ME
Mary Erickson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dekalb-County, Illinois
Our Model Tree links this Mary Erickson across the 1920, 1930 and 1940 US Censuses in Dekalb-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Female
Spouse
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dekalb-County, Illinois |
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | De Kalb |
| 1935 Residence (County) | De Kalb |
| Naturalization Status | First papers filed |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | De Kalb |
| Est. Birth Year | ~1880 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Erickson | Spouse | — | 60 | ~1880 |
| Wayne Erickson | Son | — | 34 | ~1906 |
| Andrew Erickson | Head | — | 62 | ~1878 |
Census Appearances
1920
De Kalb, …
Spouse, age 38
De Kalb, Illinois · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1904 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | No |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
Dekalb, Illinois
Other, age 49
Dekalb, Illinois · implied b. ~1881 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 24 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Dekalb-County, Illinois
Spouse, age 60
Dekalb-County, Illinois · implied b. ~1880 — 3 household members
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | De Kalb |
| 1935 Residence (County) | De Kalb |
| Naturalization Status | First papers filed |
| Highest Grade | 8 |
| 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 Mary Erickson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Erickson
Spouse · 1940 · age 60 · b. ~1880 · Illinois
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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 — Dekalb-County, Illinois
Open full size
1940 US Federal Census — Dekalb-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00793-00342)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Austin Larson | 43 | Head | Pressman | Illinois |
| 42 | Jane V Larson | 43 | Wife | — | Illinois |
| 43 | Charlotte Larson | 17 | Daughter | — | Illinois |
| 44 | Robert Larson | 10 | Son | — | Illinois |
| 45 | Richard Larson | 8 | Son | — | Illinois |
| 46 | Ella Marshall | 70 | Mother-in-law | — | Germany |
| 47 | Eino Albert Nieminen | 36 | Head | Clerk | Illinois |
| 48 | Mercedes Nieminen | 26 | Wife | — | Illinois |
| 49 | Gerald Nieminen | 7 | Son | — | Illinois |
| 50 | Christine Nieminen | 4 | Daughter | — | Illinois |
| 51 | John Nieminen | 1 | Son | — | Illinois |
| 52 | John Emil Silverstone | 69 | Head | — | Finland |
| 53 | John Jr. Silverstone | 47 | Son | Furnace Man | Massachusetts |
| 54 | Will Remanoff | 69 | Head | — | Finland |
| 55 | Esther Remanoff | 32 | Daughter | — | Illinois |
| 56 | Leo Remanoff | 28 | Son | Proprietor | Illinois |
| 57 | Sylvester Peura | 58 | Head | Wire Drawer | Finland |
| 58 | Amelia Peura | 51 | Wife | — | Finland |
| 59 | Nicholas Peura | 32 | Son | Trucker | Illinois |
| 60 | Walter Peura | 31 | Son | New Worker | Illinois |
| 61 | Jeffery Peura | 30 | Son | Shipping Man | Illinois |
| 62 | Adelaide Peura | 23 | Daughter | Stenographer | Illinois |
| 63 | Andrew Erickson | 62 | Head | Carpenter | Finland |
| 64 | Mary Erickson THIS PERSON | 60 | Wife | — | Finland |
| 65 | Wayne Erickson | 34 | Son | Musician | Illinois |
| 66 | Matthew Pahti | 73 | Head | — | Finland |
| 67 | Sophia Pahti | 70 | Wife | — | Finland |
| 68 | Jennie Pahti | 33 | Daughter | Clerk | Illinois |
| 69 | Victor Lappala | 42 | Head | Wire Drawer | Finland |
| 70 | Hilda Lappala | 50 | Wife | — | Finland |
| 71 | John Lappala | 16 | Son | — | Finland |
| 72 | John Horton | 39 | Head | Social Science Professor | Ohio |
| 73 | Beulah Horton | 35 | Wife | — | Nebraska |
| 74 | Donna Jean Horton | 6 | Daughter | — | Illinois |
| 75 | Mary Joanne Horton | 4 | Daughter | — | Illinois |
| 76 | Stewart Trinte | 35 | Head | Superintendent | Texas |
| 77 | Helen Trinte | 37 | Wife | — | Minnesota |
| 78 | Stuart J. Trinte | 2 | Son | — | Minnesota |
| 79 | Harold Helmick | 31 | Head | Manager And Salesman | Illinois |
| 80 | Helmick | 31 | 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)