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Oscar Anderson — 1920 US Census Record
Model Tree available1920 United States Federal Census · San Francisco, California
Our Model Tree links this Oscar Anderson across the 1900, 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents Charles & Andrew — first a son (b.~1900), then head of a 6-person household.
Age 20
b. ~1900
Male
Son
Born: California
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Anderson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Clerk |
| Industry | Oil Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1900 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Amy Anderson | Daughter | — | 17 | ~1903 |
| Charles Anderson | Head | — | 58 | ~1862 |
| Charles Bradley | Other | — | 40 | ~1880 |
| Oscar Anderson | Son | — | 20 | ~1900 |
| Lucy Anderson | Spouse | — | 51 | ~1869 |
| Bessie Bradley | Spouse | — | 39 | ~1881 |
Census Appearances
1900
San Francisco, …
Son, age 1
San Francisco, California · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Birth Month | Mar |
| Birth Year | 1899 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1910
San Francisco, …
Son, age 12
San Francisco, California · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 20
San Francisco, California · implied b. ~1900 — 6 household members
| Surname | Anderson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Clerk |
| Industry | Oil Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Oscar Anderson across 3 US Census years (1900, 1910 and 1920) in San Francisco, California, using XGBoost record linkage. Identified parents: father Charles Anderson (~0.92 confidence) and father Andrew Anderson (~0.92 confidence) and mother Lucy Anderson (~0.92 confidence) and mother Christina Anderson (~0.92 confidence) and father John Anderson (~0.92 confidence) and mother Amanda Anderson (~0.92 confidence) and mother Bessie Bradley (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Anderson
b. ~1862
Source father
● Household
· direct · ~0.92
Father
Andrew Anderson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Lucy Anderson
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Christina Anderson
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
John Anderson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Amanda Anderson
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Bessie Bradley
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Anderson
Son · 1920 · age 20 · b. ~1900 · California
★ You are viewing this record
Sibling
Amy Anderson
Sibling · 1920 · age 17
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
1920 US Federal Census — San Francisco, California
Open full size
1920 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu142unit:0301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Mangan | 30 | Head | — | Texas |
| 2 | Mary Mangan | 28 | Wife | — | California |
| 3 | Eleanor Mangan | 3 | Daughter | — | California |
| 4 | William Fast | 35 | Head | Painter | Germany |
| 5 | Lena Fast | 29 | Wife | — | New York |
| 6 | Lena Fast | 11 | Daughter | — | California |
| 7 | Herman Fast | 5 | Son | — | California |
| 8 | Charles Etheridge | 54 | Head | Janitor | England |
| 9 | Elizabeth Etheridge | 42 | Wife | — | Germany |
| 10 | Henry Etheridge | 15 | Son | — | California |
| 11 | Robert Etheridge | 12 | Son | — | California |
| 12 | Evelyn Fish | 20 | Step-daughter | Operator | California |
| 13 | Alice Fish | 18 | Step-daughter | — | California |
| 14 | Charles Fish | 16 | Step-son | — | California |
| 15 | George Fish | 13 | Step-son | — | California |
| 16 | Charles Anderson | 58 | Head | Brick Layer | Sweden |
| 17 | Lucy Anderson | 51 | Wife | — | Sweden |
| 18 | Oscar Anderson THIS PERSON | 20 | Son | Clerk | California |
| 19 | Amy Anderson | 17 | Daughter | Stenographer | California |
| 20 | Charles Bradley | 40 | Boarder | Salesman | Missouri |
| 21 | Bessie Bradley | 39 | Wife | — | Wisconsin |
| 22 | Rudolph Faust | 48 | Head | Salesman | California |
| 23 | Emma Faust | 35 | Wife | — | California |
| 24 | Thelma Faust | 15 | Daughter | — | California |
| 25 | Lillian Faust | 13 | Daughter | — | California |
| 26 | George Innes | 74 | Head | — | Scotland |
| 27 | Isabelle Innes | 64 | Wife | — | Scotland |
| 28 | James Franken | 50 | Head | — | California |
| 29 | Lillian Franken | 47 | Wife | — | England |
| 30 | Elyrod Cordray | 29 | Head | Tile Setter | Missouri |
| 31 | Edna M Cordray | 29 | Wife | — | California |
| 32 | Marjorie Cordray | 4 | Daughter | — | California |
| 33 | Louis Zetner | 42 | Head | Driver | Munich |
| 34 | Mary Zetner | 35 | Wife | — | California |
| 35 | Beverly Zetner | 4 | Daughter | — | California |
| 36 | Pearl Zetner | 3 | Daughter | — | California |
| 37 | Louis Zetner | 1 | Son | — | California |
| 38 | Herbert Zetner | 0 | Son | — | California |
| 39 | Theresa Avrott | 50 | Aunt | — | California |
| 40 | Louis Kaffie | 35 | Head | Clerk | Russia |
| 41 | Ida Kaffie | 35 | Wife | — | South Dakota |
| 42 | George Dobberke | 47 | Head | Machinist | Berlin |
| 43 | Pauline Dobberke | 49 | Wife | Laundress | Switzerland |
| 44 | Joseph Pitschman | 40 | Head | Driller | Pilsen |
| 45 | Stella Pitschman | 40 | Wife | — | Hanover |
| 46 | William Kelly | 32 | Head | House Smith | California |
| 47 | Lena Kelly | 28 | Wife | — | California |
| 48 | Vivian Kelly | 12 | Daughter | — | California |
| 49 | Marion Kelly | 11 | Daughter | — | California |
| 50 | Richard Kelly | 8 | Son | — | California |
Pedigree Summary
Oscar + 1 sibling
Gen 1 · 7 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)