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Jens Jensen — 1930 US Census Record
Model Tree available1930 United States Federal Census · Woodbury, Iowa
Our Model Tree links this Jens Jensen across the 1920, 1930 and 1940 US Censuses in Woodbury, Iowa (XGBoost, ~Confirmed), with identified parents Johnna — first a son (b.~1907), then head of a 2-person household.
Age 23
b. ~1907
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Woodbury, Iowa |
| Surname | Jensen |
| Given Name | Jens |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Germany |
| Additional Details | |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Union Township |
| Est. Birth Year | ~1907 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Jens | Age | Birth yr |
|---|---|---|---|---|
| Jens Jensen | Son | — | 23 | ~1907 |
| Johnna Munson | Head | — | 54 | ~1876 |
Census Appearances
1920
Woodbury, Iowa
Other, age 13
Woodbury, Iowa · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jansen |
| Given Name | Jens |
| Relationship to Head | step son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Schleswig-Holstein |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Woodbury, Iowa
Son, age 23
Woodbury, Iowa · implied b. ~1907 — 2 household members
| Surname | Jensen |
| Given Name | Jens |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Other, age 32
Woodbury-County, Iowa · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jansen |
| Given Name | Jens |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Woodbury |
| Occupation | farmer |
| Industry | rented farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 452 |
| Highest Grade | 7 |
| 1935 Residence | Iowa |
| 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 Jens Jensen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Johnna Munson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Johnna Munson
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jens Jensen
Son · 1930 · age 23 · b. ~1907 · 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 — Woodbury, Iowa
Open full size
1930 US Federal Census — Woodbury, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel691:0155)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John C. Seehusen | 54 | Head | Laborer | Iowa |
| 52 | Nellie Seehusen | 47 | Wife | — | Iowa |
| 53 | Gladys Seehusen | 18 | Daughter | — | Iowa |
| 54 | Frank A. Michaelis | 51 | Head | Manager | Iowa |
| 55 | Mayme Michaelis | 44 | Wife | — | Iowa |
| 56 | Jessie Cockburn | 24 | Sister-in-law | Teacher | Iowa |
| 57 | Harry Dunbar | 55 | Head | Farmer | Illinois |
| 58 | Elizabeth Dunbar | 58 | Wife | — | Germany |
| 59 | William H. Bento | 63 | Head | Farmer | Illinois |
| 60 | Mary P. Bento | 62 | Wife | — | Iowa |
| 61 | Harry Browning | 41 | Head | Contractor | Iowa |
| 62 | Mabel M. Browning | 40 | Wife | — | Nebraska |
| 63 | Maxine Browning | 11 | Daughter | — | Iowa |
| 64 | Arly Browning | 1 | Daughter | — | Iowa |
| 65 | Frank D. Smith | 75 | Brother-in-law | — | New York |
| 66 | Alice A. Smith | 75 | Sister-in-law | — | New York |
| 67 | Clarence E. Newton | 41 | Head | Farmer | Iowa |
| 68 | Clara M. Newton | 36 | Wife | — | Iowa |
| 69 | Lois J. Newton | 8 | Daughter | — | Iowa |
| 70 | Eugene J. Galvin | 34 | Head | Farmer | Iowa |
| 71 | Herbert M. Denby | 62 | Head | Farm Laborer | South Carolina |
| 72 | Mabel A. Denby | 25 | Daughter | — | South Carolina |
| 73 | Joe W. Denby | 21 | Son | Farm Laborer | Iowa |
| 74 | George R. Denby | 19 | Son | Farm Laborer | Iowa |
| 75 | Harold Denby | 16 | Son | — | Iowa |
| 76 | John C. Volkert | 44 | Head | Farmer | Illinois |
| 77 | Clara A. Volkert | 42 | Wife | — | Illinois |
| 78 | Earl H. Volkert | 17 | Son | Farm Laborer | Iowa |
| 79 | Dorothy J. Volkert | 16 | Daughter | — | Iowa |
| 80 | Laffey A. Volkert | 11 | Son | — | Iowa |
| 81 | Alfred J. Volkert | 7 | Son | — | Iowa |
| 82 | Merle L. Volkert | 2 | Son | — | Iowa |
| 83 | Albert Jones | 43 | Head | Farmer | Iowa |
| 84 | Katherine M. Jones | 43 | Wife | — | Iowa |
| 85 | Basil V. Jones | 18 | Son | — | Iowa |
| 86 | Arthur S. Burnham | 54 | Head | Farmer | Nebraska |
| 87 | Clara Burnham | 51 | Wife | — | Iowa |
| 88 | Arthur S. Jr. Burnham | 21 | Son | Farm Laborer | Iowa |
| 89 | Harold C. Burnham | 20 | Son | Farm Laborer | Iowa |
| 90 | Alfred H. Groezinger | 31 | Head | Farmer | Iowa |
| 91 | Lilly P. Groezinger | 26 | Wife | — | Iowa |
| 92 | Henry D. Groezinger | 1 | Son | — | Iowa |
| 93 | James A. Groezinger | 0 | Son | — | Iowa |
| 94 | Dorothy Nefendahl | 20 | Servant | Servant | Iowa |
| 95 | Ferdinand H. Florke | 49 | Head | Farmer | Germany |
| 96 | Dorothy Florke | 48 | Wife | — | Iowa |
| 97 | Emma E. Florke | 14 | Daughter | — | Iowa |
| 98 | Mary Florke | 89 | Mother | — | Germany |
| 99 | Johnna Munson | 54 | Head | — | Germany |
| 100 | Jens Jensen THIS PERSON | 23 | Son | Farmer | Iowa |
Pedigree Summary
Jens
Gen 1 · 1 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)