HP
Henry Peterson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Johnson, Iowa
Our Model Tree links this Henry Peterson across the 1920, 1930 and 1940 US Censuses in Johnson, Iowa (XGBoost, ~Confirmed), with identified parents Ulygo & Marie — first a head (b.~1902), then head of a 4-person household.
Age 28
b. ~1902
Male
Head
Born: Denmark
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Johnson, Iowa |
| Surname | Peterson |
| Given Name | Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | First papers filed |
| Year of Immigration | 1908 |
| Age at First Marriage | 23 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Scott Township |
| Est. Birth Year | ~1902 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Henry | Age | Birth yr |
|---|---|---|---|---|
| Henry Peterson | Head | — | 28 | ~1902 |
| Jennie Peterson | Other | — | 22 | ~1908 |
| Robert Peterson | Son | — | 1 | ~1929 |
| Richard Peterson | Son | — | 2 | ~1928 |
Census Appearances
1920
Johnson, Iowa
Son, age 18
Johnson, Iowa · implied b. ~1902 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Denmark |
| Year of Immigration | 1902 |
| Naturalization Status | Alien |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1930
Johnson, Iowa
Head, age 28
Johnson, Iowa · implied b. ~1902 — 4 household members
| Surname | Peterson |
| Given Name | Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | First papers filed |
| Year of Immigration | 1908 |
| Age at First Marriage | 23 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Johnson-County, Iowa
Head, age 38
Johnson-County, Iowa · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Henry |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Scott Township |
| 1935 Residence (County) | Johnson |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 66 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| 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 Henry Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ulygo Petersen (~0.92 confidence) and mother Marie Petersen (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ulygo Petersen
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Marie Petersen
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Henry Peterson
Head · 1930 · age 28 · b. ~1902 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Johnson, Iowa
Open full size
1930 US Federal Census — Johnson, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel662:0030)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frank Patera | 42 | Head | Farmer | Iowa |
| 52 | Helen Patera | 37 | Wife H | — | Iowa |
| 53 | Frank Jr. Patera | 16 | Son | — | Iowa |
| 54 | Dorothy Patera | 14 | Daughter | — | Iowa |
| 55 | Mabel Patera | 12 | Daughter | — | Iowa |
| 56 | Gladys Patera | 9 | Daughter | — | Iowa |
| 57 | Leona Patera | 7 | Daughter | — | Iowa |
| 58 | Berniece Patera | 5 | Daughter | — | Iowa |
| 59 | William Patera | 80 | Lodger | Laborer | Iowa |
| 60 | A. L. Wescott | 65 | Head | Farmer | New York State |
| 61 | Elizabeth Wescott | 63 | Wife H | — | Iowa |
| 62 | Milton S. Wescott | 19 | Son | Laborer | Iowa |
| 63 | Florence Wescott | 21 | Daughter | Teacher | Iowa |
| 64 | Harold Wescott | 16 | Son | — | Iowa |
| 65 | Rollin Wescott | 12 | Son | — | Iowa |
| 66 | William H. Hunter | 54 | Head | Farmer | Iowa |
| 67 | Arminta M. Hunter | 56 | Wife H | — | Illinois |
| 68 | Raymond L. Oustrich | 34 | Head | Laborer | Ohio |
| 69 | Winona Oustrich | 40 | Wife H | — | Iowa |
| 70 | Mary Etta Oustrich | 11 | Daughter | — | Iowa |
| 71 | Ralph Oustrich | 8 | Son | — | Iowa |
| 72 | Maurice Oustrich | 7 | Son | — | Iowa |
| 73 | Phillip Oustrich | 1 | Daughter | — | Iowa |
| 74 | John Riffey | 38 | Head | Laborer | Tennessee |
| 75 | Alice Riffey | 29 | Wife H | — | Iowa |
| 76 | Mary Riffey | 9 | Daughter | — | South Dakota |
| 77 | William Riffey | 8 | Son | — | South Dakota |
| 78 | Marie Riffey | 4 | Daughter | — | Iowa |
| 79 | Robert Riffey | 3 | Son | — | Iowa |
| 80 | Philip Riffey | 2 | Son | — | Iowa |
| 81 | Janet Riffey | 0 | Daughter | — | Iowa |
| 82 | Henry Peterson THIS PERSON | 28 | Head | Farmer | Denmark |
| 83 | Jennie Peterson | 22 | Wife H | — | Iowa |
| 84 | Richard Peterson | 2 | Son | — | Iowa |
| 85 | Robert Peterson | 1 | Son | — | Iowa |
| 86 | Niels Peterson | 55 | Head | Farmer | Denmark |
| 87 | Marie Peterson | 50 | Wife H | — | Denmark |
| 88 | Martha Peterson | 17 | Daughter | — | Iowa |
| 89 | Ruth Peterson | 11 | Daughter | — | Iowa |
| 90 | Norman Peterson | 8 | Son | — | Iowa |
| 91 | Barbara Peterson | 6 | Adp. Daughter | — | Iowa |
| 92 | Henry Russmagell | 76 | Head | Farmer | Pennsylvania |
| 93 | Lila Russmagell | 41 | Daughter H | — | Iowa |
| 94 | Lola Russmagell | 20 | Daughter | — | Iowa |
| 95 | Floyd Russmagell | 21 | Son | Laborer | Iowa |
| 96 | John Gilpin | 64 | Head | Farmer | Ireland |
| 97 | Ada Gilpin | 65 | Wife H | — | Ireland |
| 98 | Joe Gilpin | 34 | Son | Laborer | Iowa |
| 99 | Frank Gilpin | 32 | Son | Laborer | Iowa |
| 100 | Agnes Gilpin | 29 | Daughter | — | Iowa |
Pedigree Summary
Henry
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)