HS
Helen Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Helen Sullivan across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Nell & Rosina — first a daughter (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Columbia Twp |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Meat Packing mfg. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Stenographer |
| Township / Ward | Columbia Twp |
| Est. Birth Year | ~1910 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Loretta Sullivan | Daughter | — | 37 | ~1903 |
| Helen Sullivan | Daughter | — | 30 | ~1910 |
| Nell Sullivan | Head | — | 75 | ~1865 |
Census Appearances
1920
Hamilton, Ohio
Daughter, age 10
Hamilton, Ohio · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Henrietta |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Daughter, age 20
Hamilton, Ohio · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Henrietta |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kentucky |
| Occupation | Packing |
| Industry | Can |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Daughter, age 30
Hamilton-County, Ohio · implied b. ~1910 — 3 household members
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Columbia Twp |
| 1935 Residence (County) | Hamilton |
| Occupation | Stenographer |
| Industry | Meat Packing mfg. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Helen Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Nell Sullivan (~0.92 confidence) and mother Rosina Sullivan (~0.92 confidence) and father Charles Sullivan (~0.92 confidence) and father Charles Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Nell Sullivan
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Rosina Sullivan
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Charles Sullivan
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Charles Sullivan
b. ~1882
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Sullivan
Daughter · 1940 · age 30 · b. ~1910 · Ohio
★ You are viewing this record
Sibling
Loretta Sullivan
Sibling · 1940 · age 37
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 — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03076-00678)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Stanton | 8 | son | — | Ohio |
| 2 | Grover Stanton | 5 | son | — | Ohio |
| 3 | Patricia Stanton | 3 | daughter | — | Ohio |
| 4 | Thomas Stanton | 2 | son | — | Ohio |
| 5 | Mike Wagner | 74 | Head | Tinner | Kentucky |
| 6 | Pearl Wagner | 24 | Wife | — | Kentucky |
| 7 | Nell Sullivan | 75 | Head | — | Ohio |
| 8 | Loretta Sullivan | 37 | daughter | Stenographer | Ohio |
| 9 | Helen Sullivan THIS PERSON | 30 | daughter | Stenographer | Ohio |
| 10 | Wm Lucas | 41 | Head | Contractor | Ohio |
| 11 | Joyce Lucas | 11 | daughter | — | Ohio |
| 12 | Walter Erfman | 39 | Head | Machinist | Indiana |
| 13 | Clara Erfman | 38 | Wife | — | Indiana |
| 14 | Loo Jean Erfman | 13 | daughter | — | Ohio |
| 15 | Walter C. Erfman | 9 | son | — | Ohio |
| 16 | Marjorie Erfman | 3 | daughter | — | Ohio |
| 17 | Louis O'Brien | 37 | Head | Machinist | Ohio |
| 18 | Elma O'Brien | 39 | Wife | — | Ohio |
| 19 | Robert O'Brien | 14 | son | — | Ohio |
| 20 | William O'Brien | 10 | son | — | Ohio |
| 21 | Oliver Olifman | 34 | Head | Electrician | Indiana |
| 22 | Irma Olifman | 34 | Wife | — | Ohio |
| 23 | Caroline Hick | 66 | Head | — | Germany |
| 24 | Christina Hick | 33 | daughter | Farmer | Ohio |
| 25 | John J. Hick | 29 | son | — | Ohio |
| 26 | Barrett Victor | 61 | Head | Laborer | Ohio |
| 27 | Estella Victor | 57 | Wife | — | Ohio |
| 28 | Louis Yelton | 37 | Head | Plasterer | Ohio |
| 29 | Dorothy Yelton | 26 | Wife | — | Ohio |
| 30 | Louis Jr. Yelton | 4 | son | — | Ohio |
| 31 | Barbara Ann Yelton | 2 | daughter | — | Ohio |
| 32 | John H. Rosen | 67 | Head | Motorman | Ohio |
| 33 | Emma Rosen | 64 | Wife | — | Germany |
| 34 | John Bockstiegel | 71 | Brother in law | — | Ohio |
| 35 | Robert Plumbner | 44 | Head | H. S. Research Asst | Ohio |
| 36 | Nina Plumbner | 36 | Wife | — | Ohio |
| 37 | Halford Plumbner | 15 | son | — | Ohio |
| 38 | Carl Plumbner | 13 | son | — | Ohio |
| 39 | Fred G. Dieckhaus | 55 | Head | Gardner | Ohio |
| 40 | Marie C. Dieckhaus | 59 | Wife | — | Ohio |
Pedigree Summary
Helen + 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)