MS
Margaret Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Margaret Sullivan across the 1910, 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a daughter (b.~1908), then head of a 6-person household.
Age 32
b. ~1908
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Teacher |
| Industry | St. Michaels |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Teacher |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1908 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Catherine Sullivan | Daughter | — | 18 | ~1922 |
| Anna Sullivan | Daughter | — | 23 | ~1917 |
| Margaret Sullivan | Daughter | — | 32 | ~1908 |
| Patrick Sullivan | Head | — | 58 | ~1882 |
| Joseph Sullivan | Son | — | 21 | ~1919 |
| Catherine Sullivan | Spouse | — | 58 | ~1882 |
Census Appearances
1910
Hudson, New …
Daughter, age 1
Hudson, New Jersey · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Hudson, New …
Daughter, age 10
Hudson, New Jersey · implied b. ~1910 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Daughter, age 21
Hudson, New Jersey · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Bookkeeper |
| Industry | Telephone Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 32
Hudson-County, New Jersey · implied b. ~1908 — 6 household members
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | Teacher |
| Industry | St. Michaels |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Margaret Sullivan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Sullivan (~0.92 confidence) and father Patrick Sullivan (~0.92 confidence) and mother Margaret Sullivan (~0.92 confidence) and mother Catherine Sullivan (~0.92 confidence) and mother Margaret Sullivan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Sullivan
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Patrick Sullivan
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Margaret Sullivan
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Catherine Sullivan
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Margaret Sullivan
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Sullivan
Daughter · 1940 · age 32 · b. ~1908 · New Jersey
★ You are viewing this record
Sibling
Anna Sullivan
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Sullivan
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Sullivan
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-t0627-02407-00334)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Donald Tellen | 6 | Son | — | New Jersey |
| 2 | Mary Shaw | 66 | Mother | — | New Jersey |
| 3 | Melville Shaw | 35 | Brother in law | Salesman | New Jersey |
| 4 | John Evers | 44 | Head | Asst. Supt. | New Jersey |
| 5 | Mary Evers | 38 | Wife | — | New Jersey |
| 6 | Veronica Evers | 18 | Daughter | Typerist | New Jersey |
| 7 | John Evers | 17 | Son | — | New Jersey |
| 8 | Mary Evers | 11 | Daughter | — | New Jersey |
| 9 | Matthew Evers | 7 | Son | — | New Jersey |
| 10 | Mary V Evers | 70 | Mother | — | New Jersey |
| 11 | Adolph Schadler | 67 | Head | Junior Clerk | New Jersey |
| 12 | Bernadine Schadler | 67 | Wife | Deputy Court House | New Jersey |
| 13 | John P Hancock | 41 | Head | Plumber | New Jersey |
| 14 | Bernadine Hancock | 40 | Wife | — | New Jersey |
| 15 | Jean Hancock | 9 | Daughter | — | New Jersey |
| 16 | Jack Hancock | 5 | Son | — | New Jersey |
| 17 | Patricia Hancock | 5 | Daughter | — | New Jersey |
| 18 | Donald Hancock | 1 | Son | — | New Jersey |
| 19 | Matthew Geary | 40 | Head | Clerk | New Jersey |
| 20 | Frances Geary | 39 | Wife | — | Eire |
| 21 | Frances Geary | 6 | Daughter | — | New Jersey |
| 22 | Kathleen Geary | 5 | Daughter | — | New Jersey |
| 23 | Harry L Griswold | 80 | Head | Clerk | New Jersey |
| 24 | Anna L Griswold | 80 | Wife | — | New Jersey |
| 25 | Patrick H Sullivan | 58 | Head | Commissioner Of Election | New Jersey |
| 26 | Catherine Sullivan | 58 | Wife | — | New Jersey |
| 27 | Margaret Sullivan THIS PERSON | 32 | Daughter | Teacher | New Jersey |
| 28 | Anna M Sullivan | 23 | Daughter | Stenographer | New Jersey |
| 29 | Joseph B Sullivan | 21 | Son | Machine Worker | New Jersey |
| 30 | Catherine Sullivan | 18 | Daughter | Piece Worker | New Jersey |
| 31 | Lester Space | 40 | Head | Inspector | New Jersey |
| 32 | Alice Space | 48 | Wife | — | New York |
| 33 | Edward Space | 21 | Son | Mechanic | New York |
| 34 | John Snell | 68 | Head | Bookkeeper | New York |
| 35 | Roy Thompson | 35 | Son in law | Bookkeeper | New York |
| 36 | Norah Thompson | 34 | Daughter | — | New Jersey |
| 37 | Doris Thompson | 7 | Granddaughter | — | New Jersey |
| 38 | William Thompson | 4 | Grandson | — | New Jersey |
| 39 | Joanne Thompson | 1 | Granddaughter | — | New Jersey |
| 40 | Martin J Brennan | 45 | Head | Butcher | New Jersey |
Pedigree Summary
Margaret + 3 siblings
Gen 1 · 5 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)