FT
Fred Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Fred Thompson across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Ralph & Sarah — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Thompson |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle city |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | filling clerk |
| Industry | wholesale grocery |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 240 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Filling Clerk |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1919 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Jennie Juergens | Daughter | — | 32 | ~1908 |
| Sarah Thompson | Head | — | 63 | ~1877 |
| Dolores Juergens | Other | — | 9 | ~1931 |
| Charles Juergens | Other | — | 31 | ~1909 |
| Charles Juergens | Other | — | 4 | ~1936 |
| Alice Deer | Other | — | 27 | ~1913 |
| Fred Thompson | Son | — | 21 | ~1919 |
Census Appearances
1920
King, Washington
Son, age 1
King, Washington · implied b. ~1919 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Frederick |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Mother Tongue | English |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 11
King, Washington · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Frederick |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 21
King-County, Washington · implied b. ~1919 — 7 household members
| Surname | Thompson |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle city |
| 1935 Residence (County) | King |
| Occupation | filling clerk |
| Industry | wholesale grocery |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 240 |
| Highest Grade | C 3 |
| 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 Fred Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ralph Thompson (~0.92 confidence) and mother Sarah Thompson (~0.92 confidence) and mother Sarah Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ralph Thompson
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Sarah Thompson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Sarah Thompson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Thompson
Son · 1940 · age 21 · b. ~1919 · Washington
★ You are viewing this record
Sibling
Jennie Juergens
Sibling · 1940 · age 32
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
37 people indexed on this census page (nara:1940:m-t0627-04376-00631)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William H De Pango | 15 | Son | — | Washington |
| 42 | George F Hanna | 67 | Head | Laborer | Oregon |
| 43 | Merritt A Tuthill | 52 | Head | Mechanic | California |
| 44 | Jonathan M Tuthill | 46 | Wife | — | Washington |
| 45 | Mary A Tuthill | 21 | Daughter | Housework | Washington |
| 48 | Charles A Chapel | 55 | Head | Painter | Idaho |
| 49 | Zell Chapel | 42 | Wife | — | Illinois |
| 50 | Curtis A Chapel | 19 | Son | Assistant Utility Maker | Washington |
| 51 | Virginia L Chapel | 18 | Daughter | Waitress | Washington |
| 52 | Clate R Chapel | 33 | Brother | Paper & Pulp Mill Worker | Washington |
| 53 | Sarah Jane Thompson | 63 | Head | — | Canada |
| 54 | Fred Thompson THIS PERSON | 21 | Son | Filling Clerk | Washington |
| 55 | Charles Juergens | 31 | Son-in-law | Ship Fitter | Ohio |
| 56 | Jennie Juergens | 32 | Daughter | — | Massachusetts |
| 57 | Dolores Mae Juergens | 9 | Granddaughter | — | Washington |
| 58 | Charles Juergens | 4 | Grandson | — | Washington |
| 59 | Alice Deer | 27 | Lodger | Filling Clerk | Washington |
| 60 | Benjamin D Nelson | 51 | Head | Salesman | Minnesota |
| 61 | Georgia L Nelson | 50 | Wife | — | Missouri |
| 62 | Dorabel Nelson | 15 | Daughter | — | Minnesota |
| 63 | Daniel E Crandall | 48 | Head | Carpet Layer | England |
| 64 | Elizabeth M Crandall | None | Wife | — | Michigan |
| 65 | George A Morrison | 60 | Head | Mailing Clerk | Scotland |
| 66 | Jessie M Morrison | 56 | Wife | — | Scotland |
| 67 | Catherine R Morrison | 25 | Daughter | Saleswoman | Washington |
| 68 | Ted C Roll | 36 | Head | Laborer | Washington |
| 69 | Sofia Roll | 33 | Wife | — | Washington |
| 70 | Joan A Roll | 17 | Daughter | — | Washington |
| 71 | Irene A Roll | 15 | Daughter | — | Washington |
| 72 | Vera R Roll | 8 | Daughter | — | Washington |
| 73 | Lela E Roll | 4 | Daughter | — | Washington |
| 74 | Amelia E Lloyd | 64 | Head | Janitress | Sweden |
| 75 | Lavere S Lloyd | 35 | Son | — | Oregon |
| 76 | George H Eifrig | 54 | Head | Superintendent | Michigan |
| 77 | Annie E Eifrig | 49 | Wife | — | Washington |
| 78 | George R Eifrig | 16 | Son | Paper Boy | Washington |
| 79 | Darlene B Eifrig | 13 | Daughter | — | Washington |
Related Census Records
Pedigree Summary
Fred + 1 sibling
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)