MS
Mary Shea — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Shea across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 6-person household.
Age 43
b. ~1897
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Shea |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1897 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Shea | Daughter | — | 13 | ~1927 |
| Michael Shea | Head | — | 48 | ~1892 |
| John Hickey | Other | — | 63 | ~1877 |
| John Shea | Son | — | 16 | ~1924 |
| Robert Shea | Son | — | 17 | ~1923 |
| Mary Shea | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Cook, Illinois
Spouse, age 21
Cook, Illinois · implied b. ~1899 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaw |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Spouse, age 32
Cook, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaw |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 43
Cook-County, Illinois · implied b. ~1897 — 6 household members
| Surname | Shea |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| Highest Grade | No 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 Shea across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Shea
Spouse · 1940 · age 43 · b. ~1897 · 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 — 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-t0627-00980-00350)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rose Heil | 27 | Daughter | — | Italy |
| 42 | Vito Perillo | 58 | Head | Tailor | Italy |
| 43 | Anna Perillo | 56 | Wife | — | Italy |
| 44 | Paul Perillo | 27 | Son | Ink Mixer | Illinois |
| 45 | Ida Perillo | 21 | Daughter | Seamstress | Illinois |
| 46 | Mildred Perillo | 18 | Daughter | — | Illinois |
| 47 | Frank Finardi | 38 | Head | Beautician | Italy |
| 48 | Yolanda Finardi | 34 | Wife | — | Italy |
| 49 | Felix Finardi | 14 | Son | — | Illinois |
| 50 | Michael Finardi | 9 | Son | — | Illinois |
| 51 | Betty Finardi | 6 | Daughter | — | Illinois |
| 52 | Elisa Lofreso | 54 | Mother-in-law | — | Italy |
| 53 | Felix Menna | 51 | Uncle | Tailor | Italy |
| 54 | Mary Menna | 54 | Aunt | Tailor | Italy |
| 55 | Frances Chuntal | 59 | Head | — | Illinois |
| 56 | Catherine Chuntal | 24 | Daughter | Clerical-Clerk | Illinois |
| 57 | Anna Johann | 63 | Sister | — | Illinois |
| 58 | Peter Arla | 45 | Son-in-law | Chair Maker | Jugoslavia |
| 59 | Elizabeth Arla | 31 | Daughter | — | Illinois |
| 60 | Marylou Arla | 7 | Grand-daughter | — | Illinois |
| 61 | Peter Jr. Arla | 6 | Grand-son | — | Illinois |
| 62 | Miles Coleman | 47 | Head | Conductor | Illinois |
| 63 | Rose Coleman | 46 | Wife | — | Illinois |
| 64 | Joseph Coleman | 23 | Son | Inspector | Illinois |
| 65 | Veronica Coleman | 21 | Daughter | Clerk | Illinois |
| 66 | Miles Jr. Coleman | 14 | Son | — | Illinois |
| 67 | Rosemary Coleman | 12 | Daughter | — | Illinois |
| 68 | Patricia Coleman | 10 | Daughter | — | Illinois |
| 69 | Catherine Coleman | 8 | Daughter | — | Illinois |
| 70 | Thomas Coleman | 4 | Son | — | Illinois |
| 71 | Joan Coleman | 6 | Daughter | — | Illinois |
| 72 | Michael Shea | 48 | Head | — | Irish Free State |
| 73 | Mary Shea THIS PERSON | 43 | Wife | — | Illinois |
| 74 | Robert Shea | 17 | Son | — | Illinois |
| 75 | John Shea | 16 | Son | — | Illinois |
| 76 | Evelyn Shea | 13 | Daughter | — | Illinois |
| 77 | John Hickey | 63 | Father-in-law | — | Irish Free State |
| 78 | Joseph Hlinger | 48 | Head | Machinist | Illinois |
| 79 | Mary Hlinger | 45 | Wife | — | Illinois |
| 80 | Eileen Hlinger | 22 | Daughter | Cashier | Illinois |
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)