ES
Ellen Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Erie-County, New York
Our Model Tree links this Ellen Sullivan across the 1920, 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, New York |
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Coal Company |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 384 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Stenographer |
| Township / Ward | Buffalo City |
| Est. Birth Year | ~1919 |
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 Ellen | Age | Birth yr |
|---|---|---|---|---|
| Thomas Sullivan | Head | — | 50 | ~1890 |
| Theresa Sullivan | Daughter | — | 44 | ~1896 |
| Marie Sullivan | Daughter | — | 23 | ~1917 |
| Ellen Sullivan | Daughter | — | 21 | ~1919 |
| Rita Sullivan | Daughter | — | 13 | ~1927 |
| Thomas Sullivan | Son | — | 17 | ~1923 |
Census Appearances
1920
Erie, New …
Daughter, age 1
Erie, New York · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Erie, New …
Daughter, age 11
Erie, New York · implied b. ~1919 — 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 | 11 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Erie-County, New …
Daughter, age 21
Erie-County, New York · implied b. ~1919 — 6 household members
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Occupation | Stenographer |
| Industry | Coal Company |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 384 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Sullivan (~0.49 confidence) and father Thomas Sullivan (~0.84 confidence) and father Thomas Sullivan (~0.92 confidence) and father Thomas Sullivan (~0.54 confidence) and father Thomas Sullivan (~0.92 confidence) and mother Teresa Sullivan (~0.92 confidence). The pedigree spans 3 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.77
Father
Thomas Sullivan
b. ~1870
Source mother>father>father
● Household
· direct · ~0.49
Father
Thomas Sullivan
b. ~1870
Source father>father
● Household
· direct · ~0.84
Father
Thomas Sullivan
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Thomas Sullivan
b. ~1890
Source mother>father
● Household
· direct · ~0.54
Father
Thomas Sullivan
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Teresa Sullivan
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ellen Sullivan
Daughter · 1940 · age 21 · b. ~1919 · New York
★ You are viewing this record
Sibling
Theresa Sullivan
Sibling · 1940 · age 44
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Sullivan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Sullivan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Sullivan
Sibling · 1940 · age 23
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 — Erie-County, New York
Open full size
1940 US Federal Census — Erie-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02823-00902)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daniel Murphy | 3 | Son | — | New York |
| 2 | Kathleen Murphy | 2 | Daughter | — | New York |
| 3 | Thomas J. Sullivan | 50 | Head | Stationary Engineer | New York |
| 4 | Theresa B. Sullivan | 44 | Daughter | — | New York |
| 5 | Marie Sullivan | 23 | Daughter | Auditor | New York |
| 6 | Ellen Sullivan THIS PERSON | 21 | Daughter | Stenographer | New York |
| 7 | Thomas Sullivan | 17 | Son | New Worker | New York |
| 8 | Rita Sullivan | 13 | Daughter | — | New York |
| 9 | Thomas Wiles | 76 | Head | — | Pennsylvania |
| 10 | James X. Wiles | 35 | Son | Shipping Clerk | New York |
| 11 | Jeannette Frazer | 42 | Head | — | New York |
| 12 | John Frazer | 19 | Son | Chipping Iron | New York |
| 13 | Mary Jane Frazer | 15 | Daughter | — | New York |
| 14 | Norma Frazer | 13 | Daughter | — | New York |
| 15 | Mable Joyce | 54 | Partner | — | Canada-English |
| 16 | Harry Joseph Joyce | 21 | Nephew | Service Gas Station | New York |
| 17 | Gerald J. Fitzgibbons | 33 | Head | Railroad Clerk | New York |
| 18 | Katherine Fitzgibbons | 29 | Wife | — | New York |
| 19 | Joan R. Fitzgibbons | 6 | Daughter | — | New York |
| 20 | Carol B. Fitzgibbons | 1 | Daughter | — | New York |
| 21 | Albert Kirker | 29 | Head | Clerical | Pennsylvania |
| 22 | Margie Kirker | 24 | Wife | — | New York |
| 23 | Patricia Kirker | 4 | Daughter | — | New York |
| 24 | Barry Kirker | 2 | Son | — | New York |
| 25 | Walter Dobucki | 41 | Head | Laborer | New York |
| 26 | Casimiera Dobucki | 39 | Wife | — | New York |
| 27 | Dorothy Dobucki | 16 | Daughter | — | New York |
| 28 | Edward Knoll | 51 | Head | Steel Carpenter | New York |
| 29 | Elizabeth Knoll | 51 | Wife | — | Pennsylvania |
| 30 | George Bergstrom | 55 | Head | Maintenance Foreman | New York |
| 31 | Edith Bergstrom | 53 | Wife | — | New York |
| 32 | Arthur Kreiner | 29 | Head | Teacher | New York |
| 33 | Dorothy Kreiner | 27 | Daughter | — | New York |
| 34 | Robert Kreiner | 3 | Son | — | New York |
| 35 | Robert Gaylor | 46 | Head | Motor Vehicle Inspector | New York |
| 36 | Muriel Gaylor | 37 | Wife | Insurance Clerk | New York |
| 37 | William A. Hayes | 45 | Head | Laborer | Pennsylvania |
| 38 | Florence Hayes | 43 | Wife | — | Pennsylvania |
| 39 | James Hayes | 21 | Son | Stocker | Pennsylvania |
| 40 | Edward Hayes | 19 | Son | Clerk | Pennsylvania |
Pedigree Summary
Ellen + 4 siblings
Gen 1 · 3 parents
~0.92
Gen 2 · 2 grandparents
~0.69
Gen 3 · 1 great-grandparents
~0.49
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)