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Margaret Flynn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Flynn across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 3-person household.
Age 64
b. ~1876
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Flynn |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago |
| Est. Birth Year | ~1876 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Helen Flynn | Daughter | — | 34 | ~1906 |
| Daniel Flynn | Head | — | 70 | ~1870 |
| Margaret Flynn | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Cook, Illinois
Spouse, age 46
Cook, Illinois · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Spouse, age 54
Cook, Illinois · implied b. ~1876 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Spouse, age 64
Cook-County, Illinois · implied b. ~1876 — 3 household members
| Surname | Flynn |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 Margaret Flynn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Flynn
Spouse · 1940 · age 64 · b. ~1876 · Illinois
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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
38 people indexed on this census page (nara:1940:m-t0627-01017-00308)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jacqueline Viziti | 11 | Daughter | — | Illinois |
| 42 | John Goldrington | 46 | Boarder | Agent | Illinois |
| 43 | William H. Mescher | 46 | Head | Auditor | Illinois |
| 44 | Helen A. Mescher | 41 | Wife | — | Illinois |
| 45 | William Jr. Mescher | 13 | Son | — | Illinois |
| 46 | Martha M. Mescher | 8 | Daughter | — | Illinois |
| 47 | Cassie Broecklein | 60 | Head | — | Illinois |
| 48 | Frieda Broecklein | 30 | Daughter | Stenographer | Illinois |
| 49 | Anna Broecklein | 27 | Daughter | Bookkeeper | Illinois |
| 50 | Adolph F. Johnson | 78 | Head | — | Sweden |
| 51 | Hannah Johnson | 79 | Wife | — | Iowa |
| 52 | Ethel Johnson | 52 | Daughter | — | Iowa |
| 53 | Rose Johnson | 49 | Daughter | File Clerk | Iowa |
| 54 | Agnes Johnson | 43 | Daughter | File Clerk | Iowa |
| 55 | Martha Johnson | 37 | Daughter | File Clerk | Iowa |
| 56 | Brinsley Chapman | 53 | Head | Traffic Agent | Wales |
| 57 | Violet M. Chapman | 50 | Wife | — | England |
| 58 | Pearl Chapman | 24 | Daughter | — | Illinois |
| 59 | Mark Norman | 22 | Lodger | Record Clerk | Illinois |
| 60 | Daniel J. Flynn | 70 | Head | — | Illinois |
| 61 | Margaret Flynn THIS PERSON | 64 | Wife | — | Ireland |
| 62 | Helen Flynn | 34 | Daughter | High School Teacher | Illinois |
| 63 | Nicholas Pedersen | 83 | Head | Watchmaker | Germany |
| 64 | Mary Pedersen | 73 | Wife | — | Illinois |
| 65 | Healy J. Pedersen | 36 | Son | Salesman | Illinois |
| 66 | Hannah A. Nelson | 72 | Head | — | Sweden |
| 67 | Allen Wanstrom | 23 | Lodger | Squash Instructor | Sweden |
| 68 | Gunnar Swanson | 35 | Lodger | Carpenter | Sweden |
| 69 | Hjalmar Ekberg | 40 | Lodger | Laborer | Sweden |
| 70 | Oscar Olson | 63 | Head | Shoe Salesman | Sweden |
| 71 | Annette Olson | 62 | Wife | — | Sweden |
| 72 | David Muir | 23 | Head | Maintenance Man | Illinois |
| 73 | Evelyn Muir | 23 | Wife | — | Illinois |
| 74 | Douglas Muir | 0 | Son | — | Illinois |
| 77 | William A. Ullrich | 55 | Head | Clothing Cutter | Illinois |
| 78 | Adeline Ullrich | 50 | Wife | — | Illinois |
| 79 | Harold Ullrich | 21 | Son | New Worker | Illinois |
| 80 | Carlyle Ullrich | 16 | Son | — | 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)