RT
Robert Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pierce-County, Washington
Our Model Tree links this Robert Thompson across the 1920, 1930 and 1940 US Censuses in Pierce-County, Washington (XGBoost, ~Confirmed), with identified parents Vern & Nels — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Thompson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Lake Tapps Precinct |
| 1935 Residence (County) | Pierce |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Laborer |
| Township / Ward | Lake Tapps Precinct |
| Est. Birth Year | ~1913 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Nels Thompson | Head | — | 77 | ~1863 |
| George Thompson | Son | — | 25 | ~1915 |
| Robert Thompson | Son | — | 27 | ~1913 |
| Gertrude Thompson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Pierce, Washington
Son, age 6
Pierce, Washington · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Norway |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Pierce, Washington
Son, age 16
Pierce, Washington · implied b. ~1914 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Robert S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Pierce-County, Washington
Son, age 27
Pierce-County, Washington · implied b. ~1913 — 4 household members
| Surname | Thompson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Lake Tapps Precinct |
| 1935 Residence (County) | Pierce |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | Hs 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 Robert Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Vern Clark (~0.92 confidence) and father Nels Thompson (~0.92 confidence) and mother Gertrude Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Vern Clark
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Nels Thompson
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Gertrude Thompson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Thompson
Son · 1940 · age 27 · b. ~1913 · Washington
★ You are viewing this record
Sibling
George Thompson
Sibling · 1940 · age 25
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 — Pierce-County, Washington
Open full size
1940 US Federal Census — Pierce-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04355-01102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patricia J. Taylor | 9 | Daughter | — | Washington |
| 2 | Richard L. Taylor | 6 | Daughter | — | Washington |
| 3 | Jerome A. Taylor | 5 | Son | — | Washington |
| 4 | Nels Lund | 56 | Head | Wood Cutter | South Dakota |
| 5 | Helen Lund | 56 | Wife | — | Iowa |
| 6 | Bernard Lund | 29 | Son | Wood Cutter | Washington |
| 7 | Frank L. Harrison | 37 | Head | Laborer | Minnesota |
| 8 | Carrie A. Harrison | 32 | Wife | — | Washington |
| 9 | Fred A. Forney | 28 | Head | Wood Cutter | Pennsylvania |
| 10 | Ben R. Prime | 30 | Head | Wood Cutter | Nebraska |
| 11 | Ida O. Prime | 25 | Wife | — | Montana |
| 12 | Merlin L. Prime | 7 | Son | — | Nebraska |
| 13 | Gail Prime | 6 | Daughter | — | Nebraska |
| 14 | Shirley Prime | 0 | Daughter | — | Washington |
| 15 | Robert Summers | 18 | Brother in law | Wood Cutter | Montana |
| 16 | Howard Nolan | 40 | Head | Caterpillar Operator | Nebraska |
| 17 | Edith Nolan | 36 | Wife | — | South Dakota |
| 18 | Robert Nolan | 12 | Son | — | Idaho |
| 19 | Betty Nolan | 7 | Daughter | — | Idaho |
| 20 | Beverley Nolan | 6 | Daughter | — | Idaho |
| 21 | Chester L. Edwards | 36 | Head | Operator | Washington |
| 22 | Raymond Edwards | 26 | Brother | Laborer | Washington |
| 23 | Caroline A. Edwards | 82 | Mother | — | Germany |
| 24 | Nels Thompson | 77 | Head | Operator | Denmark |
| 25 | Gertrude Thompson | 52 | Wife | — | Norway |
| 26 | Robert J. Thompson THIS PERSON | 27 | Son | Laborer | Washington |
| 27 | George H. Thompson | 25 | Son | Laborer | Washington |
| 28 | Henry Gathen | 34 | Head | Wood Cutter | Iowa |
| 29 | George E. Vanderpool | 62 | Head | Laborer | Oregon |
| 30 | Eula Vanderpool | 53 | Wife | — | Louisiana |
| 31 | James D. Mcdonald | 60 | Head | Wood Cutter | Washington |
| 32 | John D. Smith | 38 | Head | Wood Cutter | North Dakota |
| 33 | John A. Bedder | 49 | Head | Cook | Washington |
| 34 | Hilda M. Bedder | 44 | Wife | Laborer | Washington |
| 35 | Ida Bedder | 55 | Sister | Laborer | Missouri |
| 36 | James H. Johnson | 54 | Head | Wood Cutter | Washington |
| 37 | George H. Case | 65 | Head | Operator | Nebraska |
| 38 | Alice Case | 63 | Wife | — | Idaho |
| 39 | Lawrence Case | 33 | Son | Laborer | Washington |
| 40 | William Case | 21 | Son | Laborer | Washington |
Related Census Records
Pedigree Summary
Robert + 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)