WR
William Ross — 1920 US Census Record
Model Tree available1920 United States Federal Census · San Francisco, California
Our Model Tree links this William Ross across the 1900, 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents John & Annie — first a son (b.~1900), then head of a 5-person household.
Age 20
b. ~1900
Male
Son
Born: California
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Ross |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Ball Bearing 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 | Mechanic |
| 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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Rita Ross | Daughter | — | 12 | ~1908 |
| John Ross | Head | — | 46 | ~1874 |
| John Ross | Son | — | 15 | ~1905 |
| William Ross | Son | — | 20 | ~1900 |
| Annie Ross | Spouse | — | 39 | ~1881 |
Census Appearances
1900
San Francisco, …
Other, age 1
San Francisco, California · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | William J. |
| Relationship to Head | G-Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Birth Month | Dec |
| Birth Year | 1899 |
| 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 |
1910
San Francisco, …
Other, age 10
San Francisco, California · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | William J. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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 20
San Francisco, California · implied b. ~1900 — 5 household members
| Surname | Ross |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Mechanic |
| Industry | Ball Bearing 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 William Ross across 3 US Census years (1900, 1910 and 1920) 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
William Ross
Son · 1920 · age 20 · b. ~1900 · California
★ You are viewing this record
Sibling
John Ross
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Ross
Sibling · 1920 · age 12
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:0976)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Billy B Venn | 56 | Head | — | California |
| 52 | Charles C Hathaway | 41 | Head | Clerk | California |
| 53 | Nellie A Hathaway | 47 | Wife | — | California |
| 54 | Zoe Watson | 35 | Boarder | Health Worker | California |
| 55 | William H Barry | 34 | Head | Manager | California |
| 56 | Grace M Barry | 31 | Wife | — | California |
| 57 | James M Barry | 6 | Son | — | California |
| 58 | William H Barry | 1 | Son | — | California |
| 59 | Harriet Lake | 25 | Servant | Servant | California |
| 60 | Julius A Born | 49 | Head | Superintendent | Germany |
| 61 | Catherine A Born | 48 | Wife | — | California |
| 62 | Howard Born | 20 | Son | — | California |
| 63 | William Hathaway | 19 | Nephew | — | California |
| 64 | May Alvord | 26 | Niece | Teacher | California |
| 65 | Frank M Buckley | 30 | Head | Chief Clerk | California |
| 66 | Marie Buckley | 28 | Wife | — | California |
| 67 | Eleanor Buckley | 4 | Daughter | — | California |
| 68 | George Buckley | 2 | Son | — | California |
| 69 | John Wilson | 74 | Head | Officer | Sweden |
| 70 | Christina Wilson | 55 | Wife | — | Sweden |
| 71 | Iris Blanche Wilson | 32 | Daughter | — | California |
| 72 | Hazel Wilson | 17 | Daughter | — | California |
| 73 | Horace Johnson | 32 | Head | Credit Man | California |
| 74 | Marie Johnson | 27 | Wife | — | California |
| 75 | Horace Johnson | 2 | Son | — | California |
| 76 | James Lough | 70 | Father-in-law | — | England |
| 77 | George Gryer | 32 | Head | Tailor | Russia |
| 78 | Sally Gryer | 27 | Wife | — | England |
| 79 | Stanley Gryer | 4 | Son | — | California |
| 80 | Lala Winkley | 21 | Lodger | Stenographer | Scotland |
| 81 | John H Ross | 46 | Head | Owner | California |
| 82 | Annie R Ross | 39 | Wife | — | California |
| 83 | William J Ross THIS PERSON | 20 | Son | Mechanic | California |
| 84 | John Ross | 15 | Son | — | California |
| 85 | Rita E Ross | 12 | Daughter | — | California |
| 86 | Margaret Geide | 40 | Head | — | California |
| 87 | Ella Geide | 8 | Daughter | — | California |
| 88 | Margaret Geide | 6 | Daughter | — | California |
| 89 | Charles Richard | 77 | Brother | — | Germany |
| 90 | Nellie Du Prey | 41 | Sister | Bookkeeper | California |
| 91 | Edward Du Prey | 14 | Nephew | — | California |
| 92 | Sydney W Smith | 40 | Head | Dealer | California |
| 93 | Burtel C Smith | 36 | Wife | — | California |
| 94 | Muriel C Smith | 10 | Daughter | — | California |
| 95 | Lois M Smith | 5 | Daughter | — | California |
| 96 | Martin Clausen | 38 | Head | Owner | Denmark |
| 97 | Esther Clausen | 25 | Wife | — | California |
| 98 | Phyllis Clausen | 2 | Daughter | — | California |
| 99 | Victor Johnson | 24 | Brother-in-law | Delivery Clerk | California |
| 100 | Charles Brummer | 49 | Head | — | Ireland |
Pedigree Summary
William + 2 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 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)