DG
Dorothy Graham — 1930 US Census Record
Linked across censuses1930 United States Federal Census · San Francisco, California
Our Model Tree links this Dorothy Graham across the 1930 and 1940 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 9-person household.
Age 7
b. ~1923
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Graham |
| Given Name | Dorothy A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1923 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Graham | Daughter | — | 7 | ~1923 |
| Edna Graham | Daughter | — | 18 | ~1912 |
| Robert Graham | Daughter | — | 17 | ~1913 |
| Robert Graham | Head | — | 34 | ~1896 |
| Robert Graham | Son | — | 1 | ~1929 |
| William Graham | Son | — | 3 | ~1927 |
| Mary Graham | Spouse | — | 30 | ~1900 |
| Edward Graham | Son | — | 15 | ~1915 |
| Edward Graham | Son | — | 13 | ~1917 |
Census Appearances
1930
San Francisco, …
Daughter, age 7
San Francisco, California · implied b. ~1923 — 9 household members
| Surname | Graham |
| Given Name | Dorothy A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Daughter, age 17
San-Francisco-County, California · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Dolly Mae |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 1935 Residence | California |
| 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 Graham across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Dorothy Graham
Daughter · 1930 · age 7 · b. ~1923 · California
★ You are viewing this record
Sibling
Robert Graham
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Graham
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Graham
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Graham
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Graham
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Graham
Sibling · 1930 · age 3
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:californiacensus00reel205:0049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Collins | 45 | Head | — | California |
| 2 | Mary Collins | 34 | Wife | — | California |
| 3 | Thomas Collins | 15 | Son | — | California |
| 4 | Edith M Collins | 13 | Daughter | Secretary | California |
| 5 | Mary Collins | 10 | Daughter | — | California |
| 6 | Ellen V Anderson | 44 | Head | Homemaker | California |
| 7 | Eleanor M Anderson | 16 | Daughter | — | California |
| 8 | Edward Anderson | 12 | Son | — | California |
| 9 | Hans Jensen | 60 | Head | Salesman | Germany |
| 10 | Wife Jensen | 56 | Wife | — | Denmark |
| 11 | Mary Spillane | 36 | Roomer | Reg. Nurse | Irish Free State |
| 14 | Morris P Gallo | 57 | Head | — | California |
| 15 | Lucille Gallo | 51 | Wife | Candy Maker | California |
| 16 | Christopher J Keane | 41 | Son-in-law | Fireman | California |
| 17 | Jean Keane | 31 | Daughter | Clerk | California |
| 18 | Edward P Keane | 10 | Grandson | — | California |
| 19 | Jean Keane | 1 | Granddaughter | — | California |
| 20 | Hugh E Bentley | 36 | Head | Truck Driver | England |
| 21 | Mary E Bentley | 36 | Wife | — | Nebraska |
| 22 | Charles F Bentley | 15 | Son | — | California |
| 23 | Edward Bentley | 21 | Roomer | Truck Driver | California |
| 24 | Emile Bentley | 21 | Roomer | Truck Driver | California |
| 25 | Theodore Bentley | 31 | Roomer | Truck Driver | California |
| 26 | Robert T Graham | 34 | Head | Mechanic | Maryland |
| 27 | Mary Graham | 30 | Wife | — | New York State |
| 28 | Dorothy A Graham THIS PERSON | 7 | Daughter | — | California |
| 29 | William M Graham | 3 | Son | — | California |
| 30 | Robert J Graham | 1 | Son | — | California |
| 31 | Edna L Graham | 18 | Daughter | Bookkeeper | California |
| 32 | Robert Graham | 17 | Daughter | — | California |
| 33 | Edward Graham | 15 | Son | — | California |
| 34 | Edward Graham | 13 | Son | — | California |
| 35 | John Linden | 50 | Head | Watchman | Missouri |
| 36 | Mae M Linden | 48 | Wife | — | Ohio |
| 37 | Marie Liguori | 50 | Head | — | Spain |
| 38 | Angelina L Liguori | 20 | Daughter | — | California |
| 39 | Ignatius Caltram | 45 | Head | — | Italy |
| 40 | Mary Caltram | 40 | Wife | — | Italy |
| 41 | John Caltram | 20 | Son | Clerk | California |
| 42 | Rose Caltram | 18 | Daughter | Clerk | California |
| 43 | Mary Caltram | 16 | Daughter | — | California |
| 44 | John J Sullivan | 48 | Head | — | Michigan |
| 45 | Anna B Sullivan | 44 | Wife | Chauffeur | Michigan |
| 46 | John J Jr Sullivan | 24 | Son-in-law | Upholsterer | Michigan |
| 47 | Beatrice Sullivan | 22 | Daughter | Baker | New York |
| 48 | Harold Sullivan | 22 | Daughter | Waitress | Michigan |
| 49 | John Sullivan | 20 | Son | — | California |
| 50 | John Ferracci | 35 | Roomer | Mechanic | California |
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)