ES
Ellen Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nassau-County, New York
Our Model Tree links this Ellen Sullivan across the 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Nassau-County, New York |
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Roslyn Heights |
| 1935 Residence (County) | Nassau |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Roslyn Heights |
| Est. Birth Year | ~1922 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ellen | Age | Birth yr |
|---|---|---|---|---|
| Michael Sullivan | Head | — | 48 | ~1892 |
| Bertha Sullivan | Spouse | — | 46 | ~1894 |
| Ellen Sullivan | Daughter | — | 18 | ~1922 |
| Robert Sullivan | Son | — | 4 | ~1936 |
| Florence Sullivan | Daughter | — | 15 | ~1925 |
| Bertha Sullivan | Daughter | — | 9 | ~1931 |
| James Sullivan | Son | — | 7 | ~1933 |
| John Sullivan | Son | — | 13 | ~1927 |
| Edith Sullivan | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Nassau, New …
Daughter, age 8
Nassau, New York · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Nassau-County, New …
Daughter, age 18
Nassau-County, New York · implied b. ~1922 — 9 household members
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Roslyn Heights |
| 1935 Residence (County) | Nassau |
| Industry | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Ellen Sullivan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ellen Sullivan
Daughter · 1940 · age 18 · b. ~1922 · New York
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Sibling
Florence Sullivan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sullivan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Sullivan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Sullivan
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Sullivan
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertha Sullivan
Sibling · 1940 · age 9
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 — Nassau-County, New York
Open full size
1940 US Federal Census — Nassau-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02692-00292)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jean Mullen | 10 | Daughter | — | New York |
| 2 | Roswell K Mullen | 7 | Son | — | New York |
| 3 | Charles Hearns | 41 | Head | Proprietor | England |
| 4 | Marion Hearns | 39 | Wife | — | New York |
| 5 | Alan Hearns | 9 | Son | — | New York |
| 6 | May Murphy | 46 | Head | Bookkeeper | New York |
| 7 | William Joyce | 37 | Brother | Secretary | New York |
| 8 | Michael Sullivan | 48 | Head | Laborer | Free State |
| 9 | Bertha Sullivan | 46 | Wife | — | Massachusetts |
| 10 | Ellen Sullivan THIS PERSON | 18 | Daughter | — | Massachusetts |
| 11 | Florence Sullivan | 15 | Daughter | — | Massachusetts |
| 12 | John Sullivan | 13 | Son | — | Massachusetts |
| 13 | Edith Sullivan | 11 | Daughter | — | Massachusetts |
| 14 | Bertha Sullivan | 9 | Daughter | — | New York |
| 15 | James Sullivan | 7 | Son | — | New York |
| 16 | Robert Sullivan | 4 | Son | — | New York |
| 17 | Ernest Jr Steiger | 38 | Head | Florist | New York |
| 18 | Valerie Steiger | 38 | Wife | — | New York |
| 19 | Ernest 3Rd Steiger | 15 | Son | — | New York |
| 20 | Carl Steiger | 15 | Son | — | New York |
| 21 | Valerie Steiger | 11 | Daughter | — | New York |
| 22 | Alice Steiger | 9 | Daughter | — | New York |
| 23 | Florence Steiger | 6 | Daughter | — | New York |
| 24 | William Henry | 65 | Head | Laborer | New York |
| 25 | Catherine Henry | 64 | Wife | — | New York |
| 26 | Dorothy Henry | 38 | Daughter | Clerk | New York |
| 27 | William Henry | 30 | Son | Mechanic | New York |
| 28 | Phillip Henry | 24 | Son | Lineman | New York |
| 29 | Mary Henry | 23 | Daughter | — | New York |
| 30 | Romulo Paparelli | 58 | Head | Mason | Italy |
| 31 | Lucy Paparelli | 57 | Wife | — | Italy |
| 32 | Elvira Paparelli | 24 | Daughter | Clerk | New York |
| 33 | Rachel Paparelli | 22 | Daughter | Clerk | New York |
| 34 | Frederick Paparelli | 20 | Son | Florist | New York |
| 35 | Arthur Paparelli | 18 | Son | New Worker | New York |
| 36 | Gloria Paparelli | 15 | Daughter | — | New York |
| 37 | Frederick Wood | 39 | Head | Carpenter | New York |
| 38 | Madeline Wood | 38 | Wife | — | New York |
| 39 | Ruth Wood | 17 | Daughter | — | New York |
| 40 | George Wood | 16 | Son | — | New York |
Related Census Records
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)