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Helen Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Helen Hamilton across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a daughter (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Hamilton |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | servant |
| Industry | private family |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 520 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Servant |
| Township / Ward | Cincinnati |
| Est. Birth Year | ~1915 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Mabel Hamilton | Spouse | — | 52 | ~1888 |
| Helen Hamilton | Daughter | — | 25 | ~1915 |
| William Hamilton | Son | — | 22 | ~1918 |
| William Hamilton | Head | — | 53 | ~1887 |
| Carl Hamilton | Son | — | 19 | ~1921 |
Census Appearances
1920
Hamilton, Ohio
Daughter, age 5
Hamilton, Ohio · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Daughter, age 15
Hamilton, Ohio · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Daughter, age 25
Hamilton-County, Ohio · implied b. ~1915 — 5 household members
| Surname | Hamilton |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Occupation | servant |
| Industry | private family |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 520 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Hamilton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Hamilton (~0.92 confidence) and father Charles Hamilton (~0.92 confidence) and father William Hamilton (~0.92 confidence) and mother Mabel Hamilton (~0.92 confidence) and mother Mable Hamilton (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Hamilton
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Charles Hamilton
b. ~1887
Source father
● Household
· direct · ~0.92
Father
William Hamilton
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Mabel Hamilton
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Mable Hamilton
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Hamilton
Daughter · 1940 · age 25 · b. ~1915 · Ohio
★ You are viewing this record
Sibling
Carl Hamilton
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Hamilton
Sibling · 1940 · age 22
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-t0627-03187-00642)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John W. Russo | 27 | Head | Machinist | Ohio |
| 2 | Kathryn @ Russo | 22 | Wife | — | Ohio |
| 3 | Harold N. Callahan | 24 | Head | Clerk | Ohio |
| 4 | Jessie E. Callahan | 54 | Mother | — | Kentucky |
| 5 | Omer H. Tedrick | 30 | Head | Stenographer | Ohio |
| 6 | Lucy M. Tedrick | 31 | Wife | Stenographer | Kentucky |
| 7 | Margaret Ann Tedrick | 3 | Daughter | — | Ohio |
| 8 | Lucian Lynn | 40 | Head | Attendant | Kentucky |
| 9 | Fannie W. @ Lynn | 40 | Wife | Beauty Operator | Indiana |
| 10 | Lucille E. Hardy | 20 | Lodger | Stenographer | Indiana |
| 11 | William H. Hamilton | 53 | Head | Janitor | Ohio |
| 12 | Mabel S. @ Hamilton | 52 | Wife | — | Ohio |
| 13 | Helen M. Hamilton THIS PERSON | 25 | Daughter | Servant | Ohio |
| 14 | William H. Hamilton | 22 | Son | Advertising | Ohio |
| 15 | Carl Eugene Hamilton | 19 | Son | Jewelry Maker | Ohio |
| 16 | Abram F. Delaney | 40 | Head | Carpenter | Ohio |
| 17 | Elsie M. @ Delaney | 36 | Wife | — | Ohio |
| 18 | Paul S. Delaney | 8 | Son | — | Ohio |
| 19 | Pearl S. @ Delaney | 68 | Head | Seamstress | Ohio |
| 20 | Edward W. Sawyer | 78 | Head | — | Maine |
| 21 | Caroline B. Sawyer | 81 | Wife | — | New York |
| 22 | Mary B. Ferris | 83 | Sister-in-law | — | New York |
| 23 | Nellie B. Williamson | 75 | Sister-in-law | — | New York |
| 24 | Elbert @ Gilpen | 61 | Head | — | Ohio |
| 25 | Claudine Edwards | 34 | Lodger | Servant | Ohio |
| 26 | Anna Jennings | 57 | Head | Button Setter | Kentucky |
| 27 | Fred F. Stoll | 34 | Head | Pharmacist | Indiana |
| 28 | Helen M. @ Stoll | 30 | Wife | — | New York |
| 29 | Carol Jr. Stoll | 8 | Daughter | — | Ohio |
| 30 | Michael Jones | 75 | Father-in-law | — | Ohio |
| 31 | Alma M. Jones | 63 | Mother-in-law | — | Ohio |
| 32 | William A. Hover | 21 | Head | Yard Clerk | Alabama |
| 33 | Pearl May @ Hover | 62 | Mother | Sewing At Home | Illinois |
| 34 | Henry P. @ Koenig | 48 | Head | Fireman | Ohio |
| 35 | Florence Koenig | 46 | Wife | — | Ohio |
| 36 | Ralph Koenig | 10 | Son | — | Ohio |
| 37 | T. Donald Koenig | 7 | Son | — | Ohio |
| 38 | Henry Koenig | 80 | Father | — | Germany |
| 39 | Harold @ Condon | 34 | Head | Bellman | Ohio |
| 40 | Clara @ Heleber | 70 | Head | Dressmaker | Ohio |
Pedigree Summary
Helen + 2 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)