FP
Frank Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Snohomish-County, Washington
Our Model Tree links this Frank Peterson across the 1920, 1930 and 1940 US Censuses in Snohomish-County, Washington (XGBoost, ~Confirmed), with identified parents S & Elsie — 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 | Snohomish-County, Washington |
| Surname | Peterson |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Marysville Town |
| 1935 Residence (County) | Snohomish |
| Additional Details | |
| Occupation | Car Loader |
| Industry | Shingle Mill |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 88 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Car Loader |
| Township / Ward | Marysville Town |
| 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 Frank | Age | Birth yr |
|---|---|---|---|---|
| S Peterson | Head | — | 56 | ~1884 |
| Richard Peterson | Son | — | 11 | ~1929 |
| Frank Peterson | Son | — | 22 | ~1918 |
| Elsie Peterson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Snohomish, Washington
Son, age 2
Snohomish, Washington · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Frank |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Snohomish, Washington
Son, age 12
Snohomish, Washington · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Frank L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Snohomish-County, Washington
Son, age 22
Snohomish-County, Washington · implied b. ~1918 — 4 household members
| Surname | Peterson |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Marysville Town |
| 1935 Residence (County) | Snohomish |
| Occupation | Car Loader |
| Industry | Shingle Mill |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 88 |
| Highest Grade | H-1 |
| 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 Frank Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father S Peterson (~0.92 confidence) and mother Elsie Peterson (~0.92 confidence) and mother Hilda Peterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
S Peterson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Elsie Peterson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Hilda Peterson
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Peterson
Son · 1940 · age 22 · b. ~1918 · Washington
★ You are viewing this record
Sibling
Richard Peterson
Sibling · 1940 · age 11
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 — Snohomish-County, Washington
Open full size
1940 US Federal Census — Snohomish-County, Washington
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04360-00463)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna B. Farmer | 57 | Wife | — | Michigan |
| 2 | Henry B. Hermann | 41 | Head | Clerk | N. Dakota |
| 3 | Ella G. Hermann | 37 | Wife | — | Canada |
| 4 | Glenn C. Hermann | 10 | Son | — | Nebraska |
| 5 | Harry B. Kacker | 35 | Head | Carpenter Helper | Minnesota |
| 6 | Louise Kacker | 23 | Wife | — | Texas |
| 7 | Charles Turk | 32 | Head | Sawyer | Washington |
| 8 | Esther Turk | 30 | Wife | — | Washington |
| 9 | Yvonne Turk | 5 | Daughter | — | Washington |
| 10 | Harold Turk | 3 | Son | — | Washington |
| 11 | Charles Doherty | 38 | Head | Iron Molder | New York |
| 12 | Marie Doherty | 38 | Wife | — | France |
| 13 | Jacqueline Mitchell | 19 | Daughter | — | Washington |
| 14 | Marie L. Mitchell | 13 | Daughter | — | Washington |
| 15 | Shirley Ann Mitchell | 11 | Daughter | — | Washington |
| 17 | Isabelle Ullrich | 39 | Head | Cook | N. Dakota |
| 18 | Helen Grow | 26 | Cousin | — | Michigan |
| 19 | Clifford Gross | 31 | Head | Heading Sawyer | Nebraska |
| 20 | Anna M. Gross | 28 | Wife | — | Washington |
| 21 | Ernest R. Stockburn | 50 | Head | Pharmacist | Minnesota |
| 22 | Zoe Stockburn | 50 | Wife | — | Nebraska |
| 23 | Ernest R. Stockburn | 19 | Son | Clerk | Washington |
| 24 | S. E. Peterson | 56 | Head | Car Loader | Illinois |
| 25 | Elsie Peterson | 48 | Wife | — | Minnesota |
| 26 | Frank Peterson THIS PERSON | 22 | Son | Car Loader | Washington |
| 27 | Richard L. Peterson | 11 | Son | — | Washington |
| 28 | J. H. Rose | 58 | Head | Med. Doctor | Kansas |
| 29 | Eliza Rose | 39 | Wife | — | Michigan |
| 30 | John Jr. Rose | 8 | Son | — | Washington |
| 31 | Daniel C. Rose | 6 | Son | — | Washington |
| 32 | H. C. Tieman | 49 | Head | Auto Mechanic | S. Dakota |
| 33 | Mina Tieman | 45 | Wife | — | Minnesota |
| 34 | Herbert Tieman | 22 | Son | Vulcanizer Tire Repair | Minnesota |
| 35 | E. G. Merrill | 52 | Head | Pub. Acct. | Massachusetts |
| 36 | Lucye M. Merrill | 48 | Wife | Book Keeper | Virginia |
| 37 | David A. Merrill | 21 | Son | Odd Jobs | Washington |
| 38 | Homer H. Grones | 54 | Head | Truck Driver | Indiana |
| 39 | Goldie Grones | 52 | Wife | — | Nebraska |
| 40 | Rosie Bolton | 80 | Mother-in-law | — | Indiana |
Pedigree Summary
Frank + 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)