MS
Mary Sheehan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Sheehan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Sheehan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago |
| Est. Birth Year | ~1888 |
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 |
|---|---|---|---|---|
| Julia Sheehan | Daughter | — | 17 | ~1923 |
| Mary Sheehan | Daughter | — | 22 | ~1918 |
| Margaret Sheehan | Daughter | — | 20 | ~1920 |
| Michael Sheehan | Head | — | 58 | ~1882 |
| Raymond Sheehan | Son | — | 24 | ~1916 |
| Mary Sheehan | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Cook, Illinois
Other, age 33
Cook, Illinois · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheehan |
| Given Name | Margaret |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1906 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Servant |
| Industry | Private family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Other, age 43
Cook, Illinois · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheehan |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Spouse, age 52
Cook-County, Illinois · implied b. ~1888 — 6 household members
| Surname | Sheehan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Sheehan 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 Sheehan
Spouse · 1940 · age 52 · b. ~1888 · 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-t0627-00982-00775)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph S. Praul | 76 | Head | At Work | Scotland |
| 42 | Hazel A. Praul | 50 | Wife | — | Illinois |
| 43 | Alice R. Hopkins | 26 | Daughter | Stenographer | Illinois |
| 44 | Leslie Cooley | 30 | Head | Pressman | Illinois |
| 45 | Margaret A. Cooley | 29 | Wife | Operator | Illinois |
| 46 | Mary A. Cooley | 2 | Daughter | — | Illinois |
| 47 | Arthur Sheridan | 58 | Head | — | Wisconsin |
| 48 | Annabelle Sheridan | 30 | Daughter | Clerk-Typist | Illinois |
| 49 | Michael Sheehan | 58 | Head | Traffic Man | Ireland |
| 50 | Mary Sheehan THIS PERSON | 52 | Wife | — | Ireland |
| 51 | Raymond Sheehan | 24 | Son | Painter | Illinois |
| 52 | Mary Sheehan | 22 | Daughter | File Clerk | Illinois |
| 53 | Margaret Sheehan | 20 | Daughter | Operator | Illinois |
| 54 | Julia Sheehan | 17 | Daughter | — | Illinois |
| 55 | William Kavanaugh | 47 | Head | Clerk File | Illinois |
| 56 | Mary Kavanaugh | 47 | Wife | — | Illinois |
| 57 | Lorraine Kavanaugh | 24 | Daughter | File Clerk | Illinois |
| 58 | Mary Kavanaugh | 22 | Daughter | — | Illinois |
| 59 | Leo Casey | 36 | Head | Chauffeur | Wisconsin |
| 60 | Anna Casey | 37 | Wife | — | Wisconsin |
| 61 | George Daughman | 36 | Roomer | Chauffeur | Illinois |
| 62 | Alice Potter | 33 | Sister | Manager | Wisconsin |
| 63 | Hubert Von Arx | 51 | Head | Manager | Illinois |
| 64 | Elsie Von Arx | 48 | Wife | — | Illinois |
| 65 | June Von Arx | 20 | Daughter | — | Illinois |
| 66 | Ruth Von Arx | 18 | Daughter | — | Illinois |
| 67 | Frank Von Arx | 16 | Son | — | Illinois |
| 68 | Margaret Donahue | 50 | Head | — | Illinois |
| 69 | Humphrey Mary Donahue | 32 | Daughter | — | Illinois |
| 70 | William Donahue | 31 | Son | Salesman | Illinois |
| 71 | Peggy A. Donahue | 7 | Daughter | — | Illinois |
| 72 | William Donahue | 2 | Son | — | Illinois |
| 73 | James Donahue | 0 | Son | — | Illinois |
| 74 | Jack Donahue | 17 | Brother | — | Illinois |
| 75 | Anne Donahue | 15 | Sister | — | Illinois |
| 76 | Jessie G. Rutledge | 52 | Head | — | Illinois |
| 77 | Sterling Rutledge | 28 | Son | Missionary Work | Wisconsin |
| 78 | Sarah Holdenhour | 79 | Mother | — | Kentucky |
| 79 | Carl E. Damiano | 47 | Head | Carpenter | Italy |
| 80 | Sally B. Damiano | 46 | Wife | — | Tennessee |
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)