HP
Hans Peterson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Black Hawk, Iowa
Our Model Tree links this Hans Peterson across the 1910, 1920 and 1930 US Censuses in Black Hawk, Iowa (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 6-person household.
Age 55
b. ~1865
Male
Head
Born: Denmark
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Black Hawk, Iowa |
| Surname | Peterson |
| Given Name | Hans C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Denmark |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | denmark |
| Township / Ward | Cedar Falls City |
| Est. Birth Year | ~1865 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Hans | Age | Birth yr |
|---|---|---|---|---|
| Hans Peterson | Head | — | 55 | ~1865 |
| Sigrid Peterson | Son | — | 21 | ~1899 |
| Edwin Peterson | Son | — | 9 | ~1911 |
| Lillian Peterson | Daughter | — | 18 | ~1902 |
| Florina Peterson | Daughter | — | 15 | ~1905 |
| Caroline Peterson | Spouse | — | 58 | ~1862 |
Census Appearances
1910
Buena Vista, …
Head, age 46
Buena Vista, Iowa · implied b. ~1864 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Hans C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Denmark |
| Years Married | 23 |
| Year of Immigration | 1883 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Gen. Farm |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1920
Black Hawk, …
Head, age 55
Black Hawk, Iowa · implied b. ~1865 — 6 household members
| Surname | Peterson |
| Given Name | Hans C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Denmark |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | denmark |
1930
Black Hawk, …
Head, age 65
Black Hawk, Iowa · implied b. ~1865 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Hans C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1883 |
| Age at First Marriage | 21 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Laborer |
| Industry | Gate factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Value / Rent | 4500 |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Hans Peterson across 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Hans Peterson
Head · 1920 · age 55 · b. ~1865 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Black Hawk, Iowa
Open full size
1920 US Federal Census — Black Hawk, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu478unit:0189)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Lawrence | 74 | Head | — | England |
| 52 | Sarah Lawrence | 67 | Wife | — | New York |
| 53 | Lucy M. Riggs | 58 | Head | Teacher | New York |
| 54 | Fred Schifferlein | 65 | Head | — | Iowa |
| 55 | Sofia Schifferlein | 59 | Wife | — | Iowa |
| 56 | Arthur J. Jennings | 44 | Head | Retail Merchant | Iowa |
| 57 | Augusta Jennings | 34 | Wife | — | Connecticut |
| 58 | Marjorie Jennings | 13 | Step-daughter | — | Michigan |
| 59 | Reva Milroy | 21 | Lodger | Teacher | Iowa |
| 60 | Arnold C. Fisher | 64 | Head | — | Ohio |
| 61 | Nellie Fisher | 45 | Wife | — | New York |
| 62 | Zella Fisher | 21 | Daughter | — | Iowa |
| 63 | Arnold Fisher | 19 | Son | Driver | Iowa |
| 64 | Robert Fisher | 17 | Son | Printer | Iowa |
| 65 | Letha Fisher | 14 | Daughter | — | Iowa |
| 66 | Nellie Fisher | 12 | Daughter | — | Iowa |
| 67 | Harvey Fisher | 11 | Son | — | Iowa |
| 68 | Edmond Fisher | 7 | Son | — | Iowa |
| 69 | Charles H. Sellen | 55 | Head | Mason | Iowa |
| 70 | Frances Sellen | 55 | Wife | — | Iowa |
| 71 | John Sellen | 22 | Son | Barber | Iowa |
| 72 | Jeanette Sellen | 19 | Daughter | — | Iowa |
| 73 | Jacob J. Millison | 46 | Head | Engineer | Missouri |
| 74 | Vida Millison | 26 | Wife | — | Kansas |
| 75 | Julia Millison | 8 | Son | — | Missouri |
| 76 | Enzil Millison | 6 | Son | — | Missouri |
| 77 | Melvin Millison | 4 | Son | — | Missouri |
| 78 | Pearl Millison | 1 | Son | — | Missouri |
| 79 | Anna Oleson | 42 | Head | Dressmaker | Iowa |
| 80 | Hans C. Peterson THIS PERSON | 55 | Head | — | Denmark |
| 81 | Caroline Peterson | 58 | Wife | — | Denmark |
| 82 | Sigrid Peterson | 21 | Son | Farmer | Iowa |
| 83 | Lillian Peterson | 18 | Daughter | — | Iowa |
| 84 | Florina Peterson | 15 | Daughter | — | Iowa |
| 85 | Edwin Peterson | 9 | Son | — | Iowa |
| 86 | Xavier Abele | 79 | Head | — | Bavaria |
| 87 | Anna Abele | 69 | Wife | — | Prussia |
| 88 | Gertrude Abele | 38 | Daughter | Bookkeeper | Iowa |
| 89 | Clara Abele | 33 | Daughter | — | Iowa |
| 90 | Anthony Abele | 10 | Grandson | — | Iowa |
| 91 | Laura Irwin | 24 | Head | Tailoress | Iowa |
| 92 | Walter Irwin | 34 | Brother | Repairer | Iowa |
| 93 | Hans C. Hansen | 47 | Head | Machinist | Denmark |
| 94 | Dora Hansen | 47 | Wife | — | Denmark |
| 95 | Blanch Hansen | 11 | Daughter | — | Illinois |
| 96 | Edith Hansen | 9 | Daughter | — | Illinois |
| 97 | Leah Hansen | 5 | Daughter | — | Illinois |
| 98 | Oreal Hansen | 3 | Son | — | Iowa |
| 99 | Emily Hansen | 0 | Daughter | — | Illinois |
| 100 | Earnest Hansen | 17 | Son | Installer | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)