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David Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this David Lewis across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents David & David — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Lewis |
| Given Name | David A. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | R |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Airplane Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 650 |
| Highest Grade | H-4 |
| 1935 Residence | Washington |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Mechanic |
| Township / Ward | Gilman Precinct |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| David Lewis | Head | — | 57 | ~1883 |
| Joseph Lewis | Son | — | 16 | ~1924 |
| James Lewis | Son | — | 12 | ~1928 |
| David Lewis | Son | — | 24 | ~1916 |
| Margaret Lewis | Spouse | — | 49 | ~1891 |
Census Appearances
1920
King, Washington
Son, age 3
King, Washington · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 14
King, Washington · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 24
King-County, Washington · implied b. ~1916 — 5 household members
| Surname | Lewis |
| Given Name | David A. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | R |
| 1935 Residence (County) | King |
| Occupation | Mechanic |
| Industry | Airplane Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 650 |
| Highest Grade | H-4 |
| 1935 Residence | Washington |
| 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 David Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Lewis (~0.92 confidence) and father David Lewis (~0.92 confidence) and mother Margaret Lewis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Lewis
b. ~1883
Source father
● Household
· direct · ~0.92
Father
David Lewis
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Margaret Lewis
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Lewis
Son · 1940 · age 24 · b. ~1916 · Washington
★ You are viewing this record
Sibling
James Lewis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Lewis
Sibling · 1940 · age 16
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
40 people indexed on this census page (nara:1940:m-t0627-04344-00423)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patricia Lowry | 10 | daughter | — | Washington |
| 2 | Eddie Ernst | 31 | head | Caterpillar Operator | Washington |
| 3 | Serece Ernst | 33 | wife | — | Illinois |
| 4 | William Martin | 12 | step-son | — | Montana |
| 5 | William J. Lewis | 47 | head | Gravel Bunkerman | Washington |
| 6 | Lena Z. Lewis | 50 | wife | Operator | Iowa |
| 7 | John Mcquade | 36 | head | Truck Driver | Washington |
| 8 | Mary Mcquade | 32 | wife | — | Washington |
| 9 | Annette Mcquade | 13 | daughter | — | Washington |
| 10 | Marlene Mcquade | 5 | daughter | — | Washington |
| 11 | J. G. Finney | 38 | head | Mechanic | Washington |
| 12 | Cordelia Finney | 37 | wife | — | North Carolina |
| 13 | Don Finney | 16 | son | Clerk | Washington |
| 14 | Jack Finney | 14 | son | — | Washington |
| 15 | Kenneth Finney | 9 | son | — | Washington |
| 16 | James A. Deliver | 38 | head | Civil Engineer | Pennsylvania |
| 17 | Kathryn Deliver | 31 | wife | — | Washington |
| 18 | Paul Ogren | 29 | head | Draftsman | Montana |
| 19 | Pauline Ogren | 25 | wife | — | Oregon |
| 20 | Donna Jean Ogren | 4 | daughter | — | Washington |
| 21 | Janet Sue Ogren | 1 | daughter | — | Washington |
| 22 | Edward F. Wood | 26 | head | Shipping Clerk | Illinois |
| 23 | Harriet Wood | 22 | wife | — | Washington |
| 24 | Joanne Wood | 1 | daughter | — | Washington |
| 25 | F. H. Wood | 52 | head | Sales Manager | Iowa |
| 26 | Hazel Wood | 47 | wife | — | California |
| 27 | Wilbur Wood | 28 | son | New Worker | Illinois |
| 28 | Charlene Wood | 22 | daughter | Switchboard Operator | Illinois |
| 29 | Nancy Cottingham | 81 | mother | — | Illinois |
| 30 | David A. Lewis | 57 | head | Railway Mail Clerk | Washington |
| 31 | Margaret Lewis | 49 | wife | — | Washington |
| 32 | David A. Jr. Lewis THIS PERSON | 24 | son | Mechanic | Washington |
| 33 | Joseph Lewis | 16 | son | Selling | Washington |
| 34 | James Lewis | 12 | son | — | Washington |
| 35 | Oliver Hansen | 24 | head | Carpenter | Washington |
| 36 | Mary Hansen | 18 | wife | — | Washington |
| 37 | Herman V. Heller | 28 | head | Stationary Engineer | Washington |
| 38 | Louise Heller | 25 | wife | — | Washington |
| 39 | Leroy E. Daniels | 37 | head | Truck Driver | Washington |
| 40 | Bernice L. Daniels | 41 | wife | Desk Clerk | Minnesota |
Related Census Records
Pedigree Summary
David + 2 siblings
Gen 1 · 3 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)