JF
John Flanagan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Flanagan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 3-person household.
Age 74
b. ~1866
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Flanagan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago |
| Est. Birth Year | ~1866 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Johanna Flanagan | Spouse | — | 70 | ~1870 |
| Elizabeth Flanagan | Daughter | — | 35 | ~1905 |
| John Flanagan | Head | — | 74 | ~1866 |
Census Appearances
1920
Cook, Illinois
Head, age 57
Cook, Illinois · implied b. ~1863 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flanagan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Foreman |
| Industry | Rail Road Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1895 |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Head, age 67
Cook, Illinois · implied b. ~1863 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flannigan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1881 |
| Age at First Marriage | 40 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 35.00 |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Head, age 74
Cook-County, Illinois · implied b. ~1866 — 3 household members
| Surname | Flanagan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | No 3 |
| 1935 Residence | Same House |
| 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 John Flanagan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Flanagan
Head · 1940 · age 74 · b. ~1866 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00979-00831)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stella Giannuso | 56 | Head | Housewife | Greece |
| 2 | Christine Giannuso | 25 | Daughter | Seamstress | Illinois |
| 3 | Thomas Giannuso | 23 | Son | Clerk | Illinois |
| 4 | Peter Giannuso | 18 | Son | Salesman | Illinois |
| 5 | Sam Kruger | 40 | Son-in-law | Waiter | Greece |
| 6 | Angeline Kruger | 26 | Daughter | Housewife | Illinois |
| 7 | Joan Kruger | 2 | Grandchild | — | Illinois |
| 8 | Nicholas Haugen | 34 | Head | Pharmacist | Illinois |
| 9 | Adeline Haugen | 30 | Wife | Housewife | Illinois |
| 10 | Cora Haugen | 4 | Daughter | — | Illinois |
| 11 | Nicholas Jr Haugen | 3 | Son | — | Illinois |
| 12 | Philip Caputo | 68 | Head | Proprietor | Italy |
| 13 | Mary Caputo | 66 | Wife | Housewife | Italy |
| 14 | Frances Caputo | 33 | Daughter | Saleslady | Italy |
| 15 | Antoinette Caputo | 22 | Daughter | Clerk | Illinois |
| 16 | Dominick Ferrara | 46 | Head | Laborer | Italy |
| 17 | Kate Ferrara | 39 | Wife | Housewife | Italy |
| 18 | Anna Ferrara | 18 | Daughter | — | Illinois |
| 19 | Frankie Ferrara | 17 | Son | New Worker | Illinois |
| 20 | Rudolph Ferrara | 13 | Son | — | Illinois |
| 21 | Mary Ferrara | 10 | Daughter | — | Illinois |
| 22 | Tom Courtney | 66 | Head | Contractor | Illinois |
| 23 | Mae Courtney | 47 | Wife | Housewife | Illinois |
| 24 | Mabel Courtney | 24 | Daughter | Waitress | Illinois |
| 25 | Redmond Lyons | 66 | Head | — | Ireland |
| 26 | Julia Lyons | 67 | Wife | — | Ireland |
| 27 | Redmond Lyons | 28 | Son | Spec Agent | Illinois |
| 28 | Mary Lyons | 24 | Daughter | Typist | Illinois |
| 29 | Audrey Kelly | 51 | Head | — | Kansas |
| 30 | John Flanagan THIS PERSON | 74 | Head | — | Ireland |
| 31 | Johanna Flanagan | 70 | Wife | — | Ireland |
| 32 | Elizabeth Flanagan | 35 | Daughter | Bookkeeper | Illinois |
| 33 | August Radowitz | 59 | Head | Janitor | Russia |
| 34 | Leda Radowitz | 58 | Wife | — | Russia |
| 35 | Helen Radowitz | 21 | Daughter | Clerk | Illinois |
| 36 | Lillie Dillon | 77 | Head | — | Ohio |
| 37 | Daisy L Dillon | 45 | Daughter | Artist | Illinois |
| 38 | Byron Dillon | 42 | Lodger | Dairyman | Illinois |
| 39 | Harry Platt | 54 | Head | Real Estate | Russia |
| 40 | Ruth Platt | 50 | Wife | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)