RC
Ralph Clark — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Grays Harbor, Washington
Our Model Tree links this Ralph Clark across the 1920 and 1930 US Censuses in Grays Harbor, Washington (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 11-person household.
Age 15
b. ~1915
Male
Son
Born: Washington
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Grays Harbor, Washington |
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Kansas |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Satsop Precinct |
| 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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| James Clark | Head | — | 55 | ~1875 |
| Erwin Clark | Son | — | 16 | ~1914 |
| Grace Clark | Daughter | — | 11 | ~1919 |
| Charles Matson | Other | — | 19 | ~1911 |
| William Moore | Son | — | 21 | ~1909 |
| Ralph Clark | Son | — | 15 | ~1915 |
| Dorothy Clark | Daughter | — | 19 | ~1911 |
| Emma Clark | Spouse | — | 46 | ~1884 |
| Hamil Pomreuk | Son | — | 19 | ~1911 |
| Lelifford Harris | Son | — | 4 | ~1926 |
| Louise Clark | Daughter | — | 9 | ~1921 |
Census Appearances
1920
Grays Harbor, …
Son, age 4
Grays Harbor, Washington · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ralph L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Illinois |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Grays Harbor, …
Son, age 15
Grays Harbor, Washington · implied b. ~1915 — 11 household members
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| 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 Ralph Clark across 2 US Census years (1920 and 1930) in Grays Harbor, Washington, using XGBoost record linkage.
Show:
This person
Anchor record
Ralph Clark
Son · 1930 · age 15 · b. ~1915 · Washington
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Sibling
Hamil Pomreuk
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lelifford Harris
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Clark
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Moore
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Clark
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Erwin Clark
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Clark
Sibling · 1930 · age 19
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
1930 US Federal Census — Grays Harbor, Washington
Open full size
1930 US Federal Census — Grays Harbor, Washington
Page Contents
11 people indexed on this census page (ia:1930:15thcensus2489unitrs:0031)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Clark | 55 | Head | Farmer | Wisconsin |
| 2 | Emma Clark | 46 | Wife | — | Kansas |
| 3 | Dorothy Clark | 19 | Daughter | — | Washington |
| 4 | Erwin Clark | 16 | Son | — | Washington |
| 5 | Ralph Clark THIS PERSON | 15 | Son | — | Washington |
| 6 | Grace Clark | 11 | Daughter | — | Washington |
| 7 | Louise Clark | 9 | Daughter | — | Washington |
| 8 | Lelifford Harris | 4 | Son | — | Washington |
| 9 | Hamil H Pomreuk | 19 | Son | — | Oregon |
| 10 | William Moore | 21 | Son | Laborer | Oregon |
| 11 | Charles Matson | 19 | Lodger | Chokerman | Washington |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)