HP
Helen Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Helen Peterson across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents George — first a spouse (b.~1896), then head of a 5-person household.
Age 44
b. ~1896
Female
Spouse
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Peterson |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1896 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Ethyl Peterson | Daughter | — | 8 | ~1932 |
| Ernest Peterson | Head | — | 48 | ~1892 |
| Mabel Dobson | Other | — | 73 | ~1867 |
| Peter Peterson | Son | — | 6 | ~1934 |
| Helen Peterson | Spouse | — | 44 | ~1896 |
Census Appearances
1920
San Francisco, …
Daughter, age 24
San Francisco, California · implied b. ~1896 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Helen R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Nebraska |
| Occupation | Nurse |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Daughter, age 34
San Francisco, California · implied b. ~1896 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Nebraska |
| Occupation | Manicurist |
| Industry | Beauty Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Spouse, age 44
San-Francisco-County, California · implied b. ~1896 — 5 household members
| Surname | Peterson |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Highest Grade | Hs 2 |
| 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 Helen Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Peterson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Peterson
b. ~1864
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Peterson
Spouse · 1940 · age 44 · b. ~1896 · 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-t0627-00313-00655)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Dougherty | 79 | Father-in-law | Wireman | Illinois |
| 2 | Elizabeth Dougherty | 74 | Mother-in-law | — | Illinois |
| 3 | Nellie Larsen | 74 | Lodger | — | At Sea |
| 4 | Henry Taylor | 65 | Head | Engineer | England |
| 5 | Margaret Taylor | 65 | Wife | — | Wales |
| 6 | Edith Taylor | 32 | Daughter | Bookkeeper | Iowa |
| 7 | Gladys Center | 39 | Daughter | Stenographer | Iowa |
| 8 | Ernest Peterson | 48 | Head | Cable Splicer | California |
| 9 | Helen Peterson THIS PERSON | 44 | Wife | — | California |
| 10 | Ethyl Peterson | 8 | Daughter | — | California |
| 11 | Peter Peterson | 6 | Son | — | California |
| 12 | Mabel Dobson | 73 | Mother-in-law | — | California |
| 13 | Fred Van Dam | 44 | Head | Buyer | Holland |
| 14 | Alice Van Dam | 42 | Wife | — | Mexico |
| 15 | — | None | — | — | — |
| 16 | James Quinto | 49 | Head | Owner | Italy |
| 17 | Jennie Quinto | 52 | Wife | — | Italy |
| 18 | J. S. Moody | 34 | Head | Broker | California |
| 19 | Anna Moody | 32 | Wife | — | Illinois |
| 20 | Paul M. Pudgeon | 68 | Head | Clerk | Nevada |
| 21 | Alice Pudgeon | 68 | Wife | — | California |
| 22 | George Pudgeon | 40 | Son | Truck Driver | California |
| 23 | Harold V. Lindenhoff | 47 | Head | Engineer | California |
| 24 | Myra Lindenhoff | 41 | Wife | — | Missouri |
| 25 | John J. Nolan | 45 | Head | Owner | California |
| 26 | Alice Nolan | 49 | Wife | — | Nebraska |
| 27 | Arthur Charbonneau | 31 | Head | Machinist | Washington |
| 28 | Esther Charbonneau | 25 | Wife | — | California |
| 29 | Edward S. Rummery | 33 | Head | Contractor | Colorado |
| 30 | Doris W. Rummery | 33 | Wife | — | California |
| 31 | Thomas E. Rummery | 12 | Son | — | California |
| 32 | Fred G. Rummery | 3 | Son | — | California |
| 33 | Kenneth Winton | 43 | Head | Dentist | Scotland |
| 34 | Hazel Winton | 37 | Wife | — | California |
| 35 | Kenneth Jr. Winton | 3 | Son | — | California |
| 36 | — | None | — | — | — |
| 37 | Mary E. Parsons | 65 | Head | — | Honolulu |
| 38 | Frank Walsh | 65 | Lodger | Laborer | California |
| 39 | John F. Mcguire | 34 | Head | Maintenance | California |
| 40 | Pauline Mcguire | 33 | Wife | Director | California |
Pedigree Summary
Helen
Gen 1 · 1 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)