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Mary Barry — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Barry across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 10-person household.
Age 24
b. ~1916
Female
Daughter
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Barry |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1916 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Barry | Daughter | — | 1 | ~1939 |
| Therese Gleason | Daughter | — | 13 | ~1927 |
| Margaret Gleason | Daughter | — | 20 | ~1920 |
| Mary Barry | Daughter | — | 24 | ~1916 |
| Mae Gleason | Daughter | — | 18 | ~1922 |
| Joseph Gleason | Head | — | 50 | ~1890 |
| Edward Barry | Other | — | 25 | ~1915 |
| John Gleason | Son | — | 11 | ~1929 |
| Joseph Gleason | Son | — | 15 | ~1925 |
| Annie Gleason | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Cook, Illinois
Daughter, age 12
Cook, Illinois · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barry |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 24
Cook-County, Illinois · implied b. ~1916 — 10 household members
| Surname | Barry |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | H 4 |
| 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 Barry across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Barry
Daughter · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Mary Barry
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mae Gleason
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Gleason
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Therese Gleason
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Gleason
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Gleason
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
39 people indexed on this census page (nara:1940:m-t0627-00959-00227)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Genevieve Steinbach | 15 | Daughter | — | Illinois |
| 2 | John J. Steinbach | 53 | Head | Service Man | Illinois |
| 3 | Emily Steinbach | 64 | Sister | — | Illinois |
| 5 | Fredrick Molitor | 27 | Head | Draftsman | Panama |
| 6 | Regina Molitor | 26 | Wife | — | Illinois |
| 7 | Mary Jean Molitor | 3 | Daughter | — | Illinois |
| 8 | Sam Guthrie | 55 | Head | Salesman | Wisconsin |
| 9 | Mary Guthrie | 55 | Wife | — | Wisconsin |
| 10 | Okla Guthrie | 18 | Daughter | — | Illinois |
| 11 | Beatrice Guthrie | 11 | Daughter | — | Wisconsin |
| 12 | Charles Yorks | 36 | Head | Bartender | Texas |
| 13 | Maxine Yorks | 32 | Wife | — | Indiana |
| 14 | Edwin Yorks | 15 | Son | — | Illinois |
| 15 | Sally Ann Yorks | 16 | Daughter | — | Illinois |
| 16 | Charles Yorks | 7 | Son | — | Illinois |
| 17 | George Iffland | 39 | Head | Machine Shop Foreman | Germany |
| 18 | Margaret Iffland | 33 | Wife | — | Germany |
| 19 | Elizabeth Iffland | 11 | Daughter | — | Illinois |
| 20 | Delores Iffland | 10 | Daughter | — | Illinois |
| 21 | Rosemarie Iffland | 3 | Daughter | — | Illinois |
| 22 | Joseph Gleason | 50 | Head | Foreman | Illinois |
| 23 | Annie Gleason | 47 | Wife | — | Irish Free State |
| 24 | Margaret Gleason | 20 | Daughter | New Worker | Illinois |
| 25 | Mae Rita Gleason | 18 | Daughter | — | Illinois |
| 26 | Joseph Gleason | 15 | Son | — | Illinois |
| 27 | Therese Gleason | 13 | Daughter | — | Illinois |
| 28 | John Gleason | 11 | Son | — | Illinois |
| 29 | Edward Barry | 25 | Son-in-law | Packer | Illinois |
| 30 | Mary Barry THIS PERSON | 24 | Daughter | — | Illinois |
| 31 | Mary Barry | 1 | Daughter | — | Illinois |
| 32 | Guy Bower | 52 | Head | Collector | Michigan |
| 33 | Cora Bower | 50 | Wife | — | Illinois |
| 34 | Herbert Seel | 62 | Head | — | Germany |
| 35 | Martha Seel | 47 | Wife | — | Germany |
| 36 | William Seel | 25 | Son | Auto Mechanic | Illinois |
| 37 | Warner Geelenk | 7 | Lodger | — | Illinois |
| 38 | Gerwein Reinhold | 85 | Lodger | — | Germany |
| 39 | John Jutkins | 64 | Head | Produce Salesman | Illinois |
| 40 | Ella Jutkins | 60 | 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)