WS
William Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this William Sullivan across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents Wm & William — first a son (b.~1909), then head of a 6-person household.
Age 31
b. ~1909
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Sullivan |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Utility Man |
| Industry | Medical Center |
| Class of Worker | GW |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Utility Man |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1909 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Regina Sullivan | Daughter | — | 21 | ~1919 |
| Dorothy Sullivan | Daughter | — | 28 | ~1912 |
| William Sullivan | Head | — | 56 | ~1884 |
| William Sullivan | Son | — | 31 | ~1909 |
| Francis Sullivan | Son | — | 34 | ~1906 |
| Clara Sullivan | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Hudson, New …
Son, age 11
Hudson, New Jersey · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Son, age 21
Hudson, New Jersey · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Typist |
| Industry | Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 31
Hudson-County, New Jersey · implied b. ~1909 — 6 household members
| Surname | Sullivan |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | Utility Man |
| Industry | Medical Center |
| Class of Worker | GW |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Wm Sullivan (~0.92 confidence) and father William Sullivan (~0.92 confidence) and father William Sullivan (~0.92 confidence) and mother Grace Sullivan (~0.92 confidence) and mother Clara Sullivan (~0.92 confidence) and mother Grace Sullivan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Wm Sullivan
b. ~1884
Source father
● Household
· direct · ~0.92
Father
William Sullivan
b. ~1884
Source father
● Household
· direct · ~0.92
Father
William Sullivan
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Grace Sullivan
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Clara Sullivan
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Grace Sullivan
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Sullivan
Son · 1940 · age 31 · b. ~1909 · New Jersey
★ You are viewing this record
Sibling
Francis Sullivan
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Sullivan
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Regina Sullivan
Sibling · 1940 · age 21
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-t0627-02401-00693)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ellen Mclaughlin | 61 | Wife | — | New Jersey |
| 42 | Pauline Maurer | 64 | Wife | — | New Jersey |
| 43 | Theodore Mueller | 40 | Head | Truant Off. | New Jersey |
| 44 | Pauline Mueller | 38 | Wife | Teacher | New Jersey |
| 45 | Howard Mueller | 14 | Son | — | New Jersey |
| 46 | David Lane | 77 | Head | Foreman | New Jersey |
| 47 | Mary Lane | 72 | Wife | — | New Jersey |
| 48 | Richard Cullen | 57 | Head | Mason | England |
| 49 | Anna Cullen | 57 | Wife | — | Germany |
| 50 | Richard Jr. Cullen | 32 | Son | Adver. Mer. | New Jersey |
| 51 | Albert Cullen | 30 | Son | Fireman | New Jersey |
| 52 | Thomas Cullen | 25 | Son | Clerk | New Jersey |
| 53 | John Cullen | 16 | Son | — | New Jersey |
| 54 | Anna Cullen | 20 | Daughter | Steno Grapher | New Jersey |
| 55 | Helen Manning | 50 | Head | Private Sten. | New Jersey |
| 56 | William Sullivan | 56 | Head | Registrar | New York |
| 57 | Clara Sullivan | 48 | Wife | — | New Jersey |
| 58 | William Jr. Sullivan THIS PERSON | 31 | Son | Utility Man | New Jersey |
| 59 | Dorothy Sullivan | 28 | Daughter | Stenographer | New Jersey |
| 60 | Francis Sullivan | 34 | Son | — | New Jersey |
| 61 | Regina Sullivan | 21 | Daughter | — | New Jersey |
| 62 | Bernard Dinneen | 47 | Head | Fire Capt. | New Jersey |
| 63 | Veronica Dinneen | 45 | Wife | — | New Jersey |
| 64 | Mary Dinneen | 23 | Daughter | — | New Jersey |
| 65 | Bernard Jr. Dinneen | 20 | Son | — | New Jersey |
| 66 | Robert Dinneen | 19 | Son | — | New Jersey |
| 67 | Jack Dinneen | 16 | Son | — | New Jersey |
| 68 | James Ford | 63 | Head | Porter | New Jersey |
| 69 | Bridget Ford | 61 | Wife | Laborer | New Jersey |
| 70 | James Jr. Ford | 35 | Son | Laborer | New Jersey |
| 71 | Frank Ford | 25 | Son | Manager | New Jersey |
| 72 | Helen Ford | 32 | Daughter | Operator | New Jersey |
| 73 | Rose Mary Ford | 17 | Daughter | — | New Jersey |
| 74 | Sanford Brush | 60 | Head | Engineer | New York |
| 75 | Levina Brush | 54 | Wife | — | New York |
| 76 | Sanford Brush | 29 | Head | Mechanic | New Jersey |
| 77 | Irene Brush | 29 | Wife | — | Pennsylvania |
| 78 | Charles Lynch | 63 | Head | Laborer | New Jersey |
| 79 | Mary Lynch | 57 | Wife | — | New Jersey |
| 80 | Margaret Shay | 62 | Lodger | — | New Jersey |
Pedigree Summary
William + 3 siblings
Gen 1 · 6 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)