MD
Mary Daley — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Daley across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 7-person household.
Age 56
b. ~1874
Female
Head
Born: Illinois
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Daley |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15000 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1874 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Harry Daley | Son | — | 16 | ~1914 |
| James Daley | Son | — | 18 | ~1912 |
| Margaret Daley | Daughter | — | 7 | ~1923 |
| Joseph Daley | Son | — | 14 | ~1916 |
| Mary Daley | Head | — | 56 | ~1874 |
| Arthur Daley | Son | — | 34 | ~1896 |
| Alice Daley | Daughter | — | 27 | ~1903 |
Census Appearances
1930
Cook, Illinois
Head, age 56
Cook, Illinois · implied b. ~1874 — 7 household members
| Surname | Daley |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15000 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 67
Cook-County, Illinois · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Daly |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Daley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Daley
Head · 1930 · age 56 · b. ~1874 · Illinois
★ You are viewing this record
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:illinoiscensus00reel425:0508)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William E Kandler | 54 | Head | Broker | Illinois |
| 2 | Grace B Kandler | 52 | Wife | — | Illinois |
| 3 | Julia E Kandler | 22 | Daughter | — | Illinois |
| 4 | John E Kandler | 15 | Son | — | Ohio |
| 5 | Edgar C Kandler | 12 | Son | — | Ohio |
| 6 | Florence E Kandler | 12 | Daughter | — | Ohio |
| 7 | Mary A Daley THIS PERSON | 56 | Head | — | Illinois |
| 8 | Arthur J Daley | 34 | Son | Maintenance | Illinois |
| 9 | Alice M Daley | 27 | Daughter | — | Illinois |
| 10 | James Daley | 18 | Son | — | Illinois |
| 11 | Harry Daley | 16 | Son | — | Illinois |
| 12 | Joseph Daley | 14 | Son | — | Illinois |
| 13 | Margaret Daley | 7 | Daughter | — | Illinois |
| 14 | Peter Headman | 71 | Head | — | Illinois |
| 15 | Linda Headman | 66 | Wife | — | Illinois |
| 16 | Carl Olsen | 49 | Head | Foreman | Sweden |
| 17 | Alma S Olsen | 46 | Wife | — | Sweden |
| 18 | Carl Olsen | 16 | Son | — | Illinois |
| 19 | Ruth E Olsen | 15 | Daughter | — | Illinois |
| 20 | Edward W Sexton | 72 | Head | — | Illinois |
| 21 | Mary M Sexton | 63 | Wife | — | Illinois |
| 22 | George W Sexton | 22 | Son | Manager | Illinois |
| 23 | Harry W Sexton | 21 | Son | — | Illinois |
| 24 | Raymond W Krausner | 52 | Head | Inspector | Germany |
| 25 | Angeline Krausner | 50 | Wife | — | Michigan |
| 26 | Elizabeth Krausner | 27 | Daughter | Stenographer | Illinois |
| 27 | Mary Krausner | 24 | Daughter | Teacher | Illinois |
| 28 | Margaret Krausner | 20 | Daughter | Teacher | Illinois |
| 29 | Mary J Carroll | 66 | Head | — | Pennsylvania |
| 30 | Peter J Buck | 33 | Head | — | Illinois |
| 31 | Emma S Buck | 28 | Wife | — | Illinois |
| 32 | Elizabeth Buck | 6 | Daughter | — | Illinois |
| 33 | Mildred Buck | 4 | Daughter | — | Illinois |
| 34 | Dorothy Buck | 2 | Daughter | — | Illinois |
| 35 | Ray Neal | 62 | Head | — | Illinois |
| 36 | Mary Neal | 58 | Wife | — | Illinois |
| 37 | Dorothy Neal | 21 | Daughter | — | Illinois |
| 38 | Ray Neal | 11 | Son | — | Illinois |
| 39 | Oscar Durante | 60 | Head | Proprietor | Italy |
| 40 | Jean Durante | 50 | Wife | — | Scotland |
| 41 | Frank Labashinsky | 50 | Head | Lawyer | Illinois |
| 42 | Marion Labashinsky | 29 | Wife | — | Illinois |
| 43 | Mary Jane Labashinsky | 3 | Daughter | — | Illinois |
| 44 | Jacob Kaufman | 67 | Head | Physician | Germany |
| 45 | Clara Kaufman | 64 | Wife | — | Illinois |
| 46 | Irving S Kaufman | 32 | Son | — | Illinois |
| 47 | James Brennan | 36 | Head | — | Nebraska |
| 48 | Anna Brennan | 34 | Wife | — | Illinois |
| 49 | Barbara Brennan | 7 | Daughter | — | Illinois |
| 50 | Jane Brennan | 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)