GC
George Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this George Clark across the 1910, 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents George & Lulu — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Clark |
| Given Name | George S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | R |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | PW |
| Hours Worked | 14 |
| Income (1939) | 765 |
| Highest Grade | H-4 |
| 1935 Residence | Washington |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Miner |
| Township / Ward | Hillman Precinct |
| Est. Birth Year | ~1905 |
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 George | Age | Birth yr |
|---|---|---|---|---|
| George Clark | Head | — | 35 | ~1905 |
| Lulu Clark | Other | — | 58 | ~1882 |
| George Clark | Son | — | 2 | ~1938 |
| Ethel Clark | Spouse | — | 32 | ~1908 |
Census Appearances
1910
King, Washington
Son, age 5
King, Washington · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | George L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Colorado |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1920
King, Washington
Son, age 15
King, Washington · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | George Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Colorado |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 25
King, Washington · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | George C. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Colorado |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Head, age 35
King-County, Washington · implied b. ~1905 — 4 household members
| Surname | Clark |
| Given Name | George S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | R |
| 1935 Residence (County) | King |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | PW |
| Hours Worked | 14 |
| Income (1939) | 765 |
| 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 George Clark across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Clark (~0.92 confidence) and mother Lulu Clark (~0.92 confidence) and mother Lillie Clark (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Clark
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Lulu Clark
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Lillie Clark
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Clark
Head · 1940 · age 35 · b. ~1905 · Washington
★ You are viewing this record
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-t0627-04344-00425)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lodie M. Lower | 59 | Wife | — | Illinois |
| 2 | Charles G. Peterson | 77 | Head | — | At sea |
| 3 | William Lewis | 67 | Head | — | Pennsylvania |
| 4 | Alson A. Booth | None | Head | — | — |
| 5 | Ethel M. Booth | None | Wife | — | — |
| 6 | Frances Walker | 69 | Head | — | Sweden |
| 7 | Virgil Oldom | 27 | Head | Laborer | Arkansas |
| 8 | Vera Oldom | 27 | Wife | — | Finland |
| 9 | James Oldom | 6 | Son | — | Washington |
| 10 | Bertora Madsen | 49 | Head | — | Wisconsin |
| 11 | Edwin Mcguire | 41 | Head | Truck Driver | Minnesota |
| 12 | Ruby Mcguire | 36 | Wife | — | Washington |
| 13 | Iver W. Erikson | 67 | Head | — | Norway |
| 14 | Odina Erikson | 63 | Wife | — | Norway |
| 15 | Thomas Erikson | 73 | Brother | — | Norway |
| 16 | Armand L. Nelson | 34 | Head | Bulldozer Operator | North Dakota |
| 17 | Axel J. Carlson | 48 | Head | Owner Operator | Sweden |
| 18 | Selma K. Carlson | 47 | Wife | Assistant | Sweden |
| 19 | E. Zintz | 22 | Son | Mechanic | Washington |
| 20 | Winifred I. Zintz | 20 | Daughter-in-law | — | Kansas |
| 21 | William Bluin | 25 | Lodger | — | Canada-French |
| 22 | George S. Clark THIS PERSON | 35 | Head | Miner | Washington |
| 23 | Ethel Clark | 32 | Wife | Music Teacher | Oregon |
| 24 | George S. Jr. Clark | 2 | Son | — | Washington |
| 25 | Lulu Clark | 58 | Mother | Housekeeper | Colorado |
| 26 | Ernest Quist | 50 | Head | Farmer | Finland |
| 27 | Erick Oleon | 43 | Head | Logger | Sweden |
| 28 | Anna Oleon | 42 | Wife | — | Sweden |
| 29 | Iver Oleon | 17 | Son | — | Sweden |
| 30 | Kenneth Oleon | 15 | Son | — | Washington |
| 31 | Arner Borman | 24 | Head | Mechanist | Washington |
| 32 | Ruth Borman | 18 | Wife | — | Sweden |
| 33 | Wallace Daniell | 47 | Head | Laborer | Washington |
| 34 | Ethel Daniell | 28 | Wife | — | New York |
| 35 | Kenneth Morten | 33 | Head | Mechanic'S Helper | Washington |
| 36 | Russell Whaley | 42 | Partner | Mechanic | Washington |
| 37 | A. J. Brodenburg | 27 | Head | Clerk | Washington |
| 38 | Doris Brodenburg | 23 | Wife | — | North Dakota |
| 39 | A. J. Petersen | 45 | Head | Owner Operator | Iowa |
| 40 | Julia Petersen | 44 | Wife | — | Iowa |
Pedigree Summary
George
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)