NP
Nels Peterson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Black Hawk, Iowa
Our Model Tree links this Nels Peterson across the 1910, 1920, 1930 and 1940 US Censuses in Black Hawk, Iowa (XGBoost, ~Confirmed) — first a head (b.~1861), then head of a 3-person household.
Age 69
b. ~1861
Male
Head
Born: Denmark
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Black Hawk, Iowa |
| Surname | Peterson |
| Given Name | Nels |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1893 |
| Age at First Marriage | 30 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | Laborer |
| Industry | Meat packing plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Laborer |
| Township / Ward | Waterloo City |
| Est. Birth Year | ~1861 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Nels | Age | Birth yr |
|---|---|---|---|---|
| Anna Peterson | Daughter | — | 37 | ~1893 |
| Nels Peterson | Head | — | 69 | ~1861 |
| Carrie Peterson | Other | — | 68 | ~1862 |
Census Appearances
1910
Douglas, Nebraska
Other, age 50
Douglas, Nebraska · implied b. ~1860 — 25 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Nels |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Single |
| Birthplace | Denmark |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Laborer |
| Industry | Building |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1920
Black Hawk, …
Head, age 59
Black Hawk, Iowa · implied b. ~1861 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Nels |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1883 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Laborer |
| Industry | Contractor |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth Country | Denmark |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | denmark |
1930
Black Hawk, …
Head, age 69
Black Hawk, Iowa · implied b. ~1861 — 3 household members
| Surname | Peterson |
| Given Name | Nels |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1893 |
| Age at First Marriage | 30 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Laborer |
| Industry | Meat packing plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Black-Hawk-County, Iowa
Head, age 79
Black-Hawk-County, Iowa · implied b. ~1861 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Nels |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 79 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Waterloo |
| 1935 Residence (County) | Blackhawk |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| 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 Nels Peterson across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Nels Peterson
Head · 1930 · age 69 · b. ~1861 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Black Hawk, Iowa
Open full size
1930 US Federal Census — Black Hawk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel642:0915)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Gladys R. | 6 | Daughter | — | Iowa |
| 52 | James J. Neary | 46 | Head | Foreman | Illinois |
| 53 | Mattie Neary | 47 | Wife-H | — | England |
| 54 | Kathleen Neary | 20 | Daughter | Stenographer | Illinois |
| 55 | Virginia Neary | 18 | Daughter | Stenographer | Iowa |
| 56 | Mary J. Neary | 15 | Daughter | — | Iowa |
| 57 | John G. Entwhistle | 57 | Head | Sign Artist | Missouri |
| 58 | Flora I. Entwhistle | 24 | Daughter-H | — | Iowa |
| 59 | Nels Peterson THIS PERSON | 69 | Head | Laborer | Denmark |
| 60 | Carrie M. Peterson | 68 | Wife-H | — | Denmark |
| 61 | Anna M. Peterson | 37 | Daughter | Stenographer | Iowa |
| 62 | Rudolph Kvach | 48 | Head | Fireman | Czechoslovakia |
| 63 | Rose Kvach | 43 | Wife-H | — | Iowa |
| 64 | Ruth Kvach | 24 | Daughter | — | Iowa |
| 65 | George M. Basterdorf | 29 | Head | Carpenter | Iowa |
| 66 | Agnes Basterdorf | 26 | Wife-H | — | Iowa |
| 67 | John Basterdorf | 27 | Brother | Switchman | Iowa |
| 68 | Theodore Basterdorf | 24 | Brother | Trucker | Iowa |
| 69 | Arthur Frost | 27 | Roomer | Office Clerk | Iowa |
| 70 | Claser Patton | 54 | Head | Laborer | New York |
| 71 | Nettie May Patton | 46 | Wife-H | — | Iowa |
| 72 | Cedric Patton | 22 | Son | Laborer | Iowa |
| 73 | Wayne Patton | 19 | Son | — | Iowa |
| 74 | Alfred Anderson | 24 | Roomer | Welder | Denmark |
| 75 | Robert Brown | 30 | Roomer | Butcher | Iowa |
| 76 | Carrie Fuller | 39 | Head | — | Iowa |
| 77 | Merrill L. Arson | 28 | Head | Trucker | Missouri |
| 78 | Grace L. Arson | 23 | Wife-H | — | Illinois |
| 79 | Delores J. Arson | 2 | Daughter | — | Iowa |
| 80 | Charles F. Franke | 34 | Head | Laborer | Iowa |
| 81 | Pauline H. Franke | 34 | Wife-H | — | Iowa |
| 82 | Effie L. Franke | 11 | Daughter | — | Iowa |
| 83 | Irene V. Franke | 9 | Daughter | — | Iowa |
| 84 | Kenneth C. Franke | 5 | Son | — | Iowa |
| 85 | Shirley M. Franke | 3 | Daughter | — | Iowa |
| 86 | Robert J.E. Franke | 1 | Son | — | Iowa |
| 87 | Thomas Doyle | 64 | Head | Laborer | Irish Free State |
| 88 | Kate Doyle | 62 | Wife-H | — | Irish Free State |
| 89 | Daniel F. Doyle | 32 | Son | Laborer | Iowa |
| 90 | Thomas J. Doyle | 30 | Son | Laborer | Iowa |
| 91 | Kathryn Cole | 25 | Niece | — | Northern Ireland |
| 92 | Fred Fletcher | 55 | Roomer | — | United States |
| 93 | William Merritt | 52 | Head | Oiler-Washer | Texas |
| 94 | Estella A. Merritt | 48 | Wife-H | — | Indiana |
| 95 | Effie J. Merritt | 13 | Daughter | — | Texas |
| 96 | Raymond W. Merritt | 9 | Son | — | Texas |
| 97 | Solomon F. Kittrell | 54 | Head | Laborer | Mississippi |
| 98 | Elizabeth Kittrell | 50 | Wife-H | Laborer | Illinois |
| 99 | Fred C. Kittrell | 24 | Son | — | Iowa |
| 100 | Althea J. Kittrell | 21 | Daughter | Stenographer | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)