WR
William Robertson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this William Robertson across the 1900, 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 5-person household.
Age 44
b. ~1876
Male
Head
Born: Scotland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Robertson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1903 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Occupation | Assistant |
| Industry | Secretary |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | R |
| Birthplace (normalized) | scotland |
| Occupation | Assistant |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1876 |
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 |
|---|---|---|---|---|
| Helen Robertson | Daughter | — | 17 | ~1903 |
| Agnes Robertson | Daughter | — | 14 | ~1906 |
| William Robertson | Head | — | 44 | ~1876 |
| Alexander Robertson | Son | — | 21 | ~1899 |
| Barbara Robertson | Spouse | — | 43 | ~1877 |
Census Appearances
1900
San Francisco, …
Head, age 30
San Francisco, California · implied b. ~1870 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Scotland |
| Birth Month | Nov |
| Birth Year | 1870 |
| Year of Immigration | 1890 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Nurseryman |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1910
San Francisco, …
Head, age 35
San Francisco, California · implied b. ~1875 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Scotland |
| Years Married | 13 |
| Year of Immigration | 1907 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Machinist |
| Industry | Shipyard |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1920
San Francisco, …
Head, age 44
San Francisco, California · implied b. ~1876 — 5 household members
| Surname | Robertson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1903 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Assistant |
| Industry | Secretary |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | R |
| Birthplace (normalized) | scotland |
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 Robertson across 3 US Census years (1900, 1910 and 1920) in San Francisco, California, using XGBoost record linkage.
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This person
Anchor record
William Robertson
Head · 1920 · age 44 · b. ~1876 · California
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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:1920:14thcensusofpopu136unit:0153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert Quinnell | 43 | Head | — | France |
| 2 | Victoria Quinnell | 48 | Wife | Store Keeper | Germany |
| 3 | Frances Heitman | 67 | Mother-in-law | Housewife | Germany |
| 4 | Sophia Heitman | 26 | Sister-in-law | — | California |
| 5 | Phillip Senochio | 28 | Head | Clerk | California |
| 6 | Mary Senochio | 25 | Wife | Saleslady | Australia |
| 7 | Mary Senochio | 3 | Daughter | — | Philadelphia |
| 8 | Eugene Senochio | 1 | Son | — | San Francisco |
| 9 | John Walker | 45 | Head | Driver | Illinois |
| 10 | Leila Walker | 41 | Wife | Store Keeper | California |
| 11 | Norma Walker | 15 | Daughter | Housewife | Illinois |
| 12 | Geneva Fisher | 14 | Step-daughter | — | California |
| 13 | Ethel Frost | 5 | Niece | — | California |
| 14 | George Barry | 41 | Head | — | New Hampshire |
| 15 | Elizabeth Barry | 41 | Wife | Housewife | New York State |
| 16 | Christopher Barry | 31 | Brother | Motorman | California |
| 17 | William Robertson THIS PERSON | 44 | Head | Assistant | Scotland |
| 18 | Barbara Robertson | 43 | Wife | Machinist | Scotland |
| 19 | Alexander Robertson | 21 | Son | Draughtsman | Scotland |
| 20 | Helen Robertson | 17 | Daughter | Helper | Scotland |
| 21 | Agnes Robertson | 14 | Daughter | Typist | Scotland |
| 22 | Amadeo Maschio | 48 | Head | — | Italy |
| 23 | Rose Maschio | 39 | Wife | Teacher | Italy |
| 24 | Amelia Maschio | 23 | Daughter | — | California |
| 25 | Fred Maschio | 20 | Son | Bookkeeper | California |
| 26 | Louise Maschio | 17 | Daughter | Teacher | California |
| 27 | John Macchio | 40 | Head | — | Italy |
| 28 | Ida Macchio | 44 | Wife | — | Italy |
| 29 | Annetta Macchio | 5 | Daughter | Housewife | California |
| 30 | Jeanette Macchio | 4 | Daughter | — | California |
| 31 | Antonio Guisto | 25 | Head | — | Italy |
| 32 | Antonietta Guisto | 68 | Mother | — | Italy |
| 33 | Theresa Guisto | 28 | Sister | Housewife | Italy |
| 34 | John Buneo | 41 | Head | Contractor | Italy |
| 35 | Jennie Buneo | 43 | Wife | Housewife | New York State |
| 36 | Edna Buneo | 21 | Daughter | Stenographer | California |
| 37 | Edwin Buneo | 17 | Son | Bookkeeper | California |
| 38 | Dorothy Buneo | 11 | Daughter | — | California |
| 39 | Joseph Collier | 44 | Head | Salesman | Austria |
| 40 | Belle Collier | 42 | Wife | Housewife | Austria |
| 41 | George Collier | 17 | Son | — | New York State |
| 42 | Saul Collier | 13 | Son | — | New York State |
| 43 | Emelia Bernds | 54 | Head | Housewife | Germany |
| 44 | Walter Bernds | 26 | Son | Clerk | California |
| 45 | Herman Bernds | 24 | Son | Clerk | California |
| 46 | Erna Bernds | 15 | Daughter | — | California |
| 47 | John Olson | 50 | Head | Jeweler | Sweden |
| 48 | Matilda Olson | 52 | Wife | Housewife | Sweden |
| 49 | Henning Olson | 15 | Son | — | Sweden |
| 50 | Florence Olson | 13 | Daughter | — | Spain |
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)