DP
Dorothy Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Dorothy Peterson across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Elmer & Corine — first a spouse (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Female
Spouse
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Peterson |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Industry | H |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1916 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| George Peterson | Head | — | 24 | ~1916 |
| Dorothy Peterson | Spouse | — | 24 | ~1916 |
| Mary Peterson | Daughter | — | 2 | ~1938 |
Census Appearances
1920
San Francisco, …
Daughter, age 3
San Francisco, California · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Dorothy C. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Daughter, age 13
San Francisco, California · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Spouse, age 24
San-Francisco-County, California · implied b. ~1916 — 3 household members
| Surname | Peterson |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Industry | H |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Dorothy Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Elmer Peterson (~0.92 confidence) and mother Corine Peterson (~0.92 confidence) and mother Corinne Peterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Elmer Peterson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Corine Peterson
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Corinne Peterson
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Peterson
Spouse · 1940 · age 24 · b. ~1916 · California
★ 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 — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00312-00258)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rosalia Jacob | 51 | Wife | — | California |
| 2 | George Peterson | 24 | Head | Salesman | California |
| 3 | Dorothy Peterson THIS PERSON | 24 | Wife | — | California |
| 4 | Mary Ellen Peterson | 2 | Daughter | — | California |
| 5 | Walter Patterson | 42 | Head | Salesman | California |
| 6 | Erma Patterson | 38 | Wife | Statistician | California |
| 7 | Jessie Wiedemann | 61 | Mother-in-law | — | California |
| 8 | Hamilton Wladimer | 42 | Head | Telephone Man | Illinois |
| 9 | Marcella Wladimer | 45 | Wife | Artist | California |
| 10 | Alice Wladimer | 19 | Daughter | — | California |
| 11 | Elaine Wladimer | 18 | Daughter | — | California |
| 12 | Jacqueline Wladimer | 16 | Daughter | — | California |
| 13 | Oscar Hanson | 53 | Head | Accountant | New York |
| 14 | Mary Hanson | 42 | Wife | — | California |
| 15 | Herbert C. Friedrich | 31 | Head | Christian Science | California |
| 16 | Louise Friedrich | 31 | Wife | — | California |
| 17 | Lois Friedrich | 3 | Daughter | — | California |
| 18 | Muriel Friedrich | 0 | Daughter | — | California |
| 19 | Otto Frish | 50 | Head | Painter | Minnesota |
| 20 | Lydia Frish | 52 | Wife | — | Minnesota |
| 21 | Barbara Frish | 17 | Daughter | — | California |
| 22 | John Eunhawtz | 29 | Head | Dist Manager | Mexico |
| 23 | Winifred Eunhawtz | 27 | Wife | — | California |
| 24 | Sigrid Monsun | 42 | Head | — | Denmark |
| 25 | Robert Monsun | 15 | Son | — | California |
| 26 | Richard M. Varni | 29 | Head | Salesman | California |
| 27 | Agnes Varni | 31 | Wife | — | California |
| 28 | Sheila Varni | 4 | Daughter | — | California |
| 29 | Marilyn Varni | 0 | Daughter | — | California |
| 30 | Louis Grieb | 85 | Head | — | Germany |
| 31 | Louis Grieb | 54 | Son | Engineer | California |
| 32 | Anna Grieb | 52 | Daughter | — | California |
| 33 | Arthur Patrick | 29 | Head | Longshoreman | California |
| 34 | Carmen Patrick | 31 | Wife | — | Guam |
| 35 | Ronald Patrick | 6 | Son | — | California |
| 36 | Diane Patrick | 3 | Daughter | — | California |
| 37 | John J. Fischer | 57 | Head | Jeweler | Wisconsin |
| 38 | Irene Fischer | 53 | Wife | Artist | California |
| 39 | Dorothy Fischer | 24 | Daughter | — | California |
| 40 | Genevieve Fischer | 19 | Daughter | Stenographer | California |
Pedigree Summary
Dorothy
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)