JE
John Erickson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lake-County, Indiana
Our Model Tree links this John Erickson across the 1920, 1930 and 1940 US Censuses in Lake-County, Indiana (XGBoost, ~Confirmed), with identified parents Matt & Hulda — first a head (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Male
Head
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Indiana |
| Surname | Erickson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | East Chicago |
| 1935 Residence (County) | Lake |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Crane Operator |
| Industry | steel mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Crane Operator |
| Township / Ward | East Chicago |
| Est. Birth Year | ~1905 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Erickson | Head | — | 35 | ~1905 |
| Edward Erickson | Son | — | 9 | ~1931 |
| Vera Erickson | Spouse | — | 32 | ~1908 |
Census Appearances
1920
Vermillion, Indiana
Son, age 15
Vermillion, Indiana · implied b. ~1905 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erikson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Finland |
| Year of Immigration | 1905 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
Lake, Indiana
Son, age 26
Lake, Indiana · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Millwright |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Veteran | no |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Lake-County, Indiana
Head, age 35
Lake-County, Indiana · implied b. ~1905 — 3 household members
| Surname | Erickson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | East Chicago |
| 1935 Residence (County) | Lake |
| Naturalization Status | Alien |
| Occupation | Crane Operator |
| Industry | steel mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| 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 Erickson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Matt Erikson (~0.92 confidence) and mother Hulda Erickson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Matt Erikson
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Hulda Erickson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Erickson
Head · 1940 · age 35 · b. ~1905 · Indiana
★ 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 — Lake-County, Indiana
Open full size
1940 US Federal Census — Lake-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01065-00211)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Veta Palazzlo | 17 | daughter | — | Indiana |
| 2 | Sam Palazzlo | 10 | son | — | Indiana |
| 3 | Nick Nedoff | 41 | Head | Chipper | Bulgaria |
| 4 | Susan Nedoff | 39 | Wife | — | Yugoslavia |
| 5 | John Nedoff | 23 | son | Shoveler | Illinois |
| 6 | Nick Jr. Nedoff | 21 | son | — | Illinois |
| 7 | Peter Nedoff | 18 | son | — | Illinois |
| 8 | Frank Zudack | 42 | Head | Milkman | Italy |
| 9 | Mary Zudack | 36 | Wife | — | Italy |
| 10 | Frank Zudack | 13 | son | — | Indiana |
| 11 | Pauline Zudack | 12 | daughter | — | Indiana |
| 12 | Mary Zudack | 4 | daughter | — | Indiana |
| 13 | Frances Zudack | 2 | daughter | — | Indiana |
| 14 | Anthony Mavor | 36 | Head | Locomotive Engineer | Italy |
| 15 | Peranovich, Jack Mavor | 33 | partner | — | Italy |
| 16 | Joseph Goleh | 28 | partner | Rigger | Yugoslavia |
| 17 | John Isidich | 49 | Head | Chipper | Yugoslavia |
| 18 | Mildred Isidich | 48 | Wife | — | Yugoslavia |
| 19 | Steve Isidich | 27 | son | Tractor Operator | Ohio |
| 20 | Mike Isidich | 24 | son | Shear Operator | Ohio |
| 21 | Mildred Isidich | 22 | daughter | — | Pennsylvania |
| 22 | Mary Isidich | 21 | daughter | — | Pennsylvania |
| 23 | George Isidich | 19 | son | Scaleman | Pennsylvania |
| 24 | Mike Borgvich | 49 | lodger | Chipper | Yugoslavia |
| 25 | Juan De La Rosa | 38 | Head | Machinist | Mexico |
| 26 | Mary Louise De La Rosa | 21 | Wife | — | Illinois |
| 27 | Sylvia De La Rosa | 3 | daughter | — | Indiana |
| 28 | Louise De La Rosa | 2 | daughter | — | Indiana |
| 29 | Mary Jadron | 52 | Head | — | Czechoslovakia |
| 30 | Anthony Jadron | 28 | son | Cold Strip Worker | Illinois |
| 31 | Irene Jadron | 22 | daughter | Tin Flopper | Illinois |
| 32 | Betty Jadron | 18 | daughter | Seamless Operator | Indiana |
| 33 | John Erickson THIS PERSON | 35 | Head | Crane Operator | Finland |
| 34 | Vera Erickson | 32 | Wife | — | Illinois |
| 35 | Edward Erickson | 9 | son | — | Illinois |
| 36 | Victor Rogers | 29 | Head | Real Estate Insurance Agent | Illinois |
| 37 | Yvonne Rogers | 27 | Wife | — | Indiana |
| 38 | Molly Rogers | 3 | daughter | — | Indiana |
| 39 | Anna Rogers | 65 | Head | — | Lithuania |
| 40 | Stella Rogers | 37 | daughter | — | Illinois |
Pedigree Summary
John
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)