DB
Dorothy Brooks — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Francisco, California
Our Model Tree links this Dorothy Brooks across the 1910, 1920 and 1930 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents Richard & Martha — first a daughter (b.~1909), then head of a 3-person household.
Age 21
b. ~1909
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Brooks |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Clerk |
| Industry | Oil |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1909 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Brooks | Daughter | — | 21 | ~1909 |
| Richard Brooks | Son | — | 21 | ~1909 |
| Mattie Brooks | Head | — | 60 | ~1870 |
Census Appearances
1910
San Francisco, …
Daughter, age 1
San Francisco, California · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Daughter, age 10
San Francisco, California · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Daughter, age 21
San Francisco, California · implied b. ~1909 — 3 household members
| Surname | Brooks |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Clerk |
| Industry | Oil |
| Class of Worker | W |
| Can Read/Write | 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 Dorothy Brooks across 3 US Census years (1910, 1920 and 1930) in San Francisco, California, using XGBoost record linkage. Identified parents: father Richard Brooks (~0.92 confidence) and mother Martha Brooks (~0.92 confidence) and mother Mattie Brooks (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Richard Brooks
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Martha Brooks
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Mattie Brooks
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Brooks
Daughter · 1930 · age 21 · b. ~1909 · California
★ You are viewing this record
Sibling
Richard Brooks
Sibling · 1930 · age 21
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
48 people indexed on this census page (ia:1930:californiacensus00reel203:0199)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Simon Symes | 25 | Head | Musician | Virginia |
| 2 | Jeanette Symes | 23 | Wife | — | California |
| 3 | Ralph J Nelson | 24 | Head | Attorney | Minnesota |
| 4 | Agnes W Nelson | 24 | Wife | — | Michigan |
| 5 | Paul Nelson | 0 | Son | — | California |
| 6 | James Mackintosh | 37 | Head | Clerk | Missouri |
| 7 | Ira A Mackintosh | 37 | Wife | — | Missouri |
| 8 | Minnie Mackintosh | 19 | Wife | — | California |
| 9 | Nellie Cornell | 44 | Head | — | South Dakota |
| 10 | Kathleen Cornell | 17 | Daughter | — | California |
| 11 | Anita Cornell | 11 | Daughter | — | California |
| 12 | William J Holyram | 30 | Head | — | California |
| 13 | Albert Holyram | 26 | Brother | Clerk | California |
| 14 | Vera Holyram | 23 | Sister | Stenographer | California |
| 15 | Julia Holyram | 56 | Mother | — | California |
| 16 | Katherine Emmons | 63 | Head | Teacher | California |
| 17 | Freddie Emmons | 24 | Son | — | California |
| 18 | Isabella Stuart | 46 | Unit | — | Pennsylvania |
| 19 | Henry G Hansen | 46 | Head | Barber | Holland |
| 20 | Charlotte Hansen | 42 | Wife | — | California |
| 21 | German Muller | 42 | Head | Baker | Germany |
| 22 | Alice Muller | 31 | Wife | — | Illinois |
| 23 | Frank Muller | 1 | Son | — | Oregon |
| 24 | Frank Antones | 56 | Head | Painter | Italy |
| 25 | Theresa Antones | 52 | Wife | — | California |
| 26 | Frank Antones | 22 | Son | Clerk | California |
| 27 | August F. Meyer | 57 | Head | — | Germany |
| 28 | Eliza Meyer | 58 | Wife | — | Germany |
| 29 | Egbert F. Meyer | 22 | Son | Salesman | Germany |
| 30 | Charlie Gant | 32 | Head | Sales Clerk | California |
| 31 | Mercedes Gant | 29 | Wife | — | California |
| 32 | Hugo Gertz | 38 | Head | Representative | Germany |
| 33 | Eleanor Gertz | 38 | Wife | Secretary | California |
| 34 | Kathryn Dempsey | 53 | Lodger | — | Scotland |
| 35 | Ethel V Strosberger | 32 | Niece | Teacher | California |
| 36 | Dorothy Strosberger | 25 | Niece | — | California |
| 37 | Betty Strosberger | 5 | Niece | — | California |
| 38 | Ralph Furnice | 51 | Head | Salesman | Germany |
| 39 | Alma Furnice | 50 | Wife | — | California |
| 40 | Augusta Burmart | 54 | Head | — | California |
| 41 | John E. Burmart | 23 | Son | Clerk | California |
| 42 | Katherine Kirkpatrick | 46 | Head | — | Washington State |
| 43 | William J Kirkpatrick | 20 | Son | Clerk | California |
| 44 | Ellen M Kirkpatrick | 15 | Daughter | Teacher | California |
| 45 | Martha A Kirkpatrick | 13 | Daughter | — | California |
| 46 | Mattie Brooks | 60 | Head | Stenographer | California |
| 47 | Dorothy Brooks THIS PERSON | 21 | Daughter | Clerk | California |
| 48 | Richard Brooks | 21 | Son | — | California |
Pedigree Summary
Dorothy + 1 sibling
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)