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James Jensen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mason-County, Michigan
Our Model Tree links this James Jensen across the 1920, 1930 and 1940 US Censuses in Mason-County, Michigan (XGBoost, ~Confirmed), with identified parents James & Ruby — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mason-County, Michigan |
| Surname | Jensen |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Summit Twp |
| 1935 Residence (County) | Mason |
| Additional Details | |
| Occupation | farm laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Farm Laborer |
| Township / Ward | Summit Twp |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Chilton Jensen | Son | — | 23 | ~1917 |
| Rhea Jensen | Daughter | — | 19 | ~1921 |
| James Jensen | Head | — | 47 | ~1893 |
| James Jensen | Son | — | 21 | ~1919 |
Census Appearances
1920
Mason, Michigan
Son, age 1
Mason, Michigan · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Mason, Michigan
Son, age 12
Mason, Michigan · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Mason-County, Michigan
Son, age 21
Mason-County, Michigan · implied b. ~1919 — 4 household members
| Surname | Jensen |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Summit Twp |
| 1935 Residence (County) | Mason |
| Occupation | farm laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 mother Ruby Jensen (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Jensen
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Ruby Jensen
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Jensen
Son · 1940 · age 21 · b. ~1919 · Michigan
★ You are viewing this record
Sibling
Rhea Jensen
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chilton Jensen
Sibling · 1940 · age 23
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 — Mason-County, Michigan
Open full size
1940 US Federal Census — Mason-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01788-00541)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rose Hannah Sheldon | 35 | Wife | H. | New York State |
| 2 | Myrtle Hitch | 55 | Head | Farming | Michigan |
| 3 | Grace Hull | 53 | Sister | H. | Michigan |
| 4 | Robert E. Hull | 15 | Son | S | Michigan |
| 5 | Raymond Miller | 19 | Hired man | Farm Laborer | Michigan |
| 6 | Bert Miller | 38 | Hired man | Farm Laborer | Michigan |
| 7 | A. J. Houk | 67 | Head | Farming | Michigan |
| 8 | Almeda Houk | 66 | Wife | H | Michigan |
| 9 | Arlington Houk | 36 | Head | Farming | Michigan |
| 10 | Reta Houk | 36 | Wife | H | Michigan |
| 11 | Ronald Houk | 6 | Son | — | Michigan |
| 12 | Audrey Jean Houk | 2 | Daughter | — | Michigan |
| 13 | Barbara Jane Houk | 2 | Daughter | — | Michigan |
| 14 | Alex C. Benedict | 65 | Head | Farming | Michigan |
| 15 | Minnie Benedict | 67 | Wife | H | Irish Free State |
| 16 | Minnie Mcclatchie | 73 | Head | Ot. | Michigan |
| 17 | Robert Mcclatchie | 69 | Sister | H | Michigan |
| 18 | Myrtle Mcclatchie | 60 | Sister | H | Michigan |
| 19 | Dan French | 55 | Head | Laborer | Michigan |
| 20 | Martha Jane French | 12 | Son | S | Michigan |
| 21 | Henry C. Cornstubble | 43 | Head | Farming | Holland |
| 22 | Florence Cornstubble | 40 | Wife | H | Michigan |
| 23 | Henry Jr. Cornstubble | 18 | Son | Surveying | Michigan |
| 24 | Thomas Lloyd Cornstubble | 16 | Son | Farm Laborer | Michigan |
| 25 | Laura Louise Cornstubble | 14 | Daughter | S | Michigan |
| 26 | Raymond Cornstubble | 6 | Son | — | Michigan |
| 27 | Dorothy May Cornstubble | 3 | Daughter | — | Michigan |
| 28 | Donald Dale Cornstubble | 1 | Son | — | Michigan |
| 29 | John Haigh | 47 | Head | Farming | Michigan |
| 30 | Lillian Mae Haigh | 48 | Wife | H | Illinois |
| 31 | Russel Haigh | 17 | Son | S | Michigan |
| 32 | Ray Hall | 26 | Head | Farm Laborer | Michigan |
| 33 | Dorothy Hall | 24 | Wife | H | Michigan |
| 34 | Helen Hall | 1 | Daughter | — | Michigan |
| 35 | Emil Van Arkel | 40 | Head | Country Store | Belgium |
| 36 | Pauline Van Arkel | 38 | Wife | Clerk | Michigan |
| 37 | James Ruby Jensen | 47 | Head | Farming | Michigan |
| 38 | Chilton A. Jensen | 23 | Son | Auto Mechanic | Wisconsin |
| 39 | James A. Jensen THIS PERSON | 21 | Son | Farm Laborer | Wisconsin |
| 40 | Rhea Jensen | 19 | Daughter | Teaching | Michigan |
Related Census Records
Pedigree Summary
James + 2 siblings
Gen 1 · 2 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)