JF
James Farrell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this James Farrell across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 10-person household.
Age 22
b. ~1918
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Farrell |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn Borough |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Mail Clerk |
| Industry | Wholesale Grocery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 312 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Mail Clerk |
| Township / Ward | Brooklyn Borough |
| Est. Birth Year | ~1918 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mary Farrell | Daughter | — | 15 | ~1925 |
| Anna Farrell | Daughter | — | 11 | ~1929 |
| Julia Farrell | Daughter | — | 8 | ~1932 |
| Margaret Farrell | Daughter | — | 6 | ~1934 |
| James Farrell | Head | — | 41 | ~1899 |
| Julia Cahill | Other | — | 71 | ~1869 |
| James Farrell | Son | — | 22 | ~1918 |
| Michael Farrell | Son | — | 13 | ~1927 |
| Anthony Farrell | Son | — | 10 | ~1930 |
| Mary Farrell | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Kings, New …
Son, age 12
Kings, New York · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farrell |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | No. Ireland |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 22
Kings-County, New York · implied b. ~1918 — 10 household members
| Surname | Farrell |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn Borough |
| 1935 Residence (County) | Kings |
| Occupation | Mail Clerk |
| Industry | Wholesale Grocery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 312 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 James Farrell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Farrell
Son · 1940 · age 22 · b. ~1918 · New York
★ You are viewing this record
Sibling
Anthony Farrell
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Farrell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Farrell
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Farrell
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Farrell
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Farrell
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02616-00540)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur Ofors | 19 | Son | — | New York |
| 42 | Robert Ofors | 15 | Son | — | New York |
| 43 | Harold Ofors | 11 | Son | — | New York |
| 44 | Johannah Ahrens | 71 | Head | — | Germany |
| 45 | George Volkmer | 32 | Head | Chemical Asst. | New York |
| 46 | Katherine Volkmer | 49 | Wife | — | Germany |
| 47 | Frank Generic | 34 | Head | Butcher | Pennsylvania |
| 48 | Jennie E. Generic | 32 | Wife | — | New York |
| 49 | Frances Generic | 6 | Daughter | — | New York |
| 50 | Robert Generic | 2 | Son | — | New York |
| 51 | John Generic | 0 | Son | — | New York |
| 52 | Barbara Baierlein | 70 | Head | — | New York |
| 53 | Theresa Baierlein | 30 | Daughter | — | New York |
| 54 | Anna Miles | 31 | Lodger | Presser | New York |
| 55 | James Farrell | 41 | Head | Laborer | New York |
| 56 | Mary E. Farrell | 41 | Wife | — | New York |
| 57 | James J. Farrell THIS PERSON | 22 | Son | Mail Clerk | New York |
| 58 | Mary J. Farrell | 15 | Daughter | — | New York |
| 59 | Michael Farrell | 13 | Son | — | New York |
| 60 | Anna Farrell | 11 | Daughter | — | New York |
| 61 | Anthony Farrell | 10 | Son | — | New York |
| 62 | Julia Farrell | 8 | Daughter | — | New York |
| 63 | Margaret Farrell | 6 | Daughter | — | New York |
| 64 | Julia Cahill | 71 | Mother-in-law | — | Irish Free State |
| 65 | Alfred Ahrens | 42 | Head | Clerk | New York |
| 66 | Louis Schwartz | 48 | Head | Salesman | Russia |
| 67 | Sadie Schwartz | 52 | Wife | — | Russia |
| 68 | Herman Schwartz | 25 | Son | Counsellor | New York |
| 69 | Ann Schwartz | 26 | Daughter-in-law | Demonstrator | New York |
| 70 | Elliott Schwartz | 11 | Son | — | New York |
| 71 | Charles E. Hood | 43 | Head | Salesman | New York |
| 72 | Mary Hood | 41 | Wife | — | New York |
| 73 | Charles D. Hood | 16 | Son | — | New York |
| 74 | Ulysses Everts | 59 | Head | — | New York |
| 75 | Anna M. Everts | 56 | Wife | Dancing Teacher | New York |
| 76 | Frank Camin | 49 | Head | Chauffeur | New York |
| 77 | Emily Camin | 53 | Wife | — | New York |
| 78 | Flora Camin | 21 | Daughter | Dancing Teacher | New York |
| 79 | Miriam F. Camin | 20 | Son | Operator | New York |
| 80 | Emily Hyde | 77 | Mother-in-law | — | 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)