HP
Henry Peterson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Henry Peterson across the 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 19-person household.
Age 5
b. ~1925
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Peterson |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1925 |
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.
19 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Henry | Age | Birth yr |
|---|---|---|---|---|
| Anna Peterson | Daughter | — | 9 | ~1921 |
| Alice Peterson | Daughter | — | 3 | ~1927 |
| Esther Peterson | Daughter | — | 29 | ~1901 |
| Emma Peterson | Daughter | — | 35 | ~1895 |
| Mary Peterson | Daughter | — | 13 | ~1917 |
| Helen Peterson | Daughter | — | 23 | ~1907 |
| Alice Peterson | Daughter | — | 37 | ~1893 |
| Alice Peterson | Daughter | — | 19 | ~1911 |
| Edith Peterson | Daughter | — | 33 | ~1897 |
| Ruth Peterson | Daughter | — | 31 | ~1899 |
| Frank Peterson | Head | — | 71 | ~1859 |
| James Peterson | Son | — | 11 | ~1919 |
| George Peterson | Son | — | 25 | ~1905 |
| Henry Peterson | Son | — | 5 | ~1925 |
| Robert Peterson | Son | — | 17 | ~1913 |
| Frank Peterson | Son | — | 7 | ~1923 |
| John Peterson | Son | — | 21 | ~1909 |
| Frank Peterson | Son | — | 27 | ~1903 |
| William Peterson | Son | — | 15 | ~1915 |
Census Appearances
1930
San Francisco, …
Son, age 5
San Francisco, California · implied b. ~1925 — 19 household members
| Surname | Peterson |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 16
San-Francisco-County, California · implied b. ~1924 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | M |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 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 Henry Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Henry Peterson
Son · 1930 · age 5 · b. ~1925 · California
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Sibling
Anna Peterson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Peterson
Sibling · 1930 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Peterson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Peterson
Sibling · 1930 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Peterson
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Peterson
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Peterson
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Peterson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Peterson
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Peterson
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Peterson
Sibling · 1930 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Peterson
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Peterson
Sibling · 1930 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Peterson
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Peterson
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Peterson
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Peterson
Sibling · 1930 · age 23
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
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:californiacensus00reel110:0739)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hans Hansen | 71 | Head | — | Denmark |
| 2 | Anna Hansen | 74 | Wife | — | California |
| 3 | Emma Hansen | 42 | Daughter | — | California |
| 4 | William Hansen | 40 | Son | — | Germany |
| 5 | Herman Hansen | 38 | Son | — | Germany |
| 6 | Otto Hansen | 36 | Son | Building | Germany |
| 7 | James Hansen | 33 | Son | — | Russia Poland |
| 8 | Anna Hansen | 30 | Daughter | Asst. Post Office | Minnesota |
| 9 | Arthur Hansen | 28 | Son | — | Washington |
| 10 | Gilbert Hansen | 26 | Son | — | California |
| 11 | Frank Peterson | 71 | Head | — | Finland |
| 12 | Alice Peterson | 37 | Daughter | Telephone | California |
| 13 | Emma Peterson | 35 | Daughter | — | California |
| 14 | Edith Peterson | 33 | Daughter | Typist | California |
| 15 | Ruth Peterson | 31 | Daughter | Stenographer | California |
| 16 | Esther Peterson | 29 | Daughter | Stenographer | California |
| 17 | Frank Peterson | 27 | Son | — | California |
| 18 | George Peterson | 25 | Son | — | California |
| 19 | Helen Peterson | 23 | Daughter | — | California |
| 20 | John Peterson | 21 | Son | — | California |
| 21 | Alice Peterson | 19 | Daughter | — | California |
| 22 | Robert Peterson | 17 | Son | — | California |
| 23 | William Peterson | 15 | Son | — | California |
| 24 | Mary Peterson | 13 | Daughter | — | California |
| 25 | James Peterson | 11 | Son | — | California |
| 26 | Anna Peterson | 9 | Daughter | — | California |
| 27 | Frank Peterson | 7 | Son | — | California |
| 28 | Henry Peterson THIS PERSON | 5 | Son | — | California |
| 29 | Alice Peterson | 3 | Daughter | — | California |
| 30 | Monrad Gylseth | 28 | Head | Gardener | Norway |
| 31 | Laura Gylseth | 26 | Wife | Servant | Norway |
| 32 | Raynald Raynald | 22 | Head | Plasterer | Norway |
| 33 | Inger Fuglesten | 76 | Boarder | — | Norway |
| 34 | Hjalmar Voldal | 30 | Boarder | Gardener | Norway |
| 35 | Anna Voldal | 20 | Boarder | Teacher | California |
| 36 | John Voldal | 18 | Boarder | — | California |
| 37 | Hans Amundsen | 50 | Head | Boilermaker | Norway |
| 38 | Anna Amundsen | 48 | Wife | — | Nebraska |
| 39 | Clifford Amundsen | 21 | Son | Welder | Montana |
| 40 | Marie Amundsen | 20 | Daughter | Cashier | Montana |
| 41 | Helen Amundsen | 18 | Daughter | — | California |
| 42 | Kenneth Amundsen | 16 | Son | Bus Boy | Montana |
| 43 | Walter Amundsen | 14 | Son | — | Montana |
| 44 | Theodore Amundsen | 12 | Son | — | California |
| 45 | Muriel Amundsen | 17 | Niece | — | Montana |
| 46 | Iver Iverson | 58 | Head | Mail Carrier | Minnesota |
| 47 | Alice Iverson | 57 | Wife | — | Iowa |
| 48 | Laura Iverson | 24 | Daughter | Secretary | Minnesota |
| 49 | Frank Iverson | 22 | Son | Asst. Cashier | California |
| 50 | Gladys Iverson | 20 | Daughter | Secretary | California |
Related Census Records
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)