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Helen Hamilton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Columbia-County, Washington
Our Model Tree links this Helen Hamilton across the 1930 and 1940 US Censuses in Columbia-County, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Columbia-County, Washington |
| Surname | Hamilton |
| Given Name | Helen H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Mountain Precinct |
| 1935 Residence (County) | Columbia |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Mountain Precinct |
| Est. Birth Year | ~1926 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Jesse Hamilton | Son | — | 19 | ~1921 |
| Ida Hamilton | Spouse | — | 50 | ~1890 |
| Homer Hamilton | Head | — | 51 | ~1889 |
| Charles Hamilton | Son | — | 12 | ~1928 |
| Helen Hamilton | Daughter | — | 14 | ~1926 |
| John Hamilton | Son | — | 23 | ~1917 |
| Dorothy Hamilton | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Columbia, Washington
Daughter, age 5
Columbia, Washington · implied b. ~1925 — 9 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 | Washington |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Washington |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Columbia-County, Washington
Daughter, age 14
Columbia-County, Washington · implied b. ~1926 — 7 household members
| Surname | Hamilton |
| Given Name | Helen H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Mountain Precinct |
| 1935 Residence (County) | Columbia |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Hamilton
Daughter · 1940 · age 14 · b. ~1926 · Washington
★ You are viewing this record
Sibling
John Hamilton
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jesse Hamilton
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Hamilton
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Hamilton
Sibling · 1940 · age 12
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 — Columbia-County, Washington
Open full size
1940 US Federal Census — Columbia-County, Washington
Page Contents
32 people indexed on this census page (nara:1940:m-t0627-04336-00142)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lanala D. Eaton | 4 | Daughter | 0 | Oregon |
| 42 | James E. Sherman | 29 | Head | Farmer | Washington |
| 43 | Alta M. Sherman | 41 | Wife | — | Washington |
| 44 | Marjorie L. Sherman | 18 | Daughter | New Worker | Washington |
| 45 | Byron H. Sherman | 10 | Step Son | — | Washington |
| 46 | Barbara D. Sherman | 9 | Step Daughter | — | Washington |
| 47 | George Krause | 23 | Cousin-in-law | Laborer | Montana |
| 48 | Rose M. Krause | 18 | Step Daughter | — | Washington |
| 49 | Rachel M. Cochran | 48 | Head | Teacher | Washington |
| 50 | Homer J. Hamilton | 51 | Head | Farmer | Wisconsin |
| 51 | Ida L. Hamilton | 50 | Wife | — | Washington |
| 52 | John D. Hamilton | 23 | Son | Labourer | Washington |
| 53 | Jesse W. Hamilton | 19 | Son | — | Washington |
| 54 | Dorothy E. Hamilton | 17 | Daughter | — | Washington |
| 55 | Helen H. Hamilton THIS PERSON | 14 | Daughter | — | Washington |
| 56 | Charles L. Hamilton | 12 | Son | — | Washington |
| 57 | Earl L. Delaplain | 55 | Head | Farmer | Kansas |
| 58 | Margaret J. Delaplain | 57 | Wife | — | Kansas |
| 59 | Robert L. Delaplain | 28 | Son | Labourer | Kansas |
| 60 | James A. Mc Creey | 65 | Head | Farmer | Nebraska |
| 61 | Mary E. Mc Creey | 59 | Wife | — | Ohio |
| 62 | Bessie Mc Creey | 33 | Daughter | — | Washington |
| 63 | Frederick W. Stimpson | 12 | Head | — | England |
| 64 | James M. Cottrell | 67 | Head | Mechanic | Ohio |
| 65 | Benjamin Knight | 54 | Head | Laborer | Oregon |
| 66 | Lucile D. Bartell | 30 | Head | Teacher | Washington |
| 67 | Lindsay L. Magill | 54 | Head | Farmer | Washington |
| 68 | Stella E. Magill | 49 | Wife | — | Washington |
| 69 | Edward W. Parsons | 52 | Head | Farmer | Minnesota |
| 70 | Lena S. Parsons | 43 | Wife | — | Washington |
| 71 | Vireta E. Parsons | 18 | Daughter | Clerk | Washington |
| 72 | Eugene E. Parsons | 14 | Son | — | Washington |
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)