WM
William Mccoy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this William Mccoy across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a son (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Bronx |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Occupation | Civil Engin |
| Industry | N.Y.C |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Civil Engin |
| Township / Ward | Bronx |
| Est. Birth Year | ~1907 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mccoy | Son | — | 33 | ~1907 |
| Gertrude Mccoy | Daughter | — | 35 | ~1905 |
| Mary Mccoy | Head | — | 70 | ~1870 |
| Agnes Mccoy | Daughter | — | 42 | ~1898 |
Census Appearances
1920
Bronx, New …
Son, age 12
Bronx, New York · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Bronx, New …
Son, age 23
Bronx, New York · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Engineer |
| Industry | Bronx Borough |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Son, age 33
Bronx-County, New York · implied b. ~1907 — 4 household members
| Surname | McCoy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Bronx |
| 1935 Residence (County) | Bronx |
| Occupation | Civil Engin |
| Industry | N.Y.C |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | Hs 4 |
| 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 Mccoy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Mccoy (~0.92 confidence) and mother Mary Mccoy (~0.92 confidence) and father Patrick Mccoy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Mccoy
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Mary Mccoy
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Patrick Mccoy
b. ~1876
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Mccoy
Son · 1940 · age 33 · b. ~1907 · New York
★ You are viewing this record
Sibling
Gertrude Mccoy
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Mccoy
Sibling · 1940 · age 42
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 — 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-t0627-02487-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marie Fiscella | 17 | Granddaughter | Stenographer | New York |
| 2 | Walter Kneesemull | 26 | Head | Meat Cutter | Germany |
| 3 | Ester Kneesemull | 22 | Wife | — | Germany |
| 4 | Sonya Kneesemull | 5 | Daughter | — | New York |
| 5 | Annette Kneesemull | 2 | Daughter | — | New York |
| 6 | Anna Halleren | 52 | Head | — | New York |
| 7 | Carl Schaps | 31 | Head | Fireman | New York |
| 8 | Amie Schaps | 32 | Wife | — | New York |
| 9 | Robert Cassar | 60 | Head | Salesman | New York |
| 10 | Ida Cassar | 59 | Wife | — | New York |
| 11 | William Andersen | 43 | Head | Clerk | New York |
| 12 | Regina Andersen | 40 | Wife | — | New York |
| 13 | Richard Andersen | 14 | Son | — | New York |
| 14 | William Andersen | 5 | Son | — | New York |
| 15 | Helene Platt | 52 | Head | Clerk | New York |
| 16 | Hered Platt | 25 | Son | — | New York |
| 17 | Mary Mccoy | 70 | Head | — | New York |
| 18 | Agnes Mccoy | 42 | Daughter | — | New York |
| 19 | Gertrude Mccoy | 35 | Daughter | Clerk | New York |
| 20 | William Mccoy THIS PERSON | 33 | Son | Civil Engin | New York |
| 21 | Robert Barry | 43 | Head | Truck Driver | New York |
| 22 | Ellen Barry | 30 | Wife | — | New York |
| 23 | Jean Barry | 2 | Daughter | — | New York |
| 24 | Herbert Deebant | 37 | Head | Police Lieut | New York |
| 25 | June Deebant | 35 | Wife | — | New Jersey |
| 26 | Herbert Deebant | 14 | Son | — | New York |
| 27 | Michael Flannery | 42 | Head | Correction Officer | Ireland |
| 28 | Elizabeth Flannery | 38 | Wife | — | Ireland |
| 29 | James Keeley | 48 | Head | Build Supt | England |
| 30 | Helen Keeley | 55 | Wife | — | Poland |
| 31 | Florence Keeley | 36 | Daughter | — | New York |
| 32 | Walter Keeley | 6 | Son | — | New York |
| 33 | Charles Charles | 54 | Head | Boat Builder | New York |
| 34 | Anne Charles | 52 | Wife | — | New York |
| 35 | Eleanor Charles | 20 | Daughter | Stenographer | New York |
| 36 | Charles Jr Charles | 18 | Son | — | New York |
| 37 | William Charles | 10 | Son | — | New York |
| 38 | John Barr | 45 | Head | Power Plant | New York |
| 39 | Frances Barr | 44 | Wife | — | New York |
| 40 | Regina Barr | 10 | Daughter | — | New York |
Pedigree Summary
William + 2 siblings
Gen 1 · 3 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)