JJ
John Jacobson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clearfield-County, Pennsylvania
Our Model Tree links this John Jacobson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Clearfield-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Augusta — first a head (b.~1871), then head of a 6-person household.
Age 69
b. ~1871
Male
Head
Born: Sweden
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Clearfield-County, Pennsylvania |
| Surname | Jacobson |
| Given Name | John B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | DuBois |
| 1935 Residence (County) | Clearfield |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Loco Carpenter |
| Industry | Loco Shops |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Loco Carpenter |
| Township / Ward | Dubois |
| Est. Birth Year | ~1871 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Lynch | Other | — | 21 | ~1919 |
| Agnes Lynch | Daughter | — | 43 | ~1897 |
| John Jacobson | Head | — | 69 | ~1871 |
| John Jacobson | Son | — | 24 | ~1916 |
| April Lynch | Other | — | ~1940 | |
| Agnes Lynch | Other | — | 19 | ~1921 |
Census Appearances
1900
Clearfield, Pennsylvania
Son, age 23
Clearfield, Pennsylvania · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Sweden |
| Birth Month | May |
| Birth Year | 1877 |
| Year of Immigration | 1893 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Miner, Coal |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1910
Clearfield, Pennsylvania
Other, age 38
Clearfield, Pennsylvania · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobson |
| Given Name | John |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1892 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Miner |
| Industry | Coal Mines |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1920
Clearfield, Pennsylvania
Other, age 47
Clearfield, Pennsylvania · implied b. ~1873
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Jacobson |
| Given Name | John |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | sweden |
1930
Clearfield, Pennsylvania
Head, age 59
Clearfield, Pennsylvania · implied b. ~1871 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobson |
| Given Name | John B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1881 |
| Age at First Marriage | 24 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Carpenter |
| Industry | railroad shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 35.00 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Clearfield-County, Pennsylvania
Head, age 69
Clearfield-County, Pennsylvania · implied b. ~1871 — 6 household members
| Surname | Jacobson |
| Given Name | John B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | DuBois |
| 1935 Residence (County) | Clearfield |
| Naturalization Status | Naturalized |
| Occupation | Loco Carpenter |
| Industry | Loco Shops |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Augusta Jacobson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Augusta Jacobson
b. ~1851
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Jacobson
Head · 1940 · age 69 · b. ~1871 · Pennsylvania
★ 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 — Clearfield-County, Pennsylvania
Open full size
1940 US Federal Census — Clearfield-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03470-00592)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Henry Lundgren | 11 | Son | — | Penna. |
| 42 | Gail Joanne Lundgren | 4 | Daughter | — | Penna. |
| 43 | Charles T. Hauser | 33 | Head | Clerk | Penna. |
| 44 | Florence H. Hauser | 23 | Wife | Housewife | Penna. |
| 45 | Raymond C. Hauser | 5 | Son | — | Penna. |
| 46 | Janice Lee Hauser | 3 | Daughter | — | Penna. |
| 47 | Carl O. Lindquist | 48 | Head | Machinist | Sweden |
| 48 | Esther Lindquist | 42 | Wife | Housewife | Penna. |
| 49 | Donaldson Lindquist | 14 | Daughter | — | Penna. |
| 50 | E. E. Lovejoy | 58 | Head | Contractor | Ohio |
| 51 | Pearl M. Lovejoy | 49 | Wife | Housewife | Kansas |
| 52 | Ellen Mae Lovejoy | 22 | Daughter | Bookkeeper | Penna. |
| 53 | John B. Jacobson THIS PERSON | 69 | Head | Loco Carpenter | Sweden |
| 54 | John B. Jr. Jacobson | 24 | Son | Warehouser | Penna. |
| 55 | Agnes J. Lynch | 43 | Daughter | Secretary | Penna. |
| 56 | Agnes J. Lynch | 19 | Grand-dau. | Waitress | Penna. |
| 57 | John J. Lynch | 21 | Grandson | — | Penna. |
| 58 | April Lynch | 0 | Grand-dau. | — | Penna. |
| 59 | Ernest E. Rahlhoff | 56 | Head | Carman Helper | Penna. |
| 60 | Russell E. Showers | 36 | Son-in-law | Deliveryman | Penna. |
| 61 | Betty Showers | 30 | Daughter | — | Penna. |
| 62 | Robert Glen Halt | 27 | Head | Truck Driver | Penna. |
| 63 | Betty Halt | 21 | Wife | — | Penna. |
| 64 | Robert Glen Jr. Halt | 3 | Son | — | Penna. |
| 65 | James Damus | 44 | Head | Merchant | Illinois |
| 66 | Sally Damus | 38 | Wife | — | Illinois |
| 67 | James Jr. Damus | 4 | Adopted Son | — | Ohio |
| 68 | Blank Space Damus | None | — | — | — |
| 69 | Russell H. Anderson | 37 | Head | Parts Salesman | Penna. |
| 70 | Jennie J. Anderson | 37 | Wife | Tel. Operator | Penna. |
| 71 | Cecil Smith | 37 | Head | Gas Station Attendant | Penna. |
| 72 | Evelyn Smith | 32 | Wife | — | Penna. |
| 73 | Carolyn Smith | 7 | Daughter | — | Penna. |
| 74 | Richard Smith | 5 | Son | — | Penna. |
| 75 | Helma Johnson | 48 | Head | Teacher | Sweden |
| 76 | Donald Manning | 28 | Head | Retail Sales | Penna. |
| 77 | Irene Manning | 25 | Wife | — | Penna. |
| 78 | Barbara Jean Manning | 2 | Daughter | — | Penna. |
| 79 | Esther Segerberg | 49 | Head | Saleslady | Penna. |
| 80 | Karl W. Segerberg | 45 | Brother | Merchant | Penna. |
Pedigree Summary
John
Gen 1 · 1 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)