| 66 | Isabel Norton | 30 | Technician | Technician | Illinois |
| 67 | Peter Hansen THIS PERSON | 50 | Head | Steamfitter | Iowa |
| 68 | Rosa Hansen | 48 | Wife | — | Iowa |
| 69 | Doris Hansen | 19 | Daughter | Maid | Iowa |
| 70 | Marjorie Hansen | 17 | Daughter | Maid | Iowa |
| 71 | Howard Hansen | 21 | Son | Laborer | Iowa |
| 72 | Thelma Hansen | 15 | Daughter | — | Iowa |
| 73 | Maxine Hansen | 13 | Daughter | — | Iowa |
| 74 | Rose Mary Hansen | 9 | Daughter | — | Iowa |
| 75 | Kyle F. Forney | 21 | Lodger | Laborer | Iowa |
| 76 | — | None | — | — | — |
| 77 | Wilbur Dixon | 38 | Head | Laborer | Iowa |
| 78 | Mettina Dixon | 34 | Wife | — | Holland |
| 79 | Forrest Dixon | 14 | Son | — | Iowa |
| 80 | — | None | — | — | — |
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)