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James Jensen — 1930 US Census Record
Model Tree available1930 United States Federal Census · Larimer, Colorado
Our Model Tree links this James Jensen across the 1920, 1930 and 1940 US Censuses in Larimer, Colorado (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1913), then head of a 8-person household.
Age 17
b. ~1913
Male
Son
Born: Colorado
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Larimer, Colorado |
| Surname | Jensen |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Kansas |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | 4 R 69 W |
| Est. Birth Year | ~1913 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ruth Jensen | Daughter | — | 13 | ~1917 |
| Roy Jensen | Son | — | 31 | ~1899 |
| William Jensen | Son | — | 11 | ~1919 |
| Robert Jensen | Son | — | 15 | ~1915 |
| Katherine Jensen | Spouse | — | 53 | ~1877 |
| James Jensen | Head | — | 62 | ~1868 |
| Ethel Jensen | Daughter | — | 19 | ~1911 |
| James Jensen | Son | — | 17 | ~1913 |
Census Appearances
1920
Larimer, Colorado
Son, age 7
Larimer, Colorado · implied b. ~1913 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Larimer, Colorado
Son, age 17
Larimer, Colorado · implied b. ~1913 — 8 household members
| Surname | Jensen |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Larimer-County, Colorado
Son, age 28
Larimer-County, Colorado · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenson |
| Given Name | James, Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Buckeye |
| 1935 Residence (County) | Larimer |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 866 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 James Jensen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Jensen (~0.92 confidence) and father James Jensen (~0.92 confidence) and father James Jenson (~0.92 confidence) and mother Katherine Jensen (~0.92 confidence) and mother Katie Jensen (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Jensen
b. ~1864
Source father
● Household
· direct · ~0.92
Father
James Jensen
b. ~1868
Source father
● Household
· direct · ~0.92
Father
James Jenson
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Katherine Jensen
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Katie Jensen
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Jensen
Son · 1930 · age 17 · b. ~1913 · Colorado
★ You are viewing this record
Sibling
Robert Jensen
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Jensen
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Jensen
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Jensen
Sibling · 1930 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Jensen
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Larimer, Colorado
Open full size
1930 US Federal Census — Larimer, Colorado
Page Contents
50 people indexed on this census page (ia:1930:15thcensus244unit:0851)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter Tribelhorn | 54 | Head | Farmer | Russia |
| 2 | Elizabeth Tribelhorn | 43 | Wife | — | Russia |
| 3 | Frank Lee | 53 | Head | Farmer | Iowa |
| 4 | Ina E. Lee | 42 | Wife | — | Iowa |
| 5 | Mildred Lee | 19 | Daughter | — | Colorado |
| 6 | Francis Lee | 16 | Daughter | — | Colorado |
| 7 | Lovilo H. Pagan | 59 | Head | Farmer | Minnesota |
| 8 | Anna Dell Pagan | 39 | Wife | — | Ohio |
| 9 | Lovilo H. Jr. Pagan | 10 | Son | — | Colorado |
| 10 | Anna K. Pagan | 9 | Daughter | — | Colorado |
| 11 | Eshra E. Pagan | 7 | Daughter | — | Colorado |
| 12 | Carlina Anderson | 62 | Head | Farmer | Sweden |
| 13 | Ivar Gunnerson | 27 | Nephew | Farmer | Sweden |
| 14 | Harry R. Hankins | 51 | Head | Farmer | Iowa |
| 15 | Lula A. Hankins | 50 | Wife | — | Iowa |
| 16 | Cornelius Hedgepath | 35 | Head | Farmer | Colorado |
| 17 | Mollie Hedgepath | 30 | Wife | — | Nebraska |
| 18 | Terrence Hedgepath | 4 | Son | — | Colorado |
| 19 | George Hedgepath | 2 | Son | — | Colorado |
| 20 | John Zamora | 47 | Head | Laborer | Colorado |
| 21 | Raymond Zamora | 14 | Son | — | Colorado |
| 22 | Henry Zamora | 12 | Son | — | Colorado |
| 23 | James Jensen | 62 | Head | Farmer | Denmark |
| 24 | Katherine Jensen | 53 | Wife | — | Kansas |
| 25 | Roy P. Jensen | 31 | Son | — | Colorado |
| 26 | Ethel L. Jensen | 19 | Daughter | — | Colorado |
| 27 | James Jr. Jensen THIS PERSON | 17 | Son | — | Colorado |
| 28 | Robert W. Jensen | 15 | Son | — | Colorado |
| 29 | Ruth E. Jensen | 13 | Daughter | — | Colorado |
| 30 | William F. Jensen | 11 | Son | — | Colorado |
| 31 | John Giebelhouse | 62 | Head | Farmer | Russia |
| 32 | Margaret Giebelhouse | 61 | Wife | — | Russia |
| 33 | Daniel H. Giebelhouse | 26 | Son | Farmer | Colorado |
| 34 | Mollie E. Giebelhouse | 27 | Wife | — | Colorado |
| 35 | Reuben H. Giebelhouse | 6 | Son | — | Colorado |
| 36 | Bertha M. Giebelhouse | 4 | Daughter | — | Colorado |
| 37 | Florence E. Giebelhouse | 1 | Daughter | — | Colorado |
| 38 | George Giebelhouse | 29 | Son | Farmer | Nebraska |
| 39 | Katharine Giebelhouse | 30 | Daughter-in-law | — | Russia |
| 40 | Elnora R. Giebelhouse | 5 | Daughter | — | Colorado |
| 41 | Albert G. Giebelhouse | 3 | Grandson | — | Nebraska |
| 42 | Robert L. Giebelhouse | 1 | Grandson | — | Colorado |
| 43 | Emma Jones | 31 | Daughter | — | Russia |
| 44 | Robert L. Bird | 48 | Head | Farmer | Missouri |
| 45 | Annie A. Bird | 41 | Wife | — | Kansas |
| 46 | Ruby A. Bird | 9 | Daughter | — | California |
| 47 | Annie Koenig | 38 | Head | Farmer | Scotland |
| 48 | Leola G. Koenig | 18 | Daughter | — | Colorado |
| 49 | Lyle G. Koenig | 15 | Son | — | Colorado |
| 50 | Stanley G. Koenig | 11 | Son | — | Colorado |
Related Census Records
Pedigree Summary
James + 5 siblings
Gen 1 · 5 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)