MF
Mary Flaherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bureau-County, Illinois
Our Model Tree links this Mary Flaherty across the 1920, 1930 and 1940 US Censuses in Bureau-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 9-person household.
Age 41
b. ~1899
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bureau-County, Illinois |
| Surname | Flaherty |
| Given Name | Mary Ellen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Ladd village |
| 1935 Residence (County) | Bureau |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Ladd Village |
| Est. Birth Year | ~1899 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Flaherty | Son | — | 14 | ~1926 |
| Elmer Flaherty | Head | — | 47 | ~1893 |
| Joseph Flaherty | Son | — | 21 | ~1919 |
| Paul Flaherty | Son | — | 15 | ~1925 |
| Dorothy Flaherty | Daughter | — | 17 | ~1923 |
| Theresa Flaherty | Daughter | — | 11 | ~1929 |
| Mary Flaherty | Spouse | — | 41 | ~1899 |
| Donald Flaherty | Son | — | 8 | ~1932 |
| William Flaherty | Son | — | 20 | ~1920 |
Census Appearances
1920
Bureau, Illinois
Spouse, age 20
Bureau, Illinois · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Bureau, Illinois
Other, age 31
Bureau, Illinois · implied b. ~1899 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 18 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Bureau-County, Illinois
Spouse, age 41
Bureau-County, Illinois · implied b. ~1899 — 9 household members
| Surname | Flaherty |
| Given Name | Mary Ellen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Ladd village |
| 1935 Residence (County) | Bureau |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| 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 Flaherty across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Flaherty
Spouse · 1940 · age 41 · b. ~1899 · 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 — Bureau-County, Illinois
Open full size
1940 US Federal Census — Bureau-County, Illinois
Page Contents
19 people indexed on this census page (nara:1940:m-t0627-00762-00297)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kathryn Nellie | 84 | Head | — | Holland |
| 2 | Joseph Nellie | 50 | Son | Farmer | Illinois |
| 3 | Pasquale Brudi | 62 | Head | Farmer | Italy |
| 4 | Louise Brudi | 60 | Wife | — | Italy |
| 5 | Dominic Brudi | 37 | Son | Machine Operator | Illinois |
| 6 | Peter Bergandi | 67 | Head | Farmer | Italy |
| 7 | Theresa Bergandi | 59 | Wife | — | Italy |
| 8 | Joseph Bergandi | 33 | Son | Iron Worker | Illinois |
| 9 | Peter Jr. Bergandi | 31 | Son | Laborer | Illinois |
| 10 | Charles Bergandi | 25 | Son | Laborer | Illinois |
| 11 | Elmer Flaherty | 47 | Head | Farmer | Illinois |
| 12 | Mary Ellen Flaherty THIS PERSON | 41 | Wife | — | Illinois |
| 13 | Joseph Flaherty | 21 | Son | Manager | Illinois |
| 14 | William Flaherty | 20 | Son | Farm Laborer | Illinois |
| 15 | Dorothy Flaherty | 17 | Daughter | — | Illinois |
| 16 | Paul Flaherty | 15 | Son | — | Illinois |
| 17 | Robert Flaherty | 14 | Son | — | Illinois |
| 18 | Theresa Flaherty | 11 | Daughter | — | Illinois |
| 19 | Donald Flaherty | 8 | 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)