JJ
James Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this James Jensen across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.
Age 57
b. ~1883
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Jensen |
| Given Name | James C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Hazel Dell Twp |
| 1935 Residence (County) | Pottawattamie |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Hazel Dell Twp |
| Est. Birth Year | ~1883 |
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 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| June Jensen | Other | — | 26 | ~1914 |
| James Jensen | Head | — | 57 | ~1883 |
| Earl Jensen | Son | — | 28 | ~1912 |
| Hanny Jensen | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Pottawattamie, Iowa
Head, age 37
Pottawattamie, Iowa · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | James C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1897 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | Em |
| 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 | 1901 |
| Birthplace (normalized) | denmark |
1930
Pottawattamie, Iowa
Head, age 47
Pottawattamie, Iowa · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | James C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1884 |
| Age at First Marriage | 24 |
| 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
Pottawattamie-County, Iowa
Head, age 57
Pottawattamie-County, Iowa · implied b. ~1883 — 4 household members
| Surname | Jensen |
| Given Name | James C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Hazel Dell Twp |
| 1935 Residence (County) | Pottawattamie |
| Naturalization Status | Naturalized |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 James Jensen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Jensen
Head · 1940 · age 57 · b. ~1883 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01198-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Velma O. Wilborn | 20 | Daughter | School Teacher | Iowa |
| 42 | Eldred O. Wilborn | 17 | Son | — | Iowa |
| 43 | Dwayne R. Wilborn | 13 | Son | — | Iowa |
| 44 | Lynn H. Handlen | 36 | Head | Farmer | Iowa |
| 45 | Alma A. Handlen | 34 | Wife | — | Iowa |
| 46 | Alice A. Handlen | 4 | Daughter | — | Iowa |
| 47 | Janice L. Handlen | 1 | Daughter | — | Iowa |
| 48 | Ervin E. Larsen | 30 | Head | Farmer | Iowa |
| 49 | Dorthey M. Larsen | 30 | Wife | — | Iowa |
| 50 | Harold L. Hough | 30 | Head | Farmer | Iowa |
| 51 | Ruth M. Hough | 32 | Wife | — | Iowa |
| 52 | Anna L. Hansen | 58 | Mother | — | Iowa |
| 53 | Francis E. Hansen | 13 | Brother | — | Iowa |
| 54 | Ollie Lehman | 24 | Lodger | School Teacher | Iowa |
| 55 | James C. Jensen THIS PERSON | 57 | Head | Farmer | Denmark |
| 56 | Hanny C. Jensen | 53 | Wife | — | Iowa |
| 57 | Earl F. Jensen | 28 | Son | Farmer | Iowa |
| 58 | June Jensen | 26 | Daughter-in-law | — | Iowa |
| 59 | Ernest Price | 38 | Head | Farmer | Nebraska |
| 60 | Selma Price | 32 | Wife | — | Iowa |
| 61 | Robert E. Price | 12 | Son | — | Iowa |
| 62 | Dean A. Price | 9 | Son | — | Iowa |
| 63 | Elmer F. Peters | 39 | Head | Laborer | Iowa |
| 64 | Mildred M. Peters | 34 | Wife | — | Iowa |
| 65 | Florence M. Peters | 16 | Daughter | — | Iowa |
| 66 | Wilma L. Peters | 14 | Daughter | — | Iowa |
| 67 | Lula J. Peters | 12 | Daughter | — | Iowa |
| 68 | Elmer Jr. Peters | 12 | Son | — | Iowa |
| 69 | Kenneth E. Peters | 4 | Son | — | Iowa |
| 70 | Shirley A. Peters | 4 | Daughter | — | Iowa |
| 71 | Duane L. Peters | 2 | Son | — | Iowa |
| 72 | Arthur J. Price | 67 | Head | Farmer | Iowa |
| 73 | Tilly Price | 60 | Wife | — | Iowa |
| 74 | Vaynt H. Bowen | 63 | Head | Farmer | Iowa |
| 75 | Emma N. Bowen | 60 | Wife | — | Iowa |
| 76 | Albert J. Bertelsen | 51 | Head | Farmer | Denmark |
| 77 | Martha A. Bertelsen | 43 | Wife | — | Iowa |
| 78 | Harold J. Larsen | 30 | Head | Farmer | Iowa |
| 79 | Valborg L. Larsen | 26 | Wife | — | Iowa |
| 80 | Virgil D. Bonner | 30 | Head | Farmer | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)