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Mary Healey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Healey across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1874), then head of a 3-person household.
Age 66
b. ~1874
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Healey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1874 |
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 |
|---|---|---|---|---|
| Edward Healey | Head | — | 74 | ~1866 |
| Mary Healey | Spouse | — | 66 | ~1874 |
| Ann Healey | Daughter | — | 27 | ~1913 |
Census Appearances
1920
Cook, Illinois
Spouse, age 49
Cook, Illinois · implied b. ~1871 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Spouse, age 58
Cook, Illinois · implied b. ~1872 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healy |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Industry | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 66
Cook-County, Illinois · implied b. ~1874 — 3 household members
| Surname | Healey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Healey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Healey
Spouse · 1940 · age 66 · b. ~1874 · 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-t0627-00994-00819)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Sorenson | 46 | Lodger | Saleslady | Illinois |
| 2 | James Reilly | 54 | Head | Engineer | Illinois |
| 3 | Elizabeth Reilly | 49 | Wife | Saleslady | Illinois |
| 4 | James Reilly | 20 | Son | Messenger | Illinois |
| 5 | Robert Reilly | 10 | Son | — | Illinois |
| 6 | Edward Healey | 74 | Head | Fire Captain | Eire |
| 7 | Mary Healey THIS PERSON | 66 | Wife | — | Illinois |
| 8 | Ann Healey | 27 | Daughter | Receptionist | Illinois |
| 9 | Martin Daly | 52 | Head | Salesman | Illinois |
| 10 | Lillian Daly | 56 | Wife | — | Illinois |
| 11 | John Daly | 24 | Son | Watchman | Illinois |
| 12 | Francis Daly | 22 | Son | Clerk | Illinois |
| 13 | Virginia Leonard | 50 | Head | Saleslady | Illinois |
| 14 | Richard Leonard | 19 | Son | Gardener | Illinois |
| 15 | Michael Hartnett | 39 | Head | Elevator Operator | Eire |
| 16 | Mary Hartnett | 40 | Wife | — | Eire |
| 17 | Mary Hartnett | 9 | Daughter | — | Illinois |
| 18 | Jerome Hartnett | 6 | Son | — | Illinois |
| 19 | John Hartnett | 3 | Son | — | Illinois |
| 20 | William Sturdy | 38 | Head | Bartender | Illinois |
| 21 | Viola Sturdy | 34 | Wife | Stenographer | Illinois |
| 22 | Ella Dunschely | 45 | Head | — | Illinois |
| 23 | Bernice Dunschely | 29 | Daughter | File Clerk | Illinois |
| 24 | June Dunschely | 23 | Daughter | Beauty Operator | Illinois |
| 25 | Arthur Shea | 52 | Head | Investigator | Illinois |
| 26 | Matilda Shea | 51 | Wife | — | Illinois |
| 27 | Emil Gerdell | 49 | Head | Carpenter | Sweden |
| 28 | Thyra Gerdell | 38 | Wife | — | Sweden |
| 29 | Inga Gerdell | 21 | Daughter | Comptometer Operator | Sweden |
| 30 | George Gerdell | 20 | Son | Tool Maker | Sweden |
| 31 | Harry Gerdell | 18 | Son | — | Sweden |
| 32 | Evelyn Gerdell | 12 | Daughter | — | Illinois |
| 33 | Genevieve Spindler | 41 | Head | Cashier And Bookkeeper | Illinois |
| 34 | Clarence Spindler | 39 | Brother | Watchman | Illinois |
| 35 | John Johnstone | 74 | Head | Bookkeeper | Scotland |
| 36 | Mary Johnstone | 65 | Wife | — | Indiana |
| 37 | Thomas Blair | 52 | Lodger | Retail Clerk | Scotland |
| 38 | Elmer Gunderson | 52 | Head | Cashier | Wisconsin |
| 39 | Camilla Gunderson | 51 | Wife | — | Wisconsin |
| 40 | Daughter Hope | None | F | Cordage Supplies | — |
Related Census Records
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)