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Mary Flanagan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Flanagan across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 11-person household.
Age 5
b. ~1925
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Flanagan |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1925 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Michael Flanagan | Son | — | 13 | ~1917 |
| Hannah Flanagan | Spouse | — | 43 | ~1887 |
| Catherine Flanagan | Daughter | — | 3 | ~1927 |
| Dennis Flanagan | Son | — | 18 | ~1912 |
| John Flanagan | Son | — | 9 | ~1921 |
| Mary Flanagan | Daughter | — | 5 | ~1925 |
| Josephine Flanagan | Daughter | — | 10 | ~1920 |
| James Flanagan | Son | — | 8 | ~1922 |
| Michael Flanagan | Head | — | 50 | ~1880 |
| David Flanagan | Son | — | 17 | ~1913 |
| Thomas Flanagan | Son | — | 1 | ~1929 |
Census Appearances
1930
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1925 — 11 household members
| Surname | Flanagan |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 15
Cook-County, Illinois · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flanagan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| Highest Grade | Hs 6 |
| 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 Flanagan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Flanagan
Daughter · 1930 · age 5 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Josephine Flanagan
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dennis Flanagan
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Flanagan
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Flanagan
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Flanagan
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Flanagan
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Flanagan
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Flanagan
Sibling · 1930 · age 8
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
18 people indexed on this census page (ia:1930:illinoiscensus00reel449:0299)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edmund J Maccombie | 47 | Head | Granite Cutter | Scotland |
| 2 | Annelia Maccombie | 43 | Wife | — | Germany |
| 3 | Michael Flanagan | 50 | Head | Police Officer | Irish Free State |
| 4 | Hannah Flanagan | 43 | Wife | — | Irish Free State |
| 5 | Dennis Flanagan | 18 | Son | — | Illinois |
| 6 | David Flanagan | 17 | Son | — | Illinois |
| 7 | Michael Flanagan | 13 | Son | — | Illinois |
| 8 | Josephine Flanagan | 10 | Daughter | — | Illinois |
| 9 | John Flanagan | 9 | Son | — | Illinois |
| 10 | James Flanagan | 8 | Son | — | Illinois |
| 11 | Mary A Flanagan THIS PERSON | 5 | Daughter | — | Illinois |
| 12 | Catherine Flanagan | 3 | Daughter | — | Illinois |
| 13 | Thomas Flanagan | 1 | Son | — | Illinois |
| 14 | Emery T Clark | 24 | Head | Contractor | Georgia |
| 15 | Helen E Clark | 20 | Wife | — | Indiana |
| 16 | Helen R Clark | 3 | Daughter | — | Indiana |
| 17 | Emery E Clark | 2 | Son | — | Illinois |
| 18 | Thomas J Clark | 1 | 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)