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Mary Mackey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Mackey across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 5-person household.
Age 14
b. ~1916
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Mackey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Mackey | Head | — | 47 | ~1883 |
| William Mackey | Son | — | 10 | ~1920 |
| Alma Mackey | Spouse | — | 46 | ~1884 |
| Mary Mackey | Daughter | — | 14 | ~1916 |
| Janet Mackey | Daughter | — | 17 | ~1913 |
Census Appearances
1930
Cook, Illinois
Daughter, age 14
Cook, Illinois · implied b. ~1916 — 5 household members
| Surname | Mackey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| 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 25
Cook-County, Illinois · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Macy |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | Hs 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 Mackey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mackey
Daughter · 1930 · age 14 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
William Mackey
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janet Mackey
Sibling · 1930 · age 17
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel437:0742)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna M O'Connor | 18 | Daughter | — | Illinois |
| 2 | Michael Mcdonough | 59 | Head | — | Ireland |
| 3 | Mary A Mcdonough | 54 | Wife | Housewife | Illinois |
| 4 | Catherine Mcdonough | 25 | Daughter | Typist | Illinois |
| 5 | Richard P Kainka | 41 | Head | Laborer | Lithuania |
| 6 | Kate Kainka | 40 | Wife | Housewife | Lithuania |
| 7 | Richard Kainka | 19 | Son | Laborer | Illinois |
| 8 | Bernice Kainka | 13 | Daughter | — | Pennsylvania |
| 9 | Emily Kainka | 11 | Daughter | — | Pennsylvania |
| 10 | Charles Kainka | 8 | Son | — | Pennsylvania |
| 11 | Charles Kise | 38 | Boarder | Laborer | Lithuania |
| 12 | Edward Mackey | 47 | Head | Laborer | Illinois |
| 13 | Alma Mackey | 46 | Wife | Housewife | Illinois |
| 14 | Janet Mackey | 17 | Daughter | — | Illinois |
| 15 | Mary Mackey THIS PERSON | 14 | Daughter | — | Illinois |
| 16 | William Mackey | 10 | Son | — | Illinois |
| 17 | Thomas Cobb | 36 | Head | Laborer | Ireland |
| 18 | Maude Cobb | 32 | Wife | Housewife | Ireland |
| 19 | William Gluck | 40 | Head | Clerk | Michigan |
| 20 | Anna Gluck | 35 | Wife | Housewife | Michigan |
| 21 | Jens Olsen | 45 | Head | Machinist | Norway |
| 22 | Anna Olsen | 34 | Wife | Housewife | Illinois |
| 23 | William Olsen | 15 | Son | — | Illinois |
| 24 | William Anthony | 46 | Head | Engineer | Illinois |
| 25 | Jennie Anthony | 43 | Wife | Housewife | Illinois |
| 26 | Joseph Anthony | 16 | Son | — | Illinois |
| 27 | Mary Anthony | 14 | Daughter | — | Illinois |
| 28 | William Anthony | 10 | Son | — | Illinois |
| 29 | John Sullivan | 41 | Head | Laborer | Ireland |
| 30 | Sophie Sullivan | 40 | Wife | Housewife | Ireland |
| 31 | Mary Sullivan | 16 | Daughter | — | Illinois |
| 32 | Anna Sullivan | 15 | Daughter | — | Illinois |
| 33 | Catherine Sullivan | 13 | Daughter | — | Illinois |
| 34 | John Jr Sullivan | 10 | Son | — | Illinois |
| 35 | James Sullivan | 8 | Son | — | Illinois |
| 36 | Fred Edgarten | 54 | Head | Clerk | Holland |
| 37 | Anna Edgarten | 44 | Wife | Housewife | Germany |
| 38 | Charles Edgarten | 16 | Son | — | Illinois |
| 39 | Edward Edgarten | 15 | Son | Messenger | Illinois |
| 40 | Adeline Edgarten | 11 | Daughter | — | Illinois |
| 41 | Fred Edgarten | 9 | Son | — | Illinois |
| 42 | John Edgarten | 7 | Son | — | Illinois |
| 43 | Gertrude Edgarten | 5 | Daughter | — | Illinois |
| 44 | Ralph Bentley | 34 | Head | Engineer | Tennessee |
| 45 | Effie Bentley | 36 | Wife | Housewife | Illinois |
| 46 | Edna Bentley | 15 | Daughter | — | Illinois |
| 47 | Mae Bentley | 12 | Daughter | — | Illinois |
| 48 | Richard Bentley | 10 | Son | — | Illinois |
| 49 | John Bentley | 6 | Son | — | Illinois |
| 50 | Ralph Bentley | 3 | Son | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)