ME
Mary Erickson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Erickson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 4-person household.
Age 60
b. ~1880
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same home |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Chicago |
| 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.
4 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 |
| Isabelle Erickson | Daughter | — | 34 | ~1906 |
| August Prior | Other | — | 40 | ~1900 |
| Axelrod Erickson | Head | — | 62 | ~1878 |
Census Appearances
1920
Cook, Illinois
Spouse, age 40
Cook, Illinois · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | 1914 |
| Birthplace (normalized) | scotland |
1930
Cook, Illinois
Spouse, age 50
Cook, Illinois · implied b. ~1880 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 24 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Cook-County, Illinois
Spouse, age 60
Cook-County, Illinois · implied b. ~1880 — 4 household members
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same home |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Erickson
Spouse · 1940 · age 60 · b. ~1880 · Illinois
★ 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00992-00430)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joan Gallagher | 12 | Daughter | — | Illinois |
| 2 | Anne Gallagher | 5 | Daughter | — | Illinois |
| 3 | John Gallagher | 3 | Son | — | Illinois |
| 4 | Patricia Gallagher | 1 | Daughter | — | Illinois |
| 5 | Della Reardon | 51 | Sister | Operator | Illinois |
| 6 | Leonard Winkelman | 35 | Head | Clerk | Illinois |
| 7 | Mary Winkelman | 37 | Wife | — | Indiana |
| 8 | Robert Winkelman | 4 | Son | — | Illinois |
| 9 | Bonnie Winkelman | 3 | Daughter | — | Illinois |
| 10 | Dora Lee | 35 | Mother-in-law | Bookkeeper | Indiana |
| 11 | Rudolph L. Guntren | 45 | Head | Property Manager | Illinois |
| 12 | Minnie Guntren | 49 | Wife | — | Illinois |
| 13 | Helen M. Guntren | 21 | Daughter | Clerk | Illinois |
| 14 | Shirley J. Guntren | 18 | Daughter | Page-Girl | Illinois |
| 15 | Pete Olsen | 70 | Uncle | — | Norway |
| 16 | Henry Kraebert | 47 | Head | Yard-Clerk | Illinois |
| 17 | Helena Kraebert | 45 | Wife | — | Illinois |
| 18 | Henry Jr. Kraebert | 24 | Son | Apprentice Pressman | Illinois |
| 19 | Dolores Kraebert | 22 | Daughter | Bill-Assistant | Illinois |
| 20 | Harold Hansen | 33 | Head | Salesman | Massachusetts |
| 21 | Sylvia Hansen | 33 | Wife | — | Illinois |
| 22 | Loretta Hansen | 8 | Daughter | — | Illinois |
| 23 | Warren Hansen | 5 | Son | — | Illinois |
| 24 | Bruce Hansen | 3 | Son | — | Illinois |
| 25 | Sarah Day | 51 | Head | Teacher | Minnesota |
| 26 | George Day | 24 | Son | Assistant Brewer | Illinois |
| 27 | Mary E. Day | 21 | Daughter | Assistant Book-Keeper | Wisconsin |
| 28 | Catherine Day | 15 | Daughter | — | Wisconsin |
| 29 | Margaret Brown | 70 | Mother | — | Irish Free State |
| 30 | Wallace Weirick | 53 | Head | Superintendent | Illinois |
| 31 | Mala Weirick | 53 | Wife | — | Illinois |
| 32 | John Weirick | 23 | Son | Tool-Maker | Illinois |
| 33 | Ella Reischmidt | 57 | Cousin | Housekeeper | Illinois |
| 34 | Fayette H. Maycroft | 50 | Head | Mail-Carrier | Kentucky |
| 35 | Louise Maycroft | 52 | Wife | — | Germany |
| 36 | Virginia Maycroft | 24 | Daughter | Typist | Illinois |
| 37 | Axelrod Erickson | 62 | Head | Machinist | Norway |
| 38 | Mary Erickson THIS PERSON | 60 | Wife | — | Scotland |
| 39 | Isabelle Erickson | 34 | Daughter | General Office | Illinois |
| 40 | August Prior | 40 | Lodger | Clerk | 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)