AJ
August Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Porter-County, Indiana
Our Model Tree links this August Johnson across the 1930 and 1940 US Censuses in Porter-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 7-person household.
Age 51
b. ~1889
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Porter-County, Indiana |
| Surname | Johnson |
| Given Name | August |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Center Township |
| Additional Details | |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Farmer |
| Township / Ward | Center Township |
| Est. Birth Year | ~1889 |
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 August | Age | Birth yr |
|---|---|---|---|---|
| Mary Johnson | Daughter | — | 23 | ~1917 |
| Dorothy Johnson | Daughter | — | 12 | ~1928 |
| Martha Johnson | Daughter | — | 16 | ~1924 |
| August Johnson | Head | — | 51 | ~1889 |
| Charles Johnson | Son | — | 22 | ~1918 |
| Raymond Johnson | Son | — | 18 | ~1922 |
| Clara Johnson | Spouse | — | 55 | ~1885 |
Census Appearances
1930
Porter, Indiana
Head, age 43
Porter, Indiana · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | August |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 28 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Value / Rent | R |
| Veteran | O |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Porter-County, Indiana
Head, age 51
Porter-County, Indiana · implied b. ~1889 — 7 household members
| Surname | Johnson |
| Given Name | August |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Center Township |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 August Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
August Johnson
Head · 1940 · age 51 · b. ~1889 · Indiana
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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 — Porter-County, Indiana
Open full size
1940 US Federal Census — Porter-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01086-00341)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sherly Foley | 4 | Daughter | — | Illinois |
| 2 | Sheryl Foley | 2 | Daughter | — | Illinois |
| 3 | Lewis Mahler | 56 | Head | Shop Master | Pennsylvania |
| 4 | Irene Mahler | 53 | Wife | Cashier | Wisconsin |
| 5 | Dale Mahler | 19 | Son | — | Wisconsin |
| 6 | Jeanine Mahler | 15 | Daughter | — | Indiana |
| 7 | Byrdene Gallachy | 16 | Boarder | — | Pennsylvania |
| 8 | Charles Detert | 65 | Head | Maintenance | Sweden |
| 9 | Nana Detert | 63 | Wife | — | Sweden |
| 10 | Adolph Detert | 36 | Son | Crane Man | Illinois |
| 11 | Arthur Detert | 30 | Daughter | Cashier | Illinois |
| 12 | Marion Brownlow | 37 | Head | Caretaker | Indiana |
| 13 | Grace Brownlow | 41 | Wife | — | Indiana |
| 14 | John Hecht | 57 | Head | Carpenter | Indiana |
| 15 | Ellen Hecht | 52 | Wife | — | Indiana |
| 16 | Alice Hecht | 21 | Daughter | Operator | Indiana |
| 17 | John Jr. Hecht | 20 | Son | — | Indiana |
| 18 | Beatrice Sherman | 72 | Mother-in-law | — | Indiana |
| 19 | Emmett Trapp | 34 | Head | Truck Driver | Indiana |
| 20 | Gertrude Trapp | 31 | Wife | — | Indiana |
| 21 | Lorelle Jean Trapp | 12 | Daughter | — | Indiana |
| 22 | Richard Trapp | 10 | Son | — | Indiana |
| 23 | Doris Mae Trapp | 3 | Daughter | — | Indiana |
| 24 | Adrian Russell | 27 | Head | Inspector | Indiana |
| 25 | Anna Russell | 24 | Wife | — | Illinois |
| 26 | Edwin Jr Russell | 4 | Son | — | Indiana |
| 27 | William Russell | 1 | Son | — | Indiana |
| 28 | August Johnson THIS PERSON | 51 | Head | Farmer | Indiana |
| 29 | Clara Johnson | 55 | Wife | — | Indiana |
| 30 | Mary Johnson | 23 | Daughter | — | Indiana |
| 31 | Charles Johnson | 22 | Son | Farm Worker | Indiana |
| 32 | Raymond Johnson | 18 | Son | — | Indiana |
| 33 | Martha Johnson | 16 | Daughter | — | Indiana |
| 34 | Dorothy Johnson | 12 | Daughter | — | Indiana |
| 35 | Glenn Heine | 50 | Head | Laborer | Indiana |
| 36 | Bonnie Heine | 44 | Wife | — | Indiana |
| 37 | David Heine | 13 | Son | — | Indiana |
| 38 | Edwin Heine | 11 | Son | — | Indiana |
| 39 | William Harris | 49 | Head | Real Estate | Illinois |
| 40 | May A Harris | 43 | Wife | — | Illinois |
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)