RA
Roy Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pierce-County, Washington
Our Model Tree links this Roy Anderson across the 1910, 1920, 1930 and 1940 US Censuses in Pierce-County, Washington (XGBoost, ~Confirmed), with identified parents Thema & John — first a head (b.~1904), then head of a 5-person household.
Age 36
b. ~1904
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Anderson |
| Given Name | Roy C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Additional Details | |
| Occupation | Machinist |
| Industry | Machine Shop |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 500 |
| Highest Grade | C 1 |
| 1935 Residence | Same Place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Machinist |
| Township / Ward | Tacoma City |
| Est. Birth Year | ~1904 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Roy Anderson | Head | — | 36 | ~1904 |
| Richard Anderson | Son | — | 11 | ~1929 |
| Jack Anderson | Son | — | 14 | ~1926 |
| Gordon Anderson | Son | — | 9 | ~1931 |
| Violet Anderson | Spouse | — | 32 | ~1908 |
Census Appearances
1910
King, Washington
Son, age 5
King, Washington · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Roy D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Swed. Swedish |
| Mother's Birthplace | Swed. Swedish |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Pierce, Washington
Son, age 16
Pierce, Washington · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Roy C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Pierce, Washington
Head, age 26
Pierce, Washington · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Roy C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 21 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Machinist |
| Industry | Lumber mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | R |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Pierce-County, Washington
Head, age 36
Pierce-County, Washington · implied b. ~1904 — 5 household members
| Surname | Anderson |
| Given Name | Roy C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Occupation | Machinist |
| Industry | Machine Shop |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 500 |
| Highest Grade | C 1 |
| 1935 Residence | Same Place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Roy Anderson across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: mother Thema Anderson (~0.92 confidence) and father John Anderson (~0.92 confidence) and father Arthur Anderson (~0.92 confidence) and mother Vendla Anderson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Thema Anderson
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
John Anderson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Arthur Anderson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Vendla Anderson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Anderson
Head · 1940 · age 36 · b. ~1904 · 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 — Pierce-County, Washington
Open full size
1940 US Federal Census — Pierce-County, Washington
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04389-00515)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles R Wallis | 39 | Head | Laborer | Washington |
| 2 | Mildred F Wallis | 34 | Wife | — | Oklahoma |
| 3 | Barbara M Wallis | 15 | Daughter | — | Washington |
| 5 | Pauline M Cassinet | 49 | Head | — | Washington |
| 6 | Ray J Darling | 44 | Head | Chipper Man | Iowa |
| 7 | Faye C Darling | 44 | Wife | — | Minnesota |
| 8 | Charles R Darling | 15 | Son | — | Washington |
| 9 | Marilyn Darling | 14 | Daughter | — | Washington |
| 10 | Leonard A Olsen | 36 | Son-in-law | Stenographer | Minnesota |
| 11 | Minnie E Green | 56 | Head | — | New York |
| 12 | Walter S Huhn | 48 | Head | Laborer | Washington |
| 13 | Rosella Huhn | 40 | Wife | — | Illinois |
| 14 | Gordon M Bristinback | 36 | Head | Body & Fender Man | Wisconsin |
| 15 | Dorothy A Bristinback | 35 | Wife | — | Canada |
| 16 | Eugene E Bristinback | 16 | Son | — | Washington |
| 17 | Richard G Bristinback | 5 | Son | — | Washington |
| 18 | Edwin G Snyder | 47 | Head | Attendant | Missouri |
| 19 | Evelyn M Mattison | 33 | Housekeeper | House Work | Washington |
| 20 | Ralph L Mattison | 11 | Housekeeper's Son | — | Washington |
| 21 | James Donald | 59 | Head | Junior Clerk | Scotland |
| 22 | Georgina M Donald | 69 | Sister | — | Scotland |
| 23 | Mary Cologrossi | 49 | Head | — | Turkey |
| 24 | Kay G Cologrossi | 22 | Daughter | Pastry Wrapper | Washington |
| 25 | Athena Cologrossi | 18 | Daughter | Pastry Wrapper | Washington |
| 26 | James V Wilkins | 32 | Head | Warehouse Man | Idaho |
| 27 | Bertha J Wilkins | 29 | Wife | — | Washington |
| 28 | James E Wilkins | 9 | Son | — | Washington |
| 29 | Irene J Wilkins | 4 | Son | — | Washington |
| 30 | John F Brecht | 30 | Head | Boom-Man | Poland |
| 31 | Evelyn E Brecht | 25 | Wife | — | Oregon |
| 32 | Gloria J Brecht | 7 | Daughter | — | Washington |
| 33 | Arlene L Brecht | 3 | Daughter | — | Washington |
| 34 | Rosie Gaines | 67 | Head | — | Russia |
| 35 | Roy C Anderson THIS PERSON | 36 | Head | Machinist | Wisconsin |
| 36 | Violet C Anderson | 32 | Wife | — | Nevada |
| 37 | Jack C Anderson | 14 | Son | — | Washington |
| 38 | Richard R Anderson | 11 | Son | — | Washington |
| 39 | Gordon L Anderson | 9 | Son | — | Washington |
| 40 | Virgil C Pratt | 62 | Head | — | Iowa |
Pedigree Summary
Roy
Gen 1 · 4 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)