KW
Katherine Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Katherine Williams across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Estelle — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Williams |
| Given Name | Katherine E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | clerk |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 266 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Estelle Williams | Head | — | 44 | ~1896 |
| Bob Williams | Son | — | 22 | ~1918 |
| Katherine Williams | Daughter | — | 23 | ~1917 |
| Ruth Williams | Daughter | — | 18 | ~1922 |
Census Appearances
1920
King, Washington
Other, age 3
King, Washington · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Katherine E. |
| Relationship to Head | Grand Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Tennessee |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
King, Washington
Other, age 13
King, Washington · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Katherine E. |
| Relationship to Head | Granddaughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
King-County, Washington
Daughter, age 23
King-County, Washington · implied b. ~1917 — 4 household members
| Surname | Williams |
| Given Name | Katherine E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | clerk |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 266 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Katherine Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Estelle Williams (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Estelle Williams
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Katherine Williams
Daughter · 1940 · age 23 · b. ~1917 · Washington
★ You are viewing this record
Sibling
Ruth Williams
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bob Williams
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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04379-01012)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leona A Smith | 43 | Head | Dressmaker | Canada-English |
| 42 | Billy Smith | 14 | Son | — | Washington |
| 43 | Juana C Smith | 10 | Daughter | — | California |
| 44 | Le Roy B Sargent | 22 | Head | Waiter | Washington |
| 45 | Thomas E Purvis | 30 | Head | Mechanic | Washington |
| 46 | Eleanor P Purvis | 25 | Wife | — | Montana |
| 47 | Thomas J Purvis | 3 | Son | — | Washington |
| 48 | Paul H Norton | 47 | Head | Magazine | Illinois |
| 49 | Ethel M Norton | 47 | Wife | — | Illinois |
| 50 | Leslie S Norton | 20 | Son | Kitchen Work | Washington |
| 51 | Paul L Norton | 15 | Son | — | Illinois |
| 52 | Daniel C Norton | 10 | Son | — | Washington |
| 53 | Estelle M Williams | 44 | Head | — | Nebraska |
| 54 | Katherine E Williams THIS PERSON | 23 | Daughter | Clerk | California |
| 55 | Bob K Williams | 22 | Son | Laborer | Washington |
| 56 | Ruth P Williams | 18 | Daughter | — | Idaho |
| 57 | George W Snow | 48 | Head | — | Massachusetts |
| 58 | Karl H Gundersen | 39 | Head | Fisherman | Norway |
| 59 | William V Jasper | 43 | Head | Cashier | Tennessee |
| 60 | Charles F Casper | 34 | Head | Letter Carrier | Washington |
| 61 | Wanneni Casper | 27 | Wife | — | Washington |
| 62 | Gilbert G Kjelden | 55 | Head | Laborer | No Dakota |
| 63 | Lena C Kjelden | 55 | Wife | — | No Dakota |
| 64 | Lawrence M Kjelden | 22 | Son | Laborer | No Dakota |
| 65 | Herbert Kjelden | 17 | Son | — | No Dakota |
| 66 | Irene M Kjelden | 21 | Daughter | — | No Dakota |
| 67 | Val Carter | 21 | Lodger | — | Oregon |
| 68 | James B Henson | 73 | Head | Painting | Michigan |
| 69 | Mary B Henson | 78 | Wife | — | Minnesota |
| 70 | Maurice S Henson | 35 | Son | New Worker | Minnesota |
| 71 | Theron H Renegade | 40 | Lodger | Laborer | Minnesota |
| 72 | Emma Renegade | 64 | mother | — | Wisconsin |
| 73 | Perry C Merriam | 67 | Head | — | Illinois |
| 74 | Elsa Swanson | 64 | Head | Caretaker | Sweden |
| 75 | Peter S Johnson | 50 | Lodger | Sailor | Sweden |
| 76 | Jack H Larson | 63 | Lodger | — | Sweden |
| 77 | Albert Carlson | 34 | Lodger | — | Sweden |
| 78 | Arthur Riley | 60 | Lodger | Carpenter | New York |
| 79 | Arthur B Wahlund | 51 | Lodger | Painter | Sweden |
Pedigree Summary
Katherine + 2 siblings
Gen 1 · 1 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)