RP
Ruth Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pierce-County, Washington
Our Model Tree links this Ruth Peterson across the 1920, 1930 and 1940 US Censuses in Pierce-County, Washington (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Peterson |
| Given Name | Ruth A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Additional Details | |
| Occupation | Sales Lady |
| Industry | Retail Bakery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 298 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Salesperson |
| Township / Ward | Tacoma City |
| Est. Birth Year | ~1917 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruby Peterson | Daughter | — | 23 | ~1917 |
| Ruth Peterson | Daughter | — | 23 | ~1917 |
| John Peterson | Head | — | 79 | ~1861 |
| Arnold Peterson | Son | — | 20 | ~1920 |
| Alfreda Peterson | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Pierce, Washington
Daughter, age 1
Pierce, Washington · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Pierce, Washington
Daughter, age 13
Pierce, Washington · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Ruth A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Pierce-County, Washington
Daughter, age 23
Pierce-County, Washington · implied b. ~1917 — 5 household members
| Surname | Peterson |
| Given Name | Ruth A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Occupation | Sales Lady |
| Industry | Retail Bakery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 298 |
| Highest Grade | Hs 4 |
| 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 Ruth Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Peterson (~0.92 confidence) and father John Peterson (~0.92 confidence) and mother Hilda Peterson (~0.92 confidence) and mother Alfreda Peterson (~0.92 confidence) and father Oscar Peterson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Peterson
b. ~1861
Source father
● Household
· direct · ~0.92
Father
John Peterson
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Hilda Peterson
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Alfreda Peterson
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
Oscar Peterson
b. ~1887
Source father
● Household
· direct · ~0.92
This person
Anchor record
Ruth Peterson
Daughter · 1940 · age 23 · b. ~1917 · Washington
★ You are viewing this record
Sibling
Ruby Peterson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Peterson
Sibling · 1940 · age 20
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-t0627-04388-00585)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William F Hess | 51 | Head | Realtor | Kentucky |
| 2 | Eva O Hess | 44 | Wife | — | Idaho |
| 3 | Jeff Jr. Eldridge | 39 | Head | Machinist | Nebraska |
| 4 | Minnie Eldridge | 35 | Wife | Housekeeper | Nebraska |
| 5 | Minnie M. Eldridge | 72 | Mother | — | Indiana |
| 6 | Paul R Mottau | 44 | Head | Collector | Washington |
| 7 | Jane M. Mottau | 44 | Wife | Editor Woman'S Page | Washington |
| 8 | Robert P Mottau | 19 | Son | New Worker | Washington |
| 9 | Bradley J Mottau | 15 | Son | — | Washington |
| 10 | California E. Metcalf | 63 | Mother-in-law | — | Wisconsin |
| 11 | Shearon E Evans | 54 | Head | Advertising Salesman | Utah |
| 12 | Leah E Evans | 23 | Wife | — | Utah |
| 13 | Robert E Evans | 9 | Son | — | Washington |
| 14 | Sharron R Evans | 3 | Daughter | — | Washington |
| 15 | John Peterson | 79 | Head | Part Owner | Sweden |
| 16 | Alfreda M Peterson | 56 | Wife | — | Sweden |
| 17 | Ruth A Peterson THIS PERSON | 23 | Daughter | Sales Lady | Washington |
| 18 | Ruby M Peterson | 23 | Daughter | Sales Lady | Washington |
| 19 | Arnold M Peterson | 20 | Son | — | Washington |
| 20 | Lydia F Hartman | 82 | Head | — | Germany |
| 21 | Helen A Raymond | 47 | Daughter | Stenographer | Washington |
| 22 | Joseph C Stati | 52 | Head | Bookkeeper | Minnesota |
| 23 | Agnes L Stati | 51 | Wife | — | North Dakota |
| 24 | Lloyd D Stati | 25 | Son | Office Clerk | Minnesota |
| 25 | Hazel M Stati | 19 | Daughter | — | Washington |
| 26 | Harriet T Stack | 47 | Head | Teacher | Washington |
| 27 | Mary E. Baker | 29 | Lodger | Secretary | Washington |
| 28 | Extra Line Misinformation Served Above | None | — | — | — |
| 29 | Extra Line Misinformation Served By Another State | None | — | — | — |
| 30 | Carl D Johnson | 54 | Head | Part Owner | Sweden |
| 31 | Ivory Rose Johnson | 51 | Wife | Janitor Work | Washington |
| 32 | Joseph E Johnson | 20 | Son | Filling Station Operator | Washington |
| 33 | Robert E Johnson | 16 | Son | — | Washington |
| 34 | John F Fitzsimmons | 76 | Head | — | Vermont |
| 35 | Anna P Fitzsimmons | 57 | Wife | — | Washington |
| 36 | Blue Ends Block 440 | None | — | — | — |
| 37 | Harry Kaufman | 54 | Head | Owner | Russia |
| 38 | Hortley Kaufman | 49 | Wife | — | Missouri |
| 39 | Philburn Kaufman | 16 | Son | — | Washington |
| 40 | Sylvia I Kaufman | 14 | Daughter | — | Washington |
Pedigree Summary
Ruth + 2 siblings
Gen 1 · 5 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)