MF
Mary Farrell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this Mary Farrell across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1903), then head of a 6-person household.
Age 37
b. ~1903
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Farrell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Bronx |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | New York |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | New York |
| Est. Birth Year | ~1903 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Delores Farrell | Daughter | — | 10 | ~1930 |
| Claire Farrell | Daughter | — | 2 | ~1938 |
| Ellen Farrell | Daughter | — | 7 | ~1933 |
| Matthew Farrell | Head | — | 41 | ~1899 |
| Michael Farrell | Son | — | 5 | ~1935 |
| Mary Farrell | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Kings, New …
Spouse, age 19
Kings, New York · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farrell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Speaks English | Yes |
| Mother Tongue | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Kings, New …
Spouse, age 27
Kings, New York · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farrell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Bronx-County, New …
Spouse, age 37
Bronx-County, New York · implied b. ~1903 — 6 household members
| Surname | Farrell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Bronx |
| Naturalization Status | Naturalized |
| Highest Grade | No 4 |
| 1935 Residence | New York |
| 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 Mary Farrell 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 Farrell
Spouse · 1940 · age 37 · b. ~1903 · New York
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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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02462-00677)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Herman Andretschke | 54 | Head | Stationary Engineer | Germany |
| 42 | Delia Andretschke | 48 | Wife | — | Ireland |
| 43 | Emma Andretschke | 14 | Daughter | Folder | New York |
| 44 | Frank Vastano | 27 | Head | Mechanic | New York |
| 45 | Joan Vastano | 28 | Wife | — | New Jersey |
| 46 | Jan A. Vastano | 5 | Daughter | — | New York |
| 47 | Frank Jr. Vastano | 1 | Son | — | New York |
| 48 | Joseph Oktavec | 50 | Head | Mac. | Czechoslovakia |
| 49 | Antoinette Oktavec | 40 | Wife | — | Czechoslovakia |
| 50 | Anna Oktavec | 21 | Daughter | Book-Keeper | New York |
| 51 | John Oktavec | 12 | Son | — | New York |
| 52 | Joan Oktavec | 12 | Daughter | — | New York |
| 53 | Ben Gravagne | 24 | Head | Electrician | New York |
| 54 | Lena Gravagne | 24 | Wife | — | New York |
| 55 | Gloria Gravagne | 2 | Daughter | — | New York |
| 56 | Rose Marie Gravagne | 1 | Daughter | — | New York |
| 57 | Alice Mchugh | 55 | Head | — | Ireland |
| 58 | Peter F. Mchugh | 29 | Son | Helper | New York |
| 59 | Alice Mchugh | 19 | Daughter | Newsworker | New York |
| 60 | Matthew Farrell | 41 | Head | Chauffeur Mechanic | New York |
| 61 | Mary Farrell THIS PERSON | 37 | Wife | — | Ireland |
| 62 | Delores Farrell | 10 | Daughter | — | New York |
| 63 | Ellen A. Farrell | 7 | Daughter | — | New York |
| 64 | Michael Farrell | 5 | Son | — | New York |
| 65 | Claire Farrell | 2 | Daughter | — | New York |
| 66 | Emma Wagner | 76 | Head | — | Germany |
| 67 | John Wagner | 25 | Son | New Worker | New York |
| 68 | Charles Isaacson | 56 | Head | — | Finland |
| 69 | Ida Isaacson | 53 | Wife | — | Finland |
| 70 | Alvar Isaacson | 25 | Son | Carpenter | New York |
| 71 | Harry Isaacson | 22 | Son | Maker Of Wholesale | New York |
| 72 | Valfrid Isaacson | 19 | Son | Carpenter | Finland |
| 73 | Erik Isaacson | 14 | Son | — | Finland |
| 74 | Stanley Holloway | 24 | Head | Electrical Worker | New York |
| 75 | Edna Holloway | 23 | Wife | — | New York |
| 76 | Leona Holloway | 2 | Daughter | — | New York |
| 77 | Stanley Holloway | 0 | Son | — | New York |
| 78 | Frank Moran | 65 | Head | — | New York |
| 79 | Ellen Moran | 56 | Wife | — | New York |
| 80 | Margaret Moran | 18 | Daughter | New Worker | New York |
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)