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Jack Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Jack Anderson across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Charles & Ernest — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Anderson |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1918 |
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 Jack | Age | Birth yr |
|---|---|---|---|---|
| Ernest Anderson | Son | — | 25 | ~1915 |
| Ernest Anderson | Head | — | 56 | ~1884 |
| Jack Anderson | Son | — | 22 | ~1918 |
| Lillie Anderson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
King, Washington
Son, age 2
King, Washington · implied b. ~1918
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Anderson |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 12
King, Washington · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 22
King-County, Washington · implied b. ~1918 — 4 household members
| Surname | Anderson |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Class of Worker | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| 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 Jack Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Anderson (~0.92 confidence) and father Ernest Anderson (~0.92 confidence) and mother Lillie Anderson (~0.92 confidence) and mother Rail Anderson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Anderson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Ernest Anderson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Lillie Anderson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Rail Anderson
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jack Anderson
Son · 1940 · age 22 · b. ~1918 · Washington
★ You are viewing this record
Sibling
Ernest Anderson
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 — 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-t0627-04381-00293)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joan Hansen | 2 | Granddaughter | — | Washington |
| 42 | Gunnar B. Nelson | 55 | Head | Foreman | Sweden |
| 43 | Bertha Nelson | 55 | Wife | — | Sweden |
| 44 | Bertil Nelson | 29 | Son | — | Washington |
| 45 | Myrtle Nelson | 21 | Daughter | — | Washington |
| 46 | Ernest Anderson | 56 | Head | Upholsterer | Sweden |
| 47 | Lillie O. Anderson | 50 | Wife | — | Canada-English |
| 48 | Ernest G. (Abs) Anderson | 25 | Son | English Teacher | Washington |
| 49 | Jack Anderson THIS PERSON | 22 | Son | — | Washington |
| 50 | Chester R. Douglas | 57 | Head | — | Iowa |
| 51 | Edith M. Douglas | 50 | Wife | — | Canada-French |
| 52 | William C. Douglas | 25 | Son | Postal Clerk | Washington |
| 53 | Robert J. Douglas | 20 | Son | Truck Driver | Washington |
| 54 | Jay Anderson | 81 | Father-in-law | Salesman | Canada-English |
| 55 | H. Claude Babbage | 45 | Head | Warehouseman | England |
| 56 | Elmira O. Babbage | 39 | Wife | — | Illinois |
| 57 | Doris Babbage | 11 | Daughter | — | Illinois |
| 58 | Ryder Tingstad | 37 | Head | Machinist | Norway |
| 59 | Lillian Tingstad | 30 | Wife | — | Michigan |
| 60 | Jack Philip Tingstad | 6 | Son | — | Washington |
| 61 | Gary Tingstad | 2 | Son | — | Washington |
| 62 | John E. Hanning | 56 | Head | — | Missouri |
| 63 | Irene L. Hanning | 38 | Wife | Seamstress | No. Dakota |
| 64 | John O. Jr. Hanning | 15 | Son | — | Washington |
| 65 | Jerome M. Hanning | 13 | Son | — | Washington |
| 66 | John C. Engel | 38 | Head | Machinist | Washington |
| 67 | Blanche C. Engel | 36 | Wife | — | Indiana |
| 68 | John C. Jr. Engel | 14 | Son | — | Washington |
| 69 | Russel Engel | 11 | Son | — | Washington |
| 70 | Beverley Engel | 5 | Daughter | — | Washington |
| 71 | Charles Peterson | 53 | Head | Laborer | Illinois |
| 72 | Edna Peterson | 21 | Wife | — | Washington |
| 73 | Caroline Peterson | 2 | Daughter | — | Washington |
| 74 | William Peterson | 54 | Father | Painter | Norway |
| 75 | Anna Peterson | 41 | Mother | — | Minnesota |
| 76 | Merrill Peterson | 21 | Brother | Helper | Minnesota |
| 77 | Lorraine Peterson | 18 | Sister | New Worker | Minnesota |
| 78 | Frank Reynolds | 40 | Head | Retired Navy | Massachusetts |
| 79 | Sigrid Reynolds | 36 | Wife | — | Massachusetts |
| 80 | Judith Ann Reynolds | 1 | Daughter | — | Washington |
Related Census Records
Pedigree Summary
Jack + 1 sibling
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)