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Robert Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this Robert Jensen across the 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 11-person household.
Age 17
b. ~1923
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Jensen |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 3 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Hazel Dell Twp |
| Est. Birth Year | ~1923 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Gilbert Orr | Son | — | 10 | ~1930 |
| David Orr | Son | — | 13 | ~1927 |
| Eva Jensen | Spouse | — | 37 | ~1903 |
| Margery Jensen | Daughter | — | 13 | ~1927 |
| Head Orr Andrew C | Other | — | — | |
| Manley Orr | Son | — | 18 | ~1922 |
| Sara Jensen | Daughter | — | 3 | ~1937 |
| Minnie Orr | Spouse | — | 51 | ~1889 |
| Albert Jensen | Head | — | 43 | ~1897 |
| Robert Jensen | Son | — | 17 | ~1923 |
| Shirley Jensen | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Pottawattamie, Iowa
Son, age 7
Pottawattamie, Iowa · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pottawattamie-County, Iowa
Son, age 17
Pottawattamie-County, Iowa · implied b. ~1923 — 11 household members
| Surname | Jensen |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Pottawattamie |
| Industry | 0 |
| Highest Grade | H 3 |
| 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 Robert Jensen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Jensen
Son · 1940 · age 17 · b. ~1923 · Iowa
★ You are viewing this record
Sibling
Sara Jensen
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Jensen
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Manley Orr
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gilbert Orr
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margery Jensen
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Orr
Sibling · 1940 · age 13
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
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-t0627-01198-00226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edna M. Petersen | 37 | Wife | — | Iowa |
| 42 | Calvin P. Petersen | 14 | Son | — | Iowa |
| 43 | Orvin B. Petersen | 13 | Son | — | Iowa |
| 44 | Opha B. Petersen | 13 | Daughter | — | Iowa |
| 45 | Cleo G. Petersen | 9 | Daughter | — | Iowa |
| 46 | Willie W. D. Christoffersen | 36 | Head | Farmer | Iowa |
| 47 | Lillian M. Christoffersen | 38 | Wife | — | North Dakota |
| 48 | Doris E. Christoffersen | 10 | Daughter | — | Iowa |
| 49 | Glenn R. Christoffersen | 6 | Son | — | Iowa |
| 50 | Paul M. Christoffersen | 3 | Son | — | Iowa |
| 51 | Hans A. Nelson | 49 | Head | Farmer | Iowa |
| 52 | Hilda M. Nelson | 45 | Wife | — | Iowa |
| 53 | Stanley C. Nelson | 19 | Son | Farm Labor | Iowa |
| 54 | Opal L. Nelson | 16 | Daughter | — | Iowa |
| 55 | Hans Petersen | 45 | Head | Farmer | Denmark |
| 56 | Dorthey Petersen | 21 | Daughter | — | Iowa |
| 57 | Ernest W. Hough | 51 | Head | Farmer | Iowa |
| 58 | Bessie M. Hough | 40 | Wife | — | Iowa |
| 59 | Head Hough, Myron E. | None | M | Farm | — |
| 60 | Nornie L. Hough | 23 | Wife | — | Iowa |
| 61 | Morris E. Hough | 1 | Son | — | Iowa |
| 62 | Rozel D. Parish | 56 | Head | Farmer | Iowa |
| 63 | Mary Parish | 51 | Wife | — | Denmark |
| 64 | Ralph B. Parish | 24 | Son | Farmer | Iowa |
| 65 | Harry Jensen | 16 | Hired hand | Farm Labor | Iowa |
| 66 | Pearl Darrington | 38 | Boarder | School Teacher | Iowa |
| 67 | Head Gish, Morris J. | None | M | Farm | — |
| 68 | Raymond J. Wright | 63 | Stepfather | — | Iowa |
| 69 | Esther Wright | 54 | Mother | — | Iowa |
| 70 | Albert Jensen | 43 | Head | Farmer | Iowa |
| 71 | Eva Jensen | 37 | Wife | — | Iowa |
| 72 | Robert L. Jensen THIS PERSON | 17 | Son | — | Iowa |
| 73 | Margery A. Jensen | 13 | Daughter | — | Iowa |
| 74 | Shirley J. Jensen | 6 | Daughter | — | Iowa |
| 75 | Sara L. Jensen | 3 | Daughter | — | Iowa |
| 76 | Head Orr, Andrew C. | None | M | Farm | — |
| 77 | Minnie A. Orr | 51 | Wife | — | Indiana |
| 78 | Manley M. Orr | 18 | Son | Farm Labor | Indiana |
| 79 | David L. Orr | 13 | Son | — | Indiana |
| 80 | Gilbert L. Orr | 10 | Son | — | 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)