RS
Ruth Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Ruth Smith across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Richard & Richard — first a daughter (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Smith |
| Given Name | Ruth D |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle, City |
| 1935 Residence (County) | King |
| Additional Details | |
| Hours Worked | 40 |
| Income (1939) | 255 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1916 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Smith | Daughter | — | 24 | ~1916 |
| Richard Smith | Head | — | 51 | ~1889 |
| Gregory Smith | Son | — | 21 | ~1919 |
Census Appearances
1920
King, Washington
Daughter, age 4
King, Washington · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Daughter, age 14
King, Washington · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ruth D |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Daughter, age 24
King-County, Washington · implied b. ~1916 — 3 household members
| Surname | Smith |
| Given Name | Ruth D |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle, City |
| 1935 Residence (County) | King |
| Hours Worked | 40 |
| Income (1939) | 255 |
| Highest Grade | H-4 |
| 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 Ruth Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Richard Smith (~0.92 confidence) and father Richard Smith (~0.92 confidence) and father Richard Smith (~0.92 confidence) and mother Edna Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Richard Smith
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Richard Smith
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Richard Smith
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Edna Smith
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Smith
Daughter · 1940 · age 24 · b. ~1916 · Washington
★ You are viewing this record
Sibling
Gregory Smith
Sibling · 1940 · age 21
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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
6 people indexed on this census page (nara:1940:m-t0627-04376-00399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Richard C Smith | 51 | Head | Caretaker | Illinois |
| 42 | Ruth D Smith THIS PERSON | 24 | Daughter | — | Washington |
| 43 | Gregory Smith | 21 | Son | Laborer | Washington |
| 44 | George H Leis | 63 | Head | Manager Of Lumber Yard | Nebraska |
| 45 | Cora Leis | 57 | Wife | — | Nebraska |
| 46 | Margarette Parker | 51 | Daughter | Saleslady | Nebraska |
Pedigree Summary
Ruth + 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)