MC
Mary Casey — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Casey across the 1910, 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 2-person household.
Age 55
b. ~1865
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Casey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Eng |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago |
| Est. Birth Year | ~1865 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Casey | Head | — | 55 | ~1865 |
| Patrick Casey | Son | — | 29 | ~1891 |
Census Appearances
1910
Cook, Illinois
Other, age 45
Cook, Illinois · implied b. ~1865 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Casey |
| Given Name | Mary |
| Relationship to Head | Boarder |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 20 |
| Children Born | 1 |
| Children Living | 1 |
| Year of Immigration | 1870 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Cook, Illinois
Head, age 55
Cook, Illinois · implied b. ~1865 — 2 household members
| Surname | Casey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Eng |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Other, age 68
Cook, Illinois · implied b. ~1862 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Casey |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1884 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
Head, age 76
Cook-County, Illinois · implied b. ~1864 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Casey |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Illinois |
| 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 Casey across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Casey
Head · 1920 · age 55 · b. ~1865 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu347unit:0590)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leo May | 12 | Son | — | Illinois |
| 2 | Beane May | 10 | Daughter | — | Illinois |
| 3 | Edna May | 9 | Daughter | — | Illinois |
| 4 | Norma May | 7 | Daughter | — | Illinois |
| 5 | Ole May | 6 | Son | — | Illinois |
| 6 | George May | 4 | Son | — | Illinois |
| 7 | Florence May | 2 | Daughter | — | Illinois |
| 8 | Chas M. Nye | 52 | Head | Chauffeur | Iowa |
| 9 | Henrietta Nye | 44 | Wife | None | Canada |
| 10 | Agnes Heffernan | 17 | Daughter | None | Illinois |
| 11 | Henrietta Heffernan | 16 | Daughter | None | Illinois |
| 12 | Robert Nye | 13 | Son | — | Illinois |
| 13 | George Nye | 7 | Son | — | Illinois |
| 14 | Eleanor Nye | 6 | Daughter | — | Illinois |
| 15 | Arthur Chittick | 35 | Head | Feed Master | New York |
| 16 | Hugh Chittick | 38 | Brother | None | New York |
| 17 | Henry Wharton | 27 | Head | None | Ohio |
| 18 | Aurilla Wharton | 60 | Wife | None | Indiana |
| 19 | John Byrne | 56 | Head | Watchman | Ireland |
| 20 | Mary Ann Byrne | 47 | Wife | None | Pennsylvania |
| 21 | Mary Byrne | 20 | Daughter | Operator | Illinois |
| 22 | Barney J. Byrne | 18 | Son | Driver | Illinois |
| 23 | Catherine Byrne | 11 | Daughter | None | Illinois |
| 24 | Mary Byrne | 63 | Head | None | Ireland |
| 25 | John Byrne | 25 | Son | Clerk | Pennsylvania |
| 26 | Michael Hanlon | 28 | Head | Laborer | Ireland |
| 27 | Nora Hanlon | 28 | Wife | None | Ireland |
| 28 | Margaret Hanlon | 2 | Daughter | — | Illinois |
| 29 | Louise Flannagan | 50 | Head | None | New York |
| 30 | Frederick Delany | 25 | Nephew | Laborer | New York |
| 31 | Florence Delany | 27 | Niece | Stenographer | New York |
| 32 | Catherine Burkey | 39 | Head | Sausage Maker | Ireland |
| 33 | Louisa Burkey | 19 | Daughter | Sausage Maker | Illinois |
| 34 | Howard Burkey | 18 | Son | Yard Clerk | Illinois |
| 35 | Oliver Burkey | 16 | Son | Messenger | Illinois |
| 36 | Adeline Burkey | 13 | Daughter | None | Illinois |
| 37 | Robert Burkey | 11 | Son | None | Illinois |
| 38 | Margaret Burkey | 8 | Daughter | None | Illinois |
| 39 | Nicholas Schual | 66 | Head | Carpenter | Switzerland |
| 40 | Augusta Schual | 58 | Wife | None | Germany |
| 41 | Owen Knight | 66 | Lodger | Labourer | Ireland |
| 42 | Thomas Kibilla | 58 | Lodger | Labourer | Ireland |
| 43 | Stanley Chisbrough | 50 | Lodger | Watchman | Missouri |
| 44 | George Bainbridge | 23 | Head | Teamster | Illinois |
| 45 | Agnes Bainbridge | 23 | Wife | None | Illinois |
| 46 | John Walsh | 55 | Father | Yard Master | Ireland |
| 47 | Margaret Walsh | 21 | Sister | Typist | Illinois |
| 48 | William Walsh | 10 | Brother | None | Illinois |
| 49 | Mary Casey THIS PERSON | 55 | Head | None | Ireland |
| 50 | Patrick Casey | 29 | Son | Yardmaster | Illinois |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)