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Margaret Black — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Margaret Black across the 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 30-person household.
Age 58
b. ~1872
Female
Head
Born: California
Divorced
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Black |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Divorced |
| Birthplace | California |
| Age at First Marriage | 15 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Practical Nurse |
| Industry | City Hospital |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Practical Nurse |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1872 |
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.
30 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Samuel Rogers | Son | — | — | |
| Alexander Stone | Son | — | 18 | ~1912 |
| Gladys Van Hook | Daughter | — | 27 | ~1903 |
| Jerome Garber | Son | — | 10 | ~1920 |
| Samuel Rogers | Other | — | 79 | ~1851 |
| Margaret Black | Daughter | — | 15 | ~1915 |
| Marvin Garber | Son | — | 11 | ~1919 |
| Edward Halleman | Other | — | 44 | ~1886 |
| Mary Stone | Other | — | 44 | ~1886 |
| Margaret Black | Head | — | 58 | ~1872 |
| Edna Van Hook | Daughter | — | 27 | ~1903 |
| Joseph Garber | Other | — | 34 | ~1896 |
| Max Schwartz | Other | — | 37 | ~1893 |
| Patricia Halleman | Daughter | — | 1 | ~1929 |
| Jack Buchanan | Son | — | 8 | ~1922 |
| Julia Schwartz | Daughter | — | 8 | ~1922 |
| Joan Halleman | Daughter | — | ~1930 | |
| Johanna Wolfe | Other | — | 69 | ~1861 |
| Alma Garber | Other | — | 35 | ~1895 |
| Pauline Mero | Other | — | 70 | ~1860 |
| Bella Stone | Daughter | — | 19 | ~1911 |
| Marguerite Halleman | Other | — | 32 | ~1898 |
| Orville Reddington | Other | — | 27 | ~1903 |
| Elmer Mero | Other | — | 40 | ~1890 |
| Susan Mero | Other | — | 39 | ~1891 |
| George Mero | Other | — | 80 | ~1850 |
| Lura Van Hook | Other | — | 56 | ~1874 |
| Nellie Schwartz | Other | — | 33 | ~1897 |
| Leonora Rogers | Other | — | — | |
| Albert Stone | Other | — | 51 | ~1879 |
Census Appearances
1930
San Francisco, …
Head, age 58
San Francisco, California · implied b. ~1872 — 30 household members
| Surname | Black |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Divorced |
| Birthplace | California |
| Age at First Marriage | 15 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Practical Nurse |
| Industry | City Hospital |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 68
San-Francisco-County, California · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | May L |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Highest Grade | H 4 |
| 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 Margaret Black across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Black
Head · 1930 · age 58 · b. ~1872 · California
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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:californiacensus00reel203:0764)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul Agrah | 57 | Head | Barber | Jugoslavia |
| 2 | Marie Agrah | 51 | Wife-H | Saleslady | Jugoslavia |
| 3 | Charles B. Cama | 27 | R | Postman | New York |
| 4 | Violet Cama | 25 | Wife-H | Operator | England |
| 5 | Eleanor V. Cama | 3 | Daughter | — | California |
| 6 | Thomas Mchugh | 42 | Roomer | Postman | Irish Free State |
| 7 | Ralph S. Robinson | 57 | R | Carpenter | Illinois |
| 8 | Edith A. Robinson | 54 | Wife-H | — | California |
| 9 | Elizabeth J. Robinson | 10 | Grand-child | — | California |
| 10 | Samuel C. Campbell | 32 | R | Conductor | Scotland |
| 11 | Jean T. Campbell | 38 | Wife-H | — | Scotland |
| 12 | John Strant | 28 | R | Driver | California |
| 13 | Aurora N. Strant | 26 | Wife-H | — | California |
| 14 | Doris J. Strant | 3 | Daughter | — | California |
| 15 | John Strant | 0 | Son | — | California |
| 16 | Alfred C. Gerke | 40 | O | Fireman | California |
| 17 | Anna M. Gerke | 36 | Wife-H | — | California |
| 18 | Coleman J. Carey | 63 | O | — | Ireland |
| 19 | Annie Carey | 52 | Wife-H | — | Ireland |
| 20 | James J. Carey | 24 | Son | Electrician | California |
| 21 | Margaret Black THIS PERSON | 58 | Head | Practical Nurse | California |
| 22 | Margaret M. Black | 15 | Daughter | — | California |
| 23 | Edward C. Halleman | 44 | R | Carpenter | Irish Free State |
| 24 | Marguerite Halleman | 32 | Wife-H | — | California |
| 25 | Patricia M. Halleman | 1 | Daughter | — | California |
| 26 | Joan M. Halleman | 0 | Daughter | — | California |
| 27 | Lura D. Van Hook | 56 | R | — | Missouri |
| 28 | Edna G. Van Hook | 27 | Daughter | N.P. | Iowa |
| 29 | Gladys Van Hook | 27 | Daughter | Assistant | Iowa |
| 30 | Jack Buchanan | 8 | Son | — | California |
| 31 | Orville G. Reddington | 27 | Boarder | Teller | Kansas |
| 32 | Joseph Garber | 34 | R | Tailor | Russia |
| 33 | Alma Garber | 35 | Wife-H | — | Germany |
| 34 | Marvin A. Garber | 11 | Son | — | California |
| 35 | Jerome S. Garber | 10 | Son | — | California |
| 36 | Johanna Wolfe | 69 | Mother-in-law | — | Germany |
| 37 | Max J. Schwartz | 37 | O | Tailor | Poland |
| 38 | Nellie Schwartz | 33 | Wife-H | — | Germany |
| 39 | Julia F. Schwartz | 8 | Daughter | — | California |
| 40 | Samuel L. Rogers | 79 | O | Trier | California |
| 41 | Leonora F. Rogers | None | Wife-H | — | California |
| 42 | Samuel L. Jr. Rogers | None | Son | — | California |
| 43 | Elmer E. Mero | 40 | R | Sales | California |
| 44 | Susan Mero | 39 | Wife-H | — | California |
| 45 | George H. Mero | 80 | Father | Janitor | Illinois |
| 46 | Pauline Mero | 70 | Mother | — | California |
| 47 | Albert Stone | 51 | R | Proprietor | Egypt |
| 48 | Mary Stone | 44 | Wife-H | — | Palestine |
| 49 | Bella Stone | 19 | Daughter | Stenographer | Egypt |
| 50 | Alexander Stone | 18 | Son | Packer | Egypt |
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)