MD
Mary Daly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Daly across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 10-person household.
Age 6
b. ~1924
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Daly |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1924 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Geraldine Daly | Daughter | — | 1 | ~1929 |
| Genevieve Daly | Daughter | — | 17 | ~1913 |
| Cecilia Daly | Daughter | — | 11 | ~1919 |
| Mary Daly | Daughter | — | 6 | ~1924 |
| Dolores Daly | Daughter | — | 3 | ~1927 |
| Frances Daly | Daughter | — | 8 | ~1922 |
| Thomas Daly | Head | — | 49 | ~1881 |
| Cecelia Daly | Other | — | 42 | ~1888 |
| Le Daly | Son | — | 19 | ~1911 |
| Wilbert Daly | Son | — | 15 | ~1915 |
Census Appearances
1930
Cook, Illinois
Daughter, age 6
Cook, Illinois · implied b. ~1924 — 10 household members
| Surname | Daly |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Other, age 17
Cook-County, Illinois · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Delay |
| Given Name | Mary |
| Relationship to Head | Step daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 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 Daly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Daly
Daughter · 1930 · age 6 · b. ~1924 · Illinois
★ You are viewing this record
Sibling
Le Daly
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolores Daly
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Daly
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbert Daly
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecilia Daly
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Daly
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Daly
Sibling · 1930 · age 1
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:illinoiscensus00reel445:0900)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John R Nyehl | 39 | Head | Switchboard Tester | Illinois |
| 52 | Stella R Nyehl | 34 | Wife-H | — | Illinois |
| 53 | Marilyn E Nyehl | 6 | Daughter | — | Illinois |
| 54 | Edward R Nyehl | 5 | Son | — | Illinois |
| 55 | George Reilly | 35 | Head | Leverman | Illinois |
| 56 | Anna Reilly | 28 | Wife-H | — | Austria |
| 57 | Thomas J Reilly | 10 | Son | — | Illinois |
| 58 | James Spadazunio | 37 | Head | Cutter | Lithuania |
| 59 | Rose Spadazunio | 24 | Wife-H | — | Wisconsin |
| 60 | Emily Spadazunio | 3 | Daughter | — | Illinois |
| 61 | Carl W Vernon | 27 | Head | Welder | Ohio |
| 62 | Mildred L Vernon | 26 | Wife-H | — | Ohio |
| 63 | Harold W Vernon | 6 | Son | — | Ohio |
| 64 | Raymond E Vernon | 3 | Son | — | Illinois |
| 65 | Dorothy J Vernon | 1 | Daughter | — | Illinois |
| 66 | Theodore J Beatty | 28 | Boarder | Iron Worker | West Virginia |
| 67 | George Benedictus | 32 | Head | Salesman | Holland |
| 68 | Anna Benedictus | 30 | Wife-H | — | Holland |
| 69 | Richard Benedictus | 4 | Son | — | Holland |
| 70 | Mathias J Garding | 37 | Head | Stationary Engineer | Illinois |
| 71 | Catherine Garding | 40 | Wife-H | — | Michigan |
| 72 | Mathias Garding | 13 | Son | — | Illinois |
| 73 | George J Garding | 11 | Son | — | Illinois |
| 74 | Dorothy Garding | 7 | Daughter | — | Illinois |
| 75 | John E Sullivan | 37 | Head | Steam Fitter | Illinois |
| 76 | Sadie V Sullivan | 37 | Wife-H | — | Illinois |
| 77 | Franklin P Sullivan | 14 | Son | — | Illinois |
| 78 | Eleanor E Sullivan | 13 | Daughter | — | Illinois |
| 79 | Florence E Sullivan | 11 | Daughter | — | Illinois |
| 80 | John E Sullivan | 8 | Son | — | Illinois |
| 81 | Theresa R Sullivan | 3 | Daughter | — | Illinois |
| 82 | Thomas J Daly | 49 | Head | Carpenter | Illinois |
| 83 | Cecelia Daly | 42 | Wife-H | — | Illinois |
| 84 | Le Roy Daly | 19 | Son | Machinist | Illinois |
| 85 | Genevieve C Daly | 17 | Daughter | — | Illinois |
| 86 | Wilbert Daly | 15 | Son | — | Illinois |
| 87 | Cecilia Daly | 11 | Daughter | — | Illinois |
| 88 | Frances W Daly | 8 | Daughter | — | Illinois |
| 89 | Mary E Daly THIS PERSON | 6 | Daughter | — | Illinois |
| 90 | Dolores C Daly | 3 | Daughter | — | Illinois |
| 91 | Geraldine Daly | 1 | Daughter | — | Illinois |
| 92 | James P Flanigan | 41 | Head | Tunnel Worker | Illinois |
| 93 | Mary Flanigan | 38 | Wife-H | — | Illinois |
| 94 | Joseph Flanigan | 18 | Son | Office Boy | Illinois |
| 95 | James Flanigan | 17 | Son | Office Boy | Illinois |
| 96 | Dorothy Flanigan | 15 | Daughter | — | Illinois |
| 97 | Catherine Flanigan | 14 | Daughter | — | Illinois |
| 98 | Thomas Flanigan | 12 | Son | — | Illinois |
| 99 | Lorraine Flanigan | 7 | Daughter | — | Illinois |
| 100 | Patricia Flanigan | 4 | Daughter | — | 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)