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John Ross — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Francisco, California
Our Model Tree links this John Ross across the 1910, 1920 and 1930 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents John & Annie — first a son (b.~1905), then head of a 5-person household.
Age 25
b. ~1905
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Ross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Santa Fe R.R. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Chauffeur |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Erwin Ross | Daughter | — | 20 | ~1910 |
| Alice Ross | Daughter | — | 29 | ~1901 |
| John Ross | Head | — | 56 | ~1874 |
| John Ross | Son | — | 25 | ~1905 |
| Joseph Ross | Son | — | 27 | ~1903 |
Census Appearances
1910
San Francisco, …
Other, age 5
San Francisco, California · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | John D. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| 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, …
Son, age 15
San Francisco, California · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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, …
Son, age 25
San Francisco, California · implied b. ~1905 — 5 household members
| Surname | Ross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Chauffeur |
| Industry | Santa Fe R.R. |
| 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 John Ross across 3 US Census years (1910, 1920 and 1930) in San Francisco, California, using XGBoost record linkage. Identified parents: father John Ross (~0.92 confidence) and mother Annie Ross (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Ross
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Annie Ross
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Ross
Son · 1930 · age 25 · b. ~1905 · California
★ You are viewing this record
Sibling
Joseph Ross
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Ross
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Erwin Ross
Sibling · 1930 · age 20
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:californiacensus00reel201:0431)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clayton W. Isaacs | 29 | Head | Order Clerk | Oregon |
| 2 | Helen R. Isaacs | 27 | Wife | — | Oregon |
| 3 | Gertrude Jacobs | 45 | Head | — | England |
| 4 | Gertrude Jacobs | 25 | Daughter | Telephone Op | California |
| 5 | Charles Jacobs | 24 | Son | Clerk | California |
| 6 | Alice Mcguinness | 23 | Daughter | — | California |
| 7 | Alfred Mcguinness | 21 | Son-in-law | Cement Worker | California |
| 8 | Helen Foster | 20 | Daughter | — | California |
| 9 | Lloyd Foster | 18 | Son | — | California |
| 10 | William May | 27 | Son-in-law | Steam Fitter | Nebraska |
| 11 | William Mcguinness | 26 | Son-in-law | Truck Driver | Texas |
| 12 | Vera Foster | 24 | Son-in-law | Bookkeeper | California |
| 13 | Thomas Minto | 60 | Head | Messenger | England |
| 14 | Nellie H. Minto | 60 | Wife | — | Australia |
| 15 | Leon Tahy | 43 | Head | Mgr. | California |
| 16 | Annette S. Tahy | 43 | Wife | — | California |
| 17 | Margaret Tahy | 14 | Daughter | — | California |
| 18 | Herbert Jones | 54 | Head | — | New York State |
| 19 | Columbia Jones | 59 | Wife | Machinist | California |
| 20 | Emma Jones | 26 | Daughter | — | California |
| 21 | Thomas Jones | 24 | Son | Set Up | California |
| 22 | Mildred Jones | 60 | Daughter | Misc. Nurse | California |
| 23 | Anna L. Jones | 68 | Mother | Watchmaker | California |
| 24 | Leonard Jones | 26 | Son | Mechanic | California |
| 25 | Irene Jones | 24 | Daughter | Repair Man | California |
| 26 | Martha Jones | 20 | Daughter | Typing | California |
| 27 | Antonia Agmatina | 54 | Roomer | Clerk | California |
| 28 | William H. Lape | 49 | Head | Spec. Agt. | New York |
| 29 | Mary E. Lape | 48 | Wife | — | California |
| 30 | Elizabeth Lape | 21 | Daughter | — | California |
| 31 | James Jordan | 66 | Head | Supt. | England |
| 32 | Katie Jordan | 66 | Wife | — | New York State |
| 33 | Albert E. Moore | 12 | Boarder | — | California |
| 34 | John E. Ross | 56 | Head | — | California |
| 35 | Alice Ross | 29 | Daughter | Teacher | California |
| 36 | Joseph Ross | 27 | Son | Teacher | California |
| 37 | John Ross THIS PERSON | 25 | Son | Chauffeur | California |
| 38 | Erwin R. Ross | 20 | Daughter | — | California |
| 39 | Frank H. Pleasants | 42 | Head | Police Off. | Kentucky |
| 40 | Adore Pleasants | 39 | Wife | Secretary | California |
| 41 | Amelia Bird | 41 | Roomer | Cashier | Oregon |
| 42 | Arthur Lundquist | 64 | Head | Machinist | Sweden |
| 43 | Augusta Lundquist | 57 | Wife | — | Sweden |
| 44 | Elaine Lundquist | 25 | Daughter | Steno. & Typist | California |
| 45 | William W. Muir | 54 | Head | Janitor | Scotland |
| 46 | Mary E. Muir | 52 | Wife | — | California |
| 47 | Woodrow Muir | 16 | Daughter | — | California |
| 48 | Ralph W. Fuller-Thwaite | 42 | Head | Clerk | California |
| 49 | Gladys M. Fuller-Thwaite | 42 | Wife | Steno. | California |
| 50 | William Fischer | 74 | Head | — | Germany |
Related Census Records
Pedigree Summary
John + 3 siblings
Gen 1 · 2 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)