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Margaret Fitzgerald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Fitzgerald across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 2-person household.
Age 76
b. ~1864
Female
Head
Born: England
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Fitzgerald |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Widowed |
| Birthplace | England |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | No |
| Highest Grade | H 2 |
| 1935 Residence | Same Place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Chicago |
| Est. Birth Year | ~1864 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Fitzgerald | Daughter | — | 43 | ~1897 |
| Margaret Fitzgerald | Head | — | 76 | ~1864 |
Census Appearances
1920
Cook, Illinois
Spouse, age 56
Cook, Illinois · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1884 |
| 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 | England |
| Birthplace (normalized) | england |
1930
Cook, Illinois
Other, age 66
Cook, Illinois · implied b. ~1864 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | Margaret |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1865 |
| Age at First Marriage | 30 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Cook-County, Illinois
Head, age 76
Cook-County, Illinois · implied b. ~1864 — 2 household members
| Surname | Fitzgerald |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Widowed |
| Birthplace | England |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Industry | No |
| Highest Grade | H 2 |
| 1935 Residence | Same Place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Fitzgerald 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 Fitzgerald
Head · 1940 · age 76 · b. ~1864 · 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
40 people indexed on this census page (nara:1940:m-t0627-01017-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jane Lewis Benedict | 26 | Head | Secretary | Illinois |
| 42 | Archie Spencer | 61 | Head | Owner | Missouri |
| 43 | Mary Spencer | 60 | Wife | — | Ireland |
| 44 | Genevieve Spencer | 40 | Daughter | — | Illinois |
| 45 | George W. Brunt | 69 | Head | President | Pennsylvania |
| 46 | Anna C. Brunt | 67 | Wife | — | Iowa |
| 47 | Maurice Mazel | 45 | Head | Physician | Illinois |
| 48 | Zelda Rose Mazel | 8 | Daughter | — | Illinois |
| 49 | Maurice Jr. Mazel | 6 | Son | — | Illinois |
| 50 | Franklin W. Lane | 47 | Head | Manager | Illinois |
| 51 | Josephine C. Lane | 41 | Wife | — | Illinois |
| 52 | Frederick W. Nowak | 58 | Head | Manager | England |
| 53 | Lila Nowak | 60 | Wife | — | Canada |
| 54 | Nora Douglas | 47 | Sister-in-law | — | Illinois |
| 55 | Ann Huffman | 51 | Head | — | Illinois |
| 56 | Nathaniel S. Berger | 45 | Head | Manager | Nebraska |
| 57 | Janette Berger | 50 | Wife | — | Iowa |
| 58 | Donald Morrison | 31 | Head | Broker | Illinois |
| 59 | Elizabeth Morrison | 28 | Wife | — | Illinois |
| 60 | Extra Girl Morrison | None | — | — | — |
| 61 | Susan Barber | 65 | Head | — | Canada |
| 62 | Donald Meyer | 37 | Head | Sales Manager | Oklahoma |
| 63 | Eleanor Meyer | 37 | Wife | Stenographer | California |
| 64 | Celia Klein | 60 | Head | Director | Italy |
| 65 | Harold Lilyman | 37 | Head | Dentist | Ohio |
| 66 | Marie R. Lilyman | 36 | Wife | Part Owner | Illinois |
| 67 | Roy O. Cligbe | 58 | Head | Salesman | Ohio |
| 68 | Delia V. Cligbe | 54 | Wife | — | Nebraska |
| 69 | Arthur Anderson | 61 | Head | Salesman | Illinois |
| 70 | Alison Ellis | 66 | Head | — | New York |
| 71 | Anna L. Ellis | 66 | Wife | — | Ohio |
| 72 | Edward M. Stevens | 52 | Head | Salesman | Illinois |
| 73 | Anna W. Stevens | 78 | Mother | — | Indiana |
| 74 | Margaret Fitzgerald THIS PERSON | 76 | Head | — | England |
| 75 | Margaret Fitzgerald | 43 | Daughter | Principal | Illinois |
| 76 | Louis Hebert | 52 | Head | Proprietor | Louisiana |
| 77 | Alice F. Hebert | 52 | Wife | — | New York |
| 78 | Louis Jr. Hebert | 26 | Son | Part Owner | Illinois |
| 79 | Florence A. Hebert | 16 | Daughter | — | Illinois |
| 80 | Cora E. Brown | 60 | Head | — | Illinois |
Related Census Records
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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)