CP
Carl Peterson — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Francisco, California
Our Model Tree links this Carl Peterson across the 1910, 1920 and 1930 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents Gustav & Gustav — first a head (b.~1907), then head of a 3-person household.
Age 23
b. ~1907
Male
Head
Born: California
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Peterson |
| Given Name | Carl |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 20 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Stamper |
| Industry | Sheet metal |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Stamper |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1907 |
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 1930 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Linda Peterson | Daughter | — | ~1930 | |
| Carl Peterson | Head | — | 23 | ~1907 |
| Esther Peterson | Other | — | 22 | ~1908 |
Census Appearances
1910
San Francisco, …
Son, age 3
San Francisco, California · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Carl G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 13
San Francisco, California · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Head, age 23
San Francisco, California · implied b. ~1907 — 3 household members
| Surname | Peterson |
| Given Name | Carl |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 20 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Stamper |
| Industry | Sheet metal |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Veteran | No |
| 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 Carl Peterson across 3 US Census years (1910, 1920 and 1930) in San Francisco, California, using XGBoost record linkage. Identified parents: father Gustav Peterson (~0.92 confidence) and father Gustav Peterson (~0.92 confidence) and mother Olga Peterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gustav Peterson
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Gustav Peterson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Olga Peterson
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Peterson
Head · 1930 · age 23 · b. ~1907 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — San Francisco, California
Open full size
1930 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel196:1047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Bartelt | 67 | head | Machinist | Germany |
| 2 | Bertha Bartelt | 69 | wife-H | None | Germany |
| 3 | Frank Scanlon | 33 | head | Motorman | California |
| 4 | Mary Scanlon | 31 | wife-H | None | South Ireland |
| 5 | Lillian Scanlon | 11 | daughter | None | California |
| 6 | John Scanlon | 9 | son | None | California |
| 7 | Frank Jr. Scanlon | 7 | son | None | California |
| 8 | Patrick Mulholland | 57 | head | Miller | Northern Ireland |
| 9 | Mary Mulholland | 55 | wife-H | None | California |
| 10 | Palmyra Molina | 19 | boarder | Clerk | California |
| 11 | August Waldman | 42 | head | Stevedore | California |
| 12 | Marie Waldman | 41 | wife-H | None | California |
| 13 | Robert Waldman | 9 | son | None | California |
| 14 | Albert Jr. Waldman | 5 | son | None | California |
| 15 | Emma Johnston | 63 | head-H | Seamstress | Illinois |
| 16 | Le Clara Johnston | 31 | daughter | Clerk | Nebraska |
| 17 | Delores Faulkner | 3 | boarder | None | California |
| 18 | Carl Michler | 31 | head | Carpenter | Germany |
| 19 | Erna Michler | 31 | wife-H | None | Germany |
| 20 | Annie Michler | 9 | daughter | None | Germany |
| 21 | Otto Michler | 8 | son | None | Germany |
| 22 | Kurt Sfiger | 40 | head | Machinist | Germany |
| 23 | Tillie Sfiger | 40 | wife-H | None | Norway |
| 24 | Olga Sfiger | 6 | daughter | None | California |
| 25 | Robert Sfiger | 4 | son | None | California |
| 26 | Teresa Sfiger | 2 | daughter | None | California |
| 27 | Dorothy Sfiger | 1 | daughter | None | California |
| 28 | Joseph Varni | 74 | head | None | Italy |
| 29 | Rosa Varni | 67 | wife-H | None | Pennsylvania |
| 30 | Dino Varni | 31 | son | Newboy | California |
| 31 | Thelma L. Varni | 21 | daughter | Stenographer | California |
| 32 | Hannah Gallagher | 58 | head-H | None | California |
| 33 | Edna Lagomarsino | 36 | daughter | Tel Operator | California |
| 34 | Marie Lagomarsino | 15 | granddaughter | None | California |
| 35 | Virginia Lagomarsino | 12 | granddaughter | None | California |
| 36 | Dorothy Ichters | 7 | boarder | None | California |
| 37 | John Monolakis | 27 | boarder | None | Greece |
| 38 | Howard Lawrence | 21 | head | Salesman | California |
| 39 | Virginia Lawrence | 17 | wife-H | None | California |
| 40 | John Ryan | 36 | head | Laborer | South Ireland |
| 41 | Josephine Ryan | 29 | wife-H | None | South Ireland |
| 42 | Kathleen Ryan | 9 | daughter | None | Canada Eng. |
| 43 | Josephine Ryan | 8 | daughter | None | California |
| 44 | Jack Ryan | 5 | son | None | California |
| 45 | Gerald Ryan | 4 | son | None | California |
| 46 | Helen Ryan | 1 | daughter | None | California |
| 47 | Donald Ryan | 0 | son | None | California |
| 48 | Carl Peterson THIS PERSON | 23 | head | Stamper | California |
| 49 | Esther Peterson | 22 | wife-H | None | California |
| 50 | Linda Peterson | 0 | daughter | None | California |
Pedigree Summary
Carl
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 1930 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)