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Jens Jensen — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Jens Jensen across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Anton & Chris — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Jensen |
| Given Name | Jens |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Mountain Creek Precinct |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Laborer |
| Industry | Shingle Mill |
| Class of Worker | PW |
| Hours Worked | 23 |
| Income (1939) | 900 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Laborer |
| Township / Ward | Mountain Creek Precinct |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jens | Age | Birth yr |
|---|---|---|---|---|
| Jens Jensen | Head | — | 27 | ~1913 |
| Myrtle Jensen | Spouse | — | 23 | ~1917 |
| Anita Jensen | Daughter | — | 3 | ~1937 |
| Janice Jensen | Daughter | — | 1 | ~1939 |
Census Appearances
1920
King, Washington
Son, age 7
King, Washington · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Jenny |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 17
King, Washington · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Jens C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Teamster |
| Industry | General Work |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Head, age 27
King-County, Washington · implied b. ~1913 — 4 household members
| Surname | Jensen |
| Given Name | Jens |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Mountain Creek Precinct |
| 1935 Residence (County) | King |
| Occupation | Laborer |
| Industry | Shingle Mill |
| Class of Worker | PW |
| Hours Worked | 23 |
| Income (1939) | 900 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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: father Anton Jensen (~0.92 confidence) and father Chris Jensen (~0.92 confidence) and mother Bodel Jensen (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Anton Jensen
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Chris Jensen
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Bodel Jensen
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jens Jensen
Head · 1940 · age 27 · b. ~1913 · Washington
★ 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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04345-00301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hebert Howard Vaughn | 37 | Brother | Watchman | Michigan |
| 42 | Amen Jean Vaughn | 17 | Lodger | — | Washington |
| 43 | Miles Kelly | 36 | Head | Laborer | Washington |
| 44 | William C. Hansen | 78 | Head | Machinist | California |
| 45 | Oscar J. Netock | 37 | Head | Truck Foreman | Washington |
| 46 | Lorena Netock | 36 | Wife | — | Washington |
| 47 | Michael Netock | 11 | Son | — | Washington |
| 48 | William Barnes | 75 | Head | — | Illinois |
| 49 | Lillian Q. Barnes | 75 | Wife | — | Ohio |
| 50 | Jens Jensen THIS PERSON | 27 | Head | Laborer | Washington |
| 51 | Myrtle D. Jensen | 23 | Wife | — | Washington |
| 52 | Anita Jensen | 3 | Daughter | — | Washington |
| 53 | Janice Jensen | 1 | Daughter | — | Washington |
| 54 | Clayton Hall | 21 | Head | Section Laborer | Washington |
| 55 | Carolee Hall | 19 | Wife | — | Washington |
| 56 | Vickey Ann Hall | 0 | Daughter | — | Washington |
| 57 | John D. Leavitt | 26 | Head | Yard Worker | Washington |
| 58 | Thelma Leavitt | 25 | Wife | — | Washington |
| 59 | Kenny Leavitt | 3 | Son | — | Washington |
| 60 | Garth Leavitt | 1 | Son | — | Washington |
| 61 | Martha A. Rhodes | 51 | Head | — | Maryland |
| 62 | Francis Rhodes | 30 | Son | Scaler | Washington |
| 63 | Anthony Rhodes | 21 | Son | Shingle Packer | Washington |
| 64 | Sherman Allen | 43 | Head | Truck Driver | Michigan |
| 65 | Florence M. Allen | 38 | Wife | — | Iowa |
| 66 | Joan D. Allen | 14 | Son | — | Washington |
| 67 | Donna Jean Allen | 12 | Daughter | — | Washington |
| 68 | Sharon Allen | 7 | Daughter | — | Washington |
| 69 | Oscar D. Knutson | 49 | Head | Powder Man | Washington |
| 70 | Myrtle Knutson | 44 | Wife | — | Minnesota |
| 71 | Frederick Knutson | 22 | Head | Laborer | Washington |
| 72 | Dorothy S. Knutson | 19 | Wife | — | Canada |
| 73 | Herbert H. Harrison | 31 | Head | Mill Foreman | Montana |
| 74 | Mary M. Harrison | 26 | Wife | — | Washington |
| 75 | Jean Ann Harrison | 8 | Daughter | — | Washington |
| 76 | William H. Harrison | 4 | Son | — | Washington |
| 77 | Carol Harrison | 2 | Daughter | — | Washington |
| 78 | Howard Hoffman | 34 | Head | Grader | Washington |
| 79 | Laurena Hoffman | 21 | Wife | — | Washington |
| 80 | Joanne Hoffman | 3 | Daughter | — | Washington |
Pedigree Summary
Jens
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)