WC
William Cox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this William Cox across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Anna — first a head (b.~1901), then head of a 5-person household.
Age 39
b. ~1901
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Cox |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Laborer |
| Industry | Retail Groceries |
| Class of Worker | PW |
| Hours Worked | 79 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Laborer |
| Township / Ward | New York City |
| Est. Birth Year | ~1901 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Caroline Cox | Daughter | — | 1 | ~1939 |
| Patricia Cox | Daughter | — | 9 | ~1931 |
| William Cox | Head | — | 39 | ~1901 |
| William Cox | Son | — | 2 | ~1938 |
| Helen Cox | Spouse | — | 34 | ~1906 |
Census Appearances
1920
Kings, New …
Son, age 17
Kings, New York · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Head, age 27
Kings, New York · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 21 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Chauffeur |
| Industry | Trucking |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Head, age 39
Kings-County, New York · implied b. ~1901 — 5 household members
| Surname | Cox |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Laborer |
| Industry | Retail Groceries |
| Class of Worker | PW |
| Hours Worked | 79 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 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 William Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Cox (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Cox
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Cox
Head · 1940 · age 39 · b. ~1901 · 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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-02582-00468)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 45 | William Cox THIS PERSON | 39 | Head | Laborer | New York |
| 46 | Helen Cox | 34 | Wife | — | Brooklyn |
| 47 | Patricia Cox | 9 | Daughter | — | Brooklyn |
| 48 | William Cox | 2 | Son | — | Brooklyn |
| 49 | Caroline Cox | 1 | Daughter | — | Brooklyn |
| 50 | Murrel Sanders | 24 | Head | Head Shipping | Alabama |
| 51 | Evelyn Sanders | 31 | Sister | Cashier | Alabama |
| 52 | Mary Rosen | 30 | Lodger | Bookkeeper | New Jersey |
| 53 | Gerald Sanders | 28 | Brother | Clerk | Alabama |
| 54 | Paulina Siegl | 51 | Lodger | Operator | Russia |
| 55 | William Sullivan | 43 | Head | Fireman | New York |
| 56 | Anna Sullivan | 33 | Wife | — | Brooklyn |
| 57 | William Sullivan | 11 | Son | — | Brooklyn |
| 58 | Dorothy Sullivan | 3 | Daughter | — | Brooklyn |
| 59 | Joan Sullivan | 1 | Daughter | — | Brooklyn |
| 60 | George Nahee | 32 | Head | Pattern Maker | Syria |
| 61 | Pauline Nahee | 26 | Wife | — | Italy |
| 62 | William Maher | 40 | Head | Court Attendant | Brooklyn |
| 63 | Muriel Maher | 36 | Wife | — | Brooklyn |
| 64 | William Maher | 15 | Son | New Worker | Brooklyn |
| 65 | George Ballweg | 47 | Head | Manager | New York |
| 66 | Emma Ballweg | 45 | Wife | — | Brooklyn |
| 67 | Edward Ballweg | 16 | Son | New Worker | Brooklyn |
| 68 | Bertha Knobel | 71 | Mother in law | — | Brooklyn |
| 69 | Benedict Ferro | 28 | Head | Structural Engineer | New York |
| 70 | Julia Ferro | 30 | Wife | Public Nurse | Syracuse |
| 71 | Benedict Ferro | 10 | Son | — | Brooklyn |
| 72 | Robert Ferro | 8 | Son | — | Brooklyn |
| 73 | Julia Ferro | 7 | Daughter | — | Brooklyn |
| 74 | James Meehan | 23 | Head | Cable Worker | Brooklyn |
| 75 | Lillian Meehan | 52 | Mother | — | Brooklyn |
| 76 | Michael O'Brien | 38 | Head | Invoice Clerk | Newfoundland |
| 77 | Celia O'Brien | 34 | Wife | Invoice Clerk | Newfoundland |
| 78 | Dolores O'Brien | 4 | Daughter | — | Brooklyn |
| 79 | Caroline O'Brien | 2 | Daughter | — | Brooklyn |
| 80 | Harrold Delaney | 38 | Head | Timekeeper | Brooklyn |
Pedigree Summary
William
Gen 1 · 1 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)