CS
Cornelius Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Cornelius Sullivan across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed), with identified parents James & Catherine — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1914 |
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 | — | 26 | ~1914 |
| Katherine Henning | Daughter | — | 31 | ~1909 |
| Mary Sullivan | Head | — | 58 | ~1882 |
Census Appearances
1920
Hudson, New …
Son, age 5
Hudson, New Jersey · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| 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 |
1930
Union, New …
Son, age 16
Union, New Jersey · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Helper |
| Industry | Manufacturing Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 26
Union-County, New Jersey · implied b. ~1914 — 3 household members
| Surname | Sullivan |
| Given Name | Cornelius |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Highest Grade | No 6 |
| 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 Cornelius Sullivan across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father James Sullivan (~0.92 confidence) and mother Catherine Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Sullivan
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Catherine Sullivan
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Cornelius Sullivan
Son · 1940 · age 26 · b. ~1914 · New Jersey
★ You are viewing this record
Sibling
Katherine Henning
Sibling · 1940 · age 31
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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02397-00468)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rose Grotte | 18 | daughter | New Worker | New Jersey |
| 2 | Carmella Grotte | 16 | daughter | New Worker | New Jersey |
| 3 | Josephine Augustine | 54 | head | — | Poland |
| 4 | Adam Augustine | 23 | son | Operator | New Jersey |
| 5 | Bessie Augustine | 20 | son | New Worker | New Jersey |
| 6 | Willy Augustine | 19 | son | New Worker | New Jersey |
| 7 | John Smith | 39 | head | Laborer | Canada-Eng |
| 8 | Edna Smith | 31 | wife | — | New Jersey |
| 9 | Patricia Smith | 4 | daughter | — | New Jersey |
| 10 | Loretta Smith | 1 | daughter | — | New Jersey |
| 11 | John Kenny | 51 | head | Laborer | New Jersey |
| 12 | Ella Kenny | 50 | wife | — | England |
| 13 | Agnes Kenny | 18 | daughter | — | New Jersey |
| 14 | James Kenny | 16 | son | — | New Jersey |
| 15 | Lawrence Kenny | 14 | son | — | New Jersey |
| 16 | Paul Kenny | 12 | son | — | New Jersey |
| 17 | Annunziata | 46 | head | Polisher | Italy |
| 18 | Katherine Annunziata | 26 | daughter | Grinder | New Jersey |
| 19 | John Hecker | 28 | head | Odd Jobs | New Jersey |
| 20 | Lune Hecker | 27 | wife | — | Austria |
| 21 | John Hecker | 1 | son | — | New Jersey |
| 22 | Anna Preenbe | 43 | head | — | New Jersey |
| 23 | Alfred Preenbe | 39 | brother | Painter | New Jersey |
| 24 | William Preenbe | 50 | brother | Laborer | New Jersey |
| 25 | Julia Seigried | 45 | head | — | Hungary |
| 26 | Anna Seigried | 18 | daughter | Bench Work | New Jersey |
| 27 | Adam Seigried | 34 | head | Clerk | New Jersey |
| 28 | Amelia Seigried | 22 | wife | — | New Jersey |
| 29 | Eva Seigried | 12 | daughter | — | New Jersey |
| 30 | Katherine Seigried | 1 | daughter | — | New Jersey |
| 31 | William Gehring | 29 | head | Shipping Clerk | New Jersey |
| 32 | Emma Gehring | 28 | wife | — | New Jersey |
| 33 | Mary Mauritz | 67 | head | — | Poland |
| 34 | Frederick Provitt | 39 | head | Laborer | New Jersey |
| 35 | Julia Provitt | 37 | wife | — | New Jersey |
| 36 | Mary Sullivan | 58 | head | — | New Jersey |
| 37 | Cornelius Sullivan THIS PERSON | 26 | son | — | New Jersey |
| 38 | Katherine Henning | 31 | daughter | Inelady | New Jersey |
| 39 | John Palocki | 38 | head | Laborer | New Jersey |
| 40 | Cecelia Palocki | 37 | wife | — | New Jersey |
Pedigree Summary
Cornelius + 1 sibling
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)