WM
William Mccormick — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this William Mccormick across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents James & Ada — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | McCormick |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Laborer |
| Industry | Roofing |
| Class of Worker | PW |
| Hours Worked | 156 |
| Income (1939) | 80 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Laborer |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Margaret Mccormick | Daughter | — | 18 | ~1922 |
| Georgia Mccormick | Daughter | — | 12 | ~1928 |
| Aida Mccormick | Head | — | 45 | ~1895 |
| Helen Mccormick | Daughter | — | 15 | ~1925 |
| William Mccormick | Son | — | 24 | ~1916 |
Census Appearances
1920
Hudson, New …
Son, age 4
Hudson, New Jersey · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormack |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Scotland |
| Mother's Birthplace | New York |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Son, age 15
Hudson, New Jersey · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormack |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Scotland |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 24
Hudson-County, New Jersey · implied b. ~1916 — 5 household members
| Surname | McCormick |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | Laborer |
| Industry | Roofing |
| Class of Worker | PW |
| Hours Worked | 156 |
| Income (1939) | 80 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Mccormick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Mccormack (~0.92 confidence) and mother Ada Mccormack (~0.92 confidence) and mother Aida Mccormick (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Mccormack
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Ada Mccormack
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Aida Mccormick
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mccormick
Son · 1940 · age 24 · b. ~1916 · New Jersey
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Sibling
Georgia Mccormick
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mccormick
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mccormick
Sibling · 1940 · age 18
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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02410-00593)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Henry Koziol | 17 | Son | Laborer | New Jersey |
| 42 | Theodore Koziol | 15 | Son | — | New Jersey |
| 43 | Stanley Szymanski | 52 | Head | Case Maker | Poland |
| 44 | Mary Szymanski | 51 | Wife | — | Poland |
| 45 | Sophie Szymanski | 29 | Daughter | Partner | Poland |
| 46 | Jean M. Szymanski | 27 | Daughter | Typist | Poland |
| 47 | Celine Szymanski | 15 | Daughter | — | New Jersey |
| 48 | Max Roman | 51 | Head | Elevator Operator | Pennsylvania |
| 49 | Mary Roman | 54 | Wife | — | Poland |
| 50 | Edward Roman | 19 | Son | Presser | New Jersey |
| 51 | Sadie Cox | 59 | Head | Finisher | New Jersey |
| 52 | Charles Chinn | 56 | Head | Route Man | New York |
| 53 | Martha Chinn | 44 | Wife | — | New Jersey |
| 54 | John Sternard | 22 | Stepson | Dry Cleaner | New Jersey |
| 55 | Robert Sternard | 16 | Stepson | New Worker | New Jersey |
| 56 | Walter Johnson | 55 | Lodger | Driller Supervisor | New York |
| 57 | (Block 20 And Begins Block 21) | None | — | — | — |
| 58 | Theodore Bredenbach | 43 | Head | Chef | Germany |
| 59 | Thealia Bredenbach | 39 | Wife | — | Germany |
| 60 | Theodore Bredenbach | 8 | Son | — | New Jersey |
| 61 | Henry Bredenbach | 7 | Son | — | New Jersey |
| 62 | Frederick Bredenbach | 4 | Son | — | New Jersey |
| 63 | John Luth | 41 | Lodger | Counterman | Germany |
| 64 | John Rarsh | 50 | Head | Stationary Engineer | New Jersey |
| 65 | Anna Rarsh | 46 | Wife | — | New Jersey |
| 66 | Lillian Rarsh | 23 | Daughter | Waitress | New Jersey |
| 67 | Aida Mccormick | 45 | Head | Saleswoman | New York |
| 68 | William Mccormick THIS PERSON | 24 | Son | Laborer | New Jersey |
| 69 | Margaret Mccormick | 18 | Daughter | Saleswoman | New Jersey |
| 70 | Helen Mccormick | 15 | Daughter | — | New Jersey |
| 71 | Georgia Mccormick | 12 | Daughter | — | New Jersey |
| 72 | Edward Holden | 50 | Head | Truck Driver | New Jersey |
| 73 | Helen Holden | 43 | Wife | — | New Jersey |
| 74 | Florence Holden | 26 | Daughter | Machine Operator | New Jersey |
| 75 | Cecilia Holden | 15 | Daughter | — | New Jersey |
| 76 | Raymond Holden | 12 | Son | — | New Jersey |
| 77 | Catherine Holden | 10 | Daughter | — | New Jersey |
| 78 | Dolores Holden | 5 | Daughter | — | New Jersey |
| 79 | William Laranger | 36 | Lodger | Laborer | New Jersey |
| 80 | James Arkins | 60 | Head | Laborer | New Jersey |
Pedigree Summary
William + 3 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)