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John Jacobson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Luce-County, Michigan
Our Model Tree links this John Jacobson across the 1920, 1930 and 1940 US Censuses in Luce-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 7-person household.
Age 57
b. ~1883
Male
Head
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Luce-County, Michigan |
| Surname | Jacobson |
| Given Name | John K. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Newberry |
| 1935 Residence (County) | Luce |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Lumber grocery |
| Class of Worker | OA |
| Hours Worked | 54 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Proprietor |
| Township / Ward | Newberry |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Jacobson | Head | — | 57 | ~1883 |
| Allie Jacobson | Spouse | — | 42 | ~1898 |
| Elma Jacobson | Daughter | — | 29 | ~1911 |
| Viola Jacobson | Daughter | — | 22 | ~1918 |
| Lillian Jacobson | Daughter | — | 25 | ~1915 |
| Raymond Jacobson | Son | — | 11 | ~1929 |
| Francis Jacobson | Son | — | 27 | ~1913 |
Census Appearances
1920
Luce, Michigan
Head, age 33
Luce, Michigan · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1904 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Merchant |
| Industry | Grocery Store |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | R |
| Birth Country | Finland |
| Year of Naturalization | 1910 |
| Birthplace (normalized) | finland |
1930
Luce, Michigan
Head, age 44
Luce, Michigan · implied b. ~1886 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobson |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1899 |
| Age at First Marriage | 21 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Owner |
| Industry | Grocery Store |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | O |
| Home Value / Rent | 7500 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Luce-County, Michigan
Head, age 57
Luce-County, Michigan · implied b. ~1883 — 7 household members
| Surname | Jacobson |
| Given Name | John K. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Newberry |
| 1935 Residence (County) | Luce |
| Naturalization Status | Naturalized |
| Occupation | Proprietor |
| Industry | Lumber grocery |
| Class of Worker | OA |
| Hours Worked | 54 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 John Jacobson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Jacobson
Head · 1940 · age 57 · b. ~1883 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Luce-County, Michigan
Open full size
1940 US Federal Census — Luce-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01781-00043)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Beatrice Krontz | 22 | Daughter | Clerk | Michigan |
| 42 | Clifford Peterson | 30 | Head | Stationary Man | Michigan |
| 43 | Martha Peterson | 32 | Wife | — | Michigan |
| 44 | Darlene Peterson | 5 | Daughter | — | Michigan |
| 45 | Bler Peterson | 2 | Son | — | Michigan |
| 46 | Peter Quintan | 27 | Head | Laborer | Michigan |
| 47 | Bella Quintan | 24 | Wife | — | Wisconsin |
| 48 | Frank Quintan | 3 | Son | — | Michigan |
| 49 | Enis Krang | 27 | Head | Relief Operator | Michigan |
| 50 | Regina Krang | 22 | Wife | — | Michigan |
| 51 | Earnest Hiltunen | 28 | Head | Operator | Michigan |
| 52 | Hilda Hiltunen | 25 | Wife | — | Michigan |
| 53 | Anna M. Hiltunen | 2 | Daughter | — | Michigan |
| 54 | William Hiltunen | 0 | Son | — | Michigan |
| 55 | Hilda Takala | 61 | Head | — | Finland |
| 56 | Fred Takala | 22 | Son | Salesman | Michigan |
| 57 | Leo Takala | 20 | Son | Laborer | Michigan |
| 58 | Martin Salo | 42 | Lodger | Laborer | Finland |
| 59 | Ansel Salo | 42 | Lodger | Laborer | Finland |
| 60 | Alex Polaska | 54 | Lodger | Woodsman | Poland |
| 61 | Peter Rukni | 50 | Lodger | Woodsman | Poland |
| 62 | John K. Jacobson THIS PERSON | 57 | Head | Proprietor | Finland |
| 63 | Allie Jacobson | 42 | Wife | — | Finland |
| 64 | Raymond Jacobson | 11 | Son | — | Michigan |
| 65 | Elma Jacobson | 29 | Daughter | Teacher | Michigan |
| 66 | Francis Jacobson | 27 | Son | Office Clerk | Michigan |
| 67 | Lillian Jacobson | 25 | Daughter | Nurse R.N. | Michigan |
| 68 | Viola Jacobson | 22 | Daughter | Store Clerk | Michigan |
| 69 | Frank Jalonen | 63 | Head | Laborer | Finland |
| 70 | Alli Jalonen | 60 | Wife | Manager | Finland |
| 71 | Mildred Jalonen | 21 | Daughter | Stenographer | Michigan |
| 72 | Lauri Uhlman | 61 | Head | Preacher | Finland |
| 73 | Elvi Uhlman | 62 | Wife | — | Finland |
| 74 | Neil Uhlman | 30 | Son | Attendant | California |
| 75 | Lauri Uhlman | 27 | Son | Attendant | California |
| 76 | David Honkonen | 57 | Head | Laborer | Finland |
| 77 | Mary Honkonen | 53 | Wife | — | Finland |
| 78 | Michael Honkonen | 32 | Son | Grader | Michigan |
| 79 | Charles Honkonen | 28 | Son | — | Michigan |
| 80 | Lillere Honkonen | 23 | Daughter | Saleswoman | Michigan |
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)