WF
William Farrell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this William Farrell across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed), with identified parents Alexander & Eliza — first a son (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Farrell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Occupation | Floor Layer |
| Industry | Building Line |
| Class of Worker | PW |
| Income (1939) | 496 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Floor Layer |
| Township / Ward | New York City |
| Est. Birth Year | ~1913 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Farrell | Son | — | 27 | ~1913 |
| Eliza Farrell | Spouse | — | 66 | ~1874 |
| Alexander Farrell | Head | — | 68 | ~1872 |
Census Appearances
1920
Bronx, New …
Son, age 6
Bronx, New York · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farrell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Bronx, New …
Son, age 16
Bronx, New York · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farrell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | Irish Free State |
| Occupation | Student |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Son, age 27
Bronx-County, New York · implied b. ~1913 — 3 household members
| Surname | Farrell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Occupation | Floor Layer |
| Industry | Building Line |
| Class of Worker | PW |
| Income (1939) | 496 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 William Farrell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alexander Farrell (~0.92 confidence) and mother Eliza Farrell (~0.92 confidence) and father William Farrell (~0.92 confidence) and mother Della Farrell (~0.92 confidence) and mother Nellie Farrell (~0.92 confidence) and father William Farrell (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alexander Farrell
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Eliza Farrell
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
William Farrell
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Della Farrell
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Nellie Farrell
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
William Farrell
b. ~1890
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Farrell
Son · 1940 · age 27 · b. ~1913 · New York
★ 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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02486-00240)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Finley | 27 | Head | Bartender | New York |
| 2 | Arthur Finley | 26 | Brother | Bartender | New York |
| 3 | Frank Finley | 21 | Brother | Chauffeur Helper | New York |
| 4 | Vincent Finley | 21 | Brother | — | New York |
| 5 | William Erickson | 38 | Brother-in-law | Train Checker | New York |
| 6 | Marie Erickson | 35 | Sister | Clerk | New York |
| 7 | Alexander R. Farrell | 68 | Head | Engineer | England |
| 8 | Eliza E. Farrell | 66 | Wife | — | England |
| 9 | William Farrell THIS PERSON | 27 | Son | Floor Layer | New York |
| 10 | Harry Mcdermott | 60 | Head | Contractor | Connecticut |
| 11 | Josephine Mcdermott | 57 | Wife | — | New Jersey |
| 12 | Joan Mcdermott | 19 | Daughter | — | New York |
| 13 | Fred Muller | 30 | Brother-in-law | Painter | Rhode Island |
| 14 | Eleanor Muller | 29 | Daughter | — | New Jersey |
| 15 | Richard Muller | 5 | Grandson | — | New York |
| 16 | Flosti Mirmela | 49 | Head | Tinsmith | Finland |
| 17 | Aino Mirmela | 44 | Wife | — | Finland |
| 18 | Daniel Mirmela | 18 | Son | — | New York |
| 19 | Daniel Zupa | 25 | Head | Butcher | New York |
| 20 | Evelyn Zupa | 22 | Wife | — | New York |
| 21 | Mildred Brown | 41 | Mother-in-law | — | New York |
| 22 | Angelo Lavacca | 63 | Head | Laborer | Italy |
| 23 | Anna Lavacca | 61 | Wife | — | Italy |
| 24 | Michael Lavacca | 19 | Son | — | Washington |
| 25 | Angelina Lavacca | 18 | Daughter | — | Washington |
| 26 | George Tanner | 25 | Head | Jury Clerk | New Jersey |
| 27 | Rose Tanner | 24 | Wife | Clerk | New York |
| 28 | Edward Monaghan | 41 | Head | Policeman | New York |
| 29 | Katherine Monaghan | 40 | Wife | — | New York |
| 30 | Edward Monaghan | 8 | Son | — | New York |
| 31 | Sophia Ahrens | 65 | Mother-in-law | — | Germany |
| 32 | William Quick | 41 | Head | Postman | New York |
| 33 | Anne Quick | 40 | Wife | — | New York |
| 34 | Eileen Quick | 15 | Daughter | — | New York |
| 35 | Dorothy Quick | 9 | Daughter | — | New York |
| 36 | Joan Quick | 13 | Daughter | — | New York |
| 37 | James H. Lawlor | 39 | Head | Mechanic | Canada |
| 38 | Lucy Lawlor | 42 | Wife | — | New York |
| 40 | Robert J. Wagler | 46 | Head | Fireman | New York |
Pedigree Summary
William
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)