CS
Cornelius Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bergen-County, New Jersey
Our Model Tree links this Cornelius Sullivan across the 1910, 1920, 1930 and 1940 US Censuses in Bergen-County, New Jersey (XGBoost, ~Confirmed), with identified parents Cornelius & Cornelius — first a head (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bergen-County, New Jersey |
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | North Bergen |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Private |
| Class of Worker | W |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Chauffeur |
| Township / Ward | Englewood City |
| Est. Birth Year | ~1903 |
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 Cornelius | Age | Birth yr |
|---|---|---|---|---|
| Cornelius Sullivan | Son | — | 12 | ~1928 |
| Cornelius Sullivan | Head | — | 37 | ~1903 |
| Mary Sullivan | Spouse | — | 34 | ~1906 |
Census Appearances
1910
Hudson, New …
Son, age 8
Hudson, New Jersey · implied b. ~1902 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Hudson, New …
Son, age 17
Hudson, New Jersey · implied b. ~1903 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Machinist |
| Industry | Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Head, age 27
Hudson, New Jersey · implied b. ~1903 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 23 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Radio Set | R |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Bergen-County, New …
Head, age 37
Bergen-County, New Jersey · implied b. ~1903 — 3 household members
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | North Bergen |
| 1935 Residence (County) | Hudson |
| Occupation | Chauffeur |
| Industry | Private |
| Class of Worker | W |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | New Jersey |
| 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 Cornelius Sullivan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Cornelius Sullivan (~0.92 confidence) and father Cornelius Sullivan (~0.92 confidence) and mother Edith Sullivan (~0.92 confidence) and mother Rose Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Cornelius Sullivan
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Cornelius Sullivan
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Edith Sullivan
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Rose Sullivan
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Cornelius Sullivan
Head · 1940 · age 37 · b. ~1903 · New Jersey
★ 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 — Bergen-County, New Jersey
Open full size
1940 US Federal Census — Bergen-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02306-00721)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cornelius Sullivan THIS PERSON | 37 | Head | Chauffeur | New Jersey |
| 2 | Mary Sullivan | 34 | Wife | — | New Jersey |
| 3 | Cornelius Sullivan | 12 | Son | — | New Jersey |
| 4 | Hill Madden | 39 | Head | Agent | New York |
| 5 | Mary Madden | 33 | Wife | — | New York |
| 6 | Hill Madden | 5 | Son | — | New Jersey |
| 7 | Ronald Mulliken | 31 | Head | Dealer | New Jersey |
| 8 | Gladys Mulliken | 30 | Wife | — | New Jersey |
| 9 | Ronald Mulliken | 6 | Son | — | New Jersey |
| 10 | Gail Mulliken | 2 | Daughter | — | New Jersey |
| 11 | Mable Littlefield | 42 | Head | Beautician | New York |
| 12 | Fredrick Valentine | 21 | Son | Draftsman | New Jersey |
| 13 | George Kessler | 34 | Head | Clerk | New Jersey |
| 14 | Marie Kessler | 32 | Wife | — | New York |
| 15 | Jean Kessler | 5 | Daughter | — | New Jersey |
| 16 | Arthur Hartwell | 36 | Head | Foreman | Penn |
| 17 | Sarah Hartwell | 35 | Wife | — | New Jersey |
| 18 | Jane Hartwell | 9 | Daughter | — | Penn |
| 19 | Katherine Hartwell | 8 | Daughter | — | Penn |
| 20 | Arthur Hartwell | 4 | Son | — | New Jersey |
| 21 | Walter M. Carrick | 48 | Head | Practicing | New York |
| 22 | Margaret Carrick | 48 | Wife | Manager | New York |
| 23 | Janet Carrick | 19 | Daughter | — | New York |
| 24 | Joseph Hagg | 42 | Head | Salesman | Germany |
| 25 | Maria Hagg | 33 | Wife | — | Germany |
| 26 | Rose M. Hagg | 10 | Daughter | — | New York |
| 27 | Gloria Hagg | 7 | Daughter | — | Penn |
| 28 | Ludicka Hagg | 0 | Daughter | — | New Jersey |
| 29 | George Dayton | 45 | Head | Prop. | New Jersey |
| 30 | Anna Dayton | 43 | Wife | — | New Jersey |
| 31 | Edith Dayton | 21 | Daughter | — | New Jersey |
| 32 | Dorothy Dayton | 12 | Daughter | — | New Jersey |
| 33 | Roy Grisback | 44 | Head | Salesman | New Jersey |
| 34 | Lily Grisback | 41 | Wife | — | New York |
| 35 | Ruth Grisback | 9 | Daughter | — | New Jersey |
| 36 | Betty Lou Grisback | 8 | Daughter | — | New Jersey |
| 37 | John Reinhard | 72 | Father-in-law | — | New York |
| 38 | Ned Skinner | 45 | Head | Prof. | New Mexico |
| 39 | Ellen Skinner | 36 | Wife | — | Missouri |
| 40 | Geo Skinner | 76 | Mother | — | Kentucky |
Pedigree Summary
Cornelius
Gen 1 · 4 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)