KW
Katherine Williams — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this Katherine Williams across the 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a spouse (b.~1874), then head of a 7-person household.
Age 46
b. ~1874
Female
Spouse
Born: California
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Williams |
| Given Name | Katherine C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1874 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Katherine Williams | Spouse | — | 46 | ~1874 |
| Grace Williams | Daughter | — | 7 | ~1913 |
| Francis Williams | Son | — | 12 | ~1908 |
| J Williams | Head | — | 50 | ~1870 |
| Fred Williams | Son | — | 19 | ~1901 |
| Donald Williams | Son | — | 16 | ~1904 |
| Gordon Williams | Son | — | 22 | ~1898 |
Census Appearances
1910
San Francisco, …
Spouse, age 37
San Francisco, California · implied b. ~1873 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Katherine |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | California |
| Years Married | 17 |
| Children Born | 7 |
| Children Living | 4 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Spouse, age 46
San Francisco, California · implied b. ~1874 — 7 household members
| Surname | Williams |
| Given Name | Katherine C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| 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 Katherine Williams across 2 US Census years (1910 and 1920) in San Francisco, California, using XGBoost record linkage.
Show:
This person
Anchor record
Katherine Williams
Spouse · 1920 · age 46 · b. ~1874 · 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:1920:14thcensusofpopu133unit:0566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Henry Hogreve | 77 | Father | Longer | Germany |
| 52 | Benjamin Levy | 66 | Lodger | Elevator Operator | Poland |
| 53 | Albert Hall | 45 | Lodger | — | US |
| 54 | Alfred Peterson | 44 | Lodger | — | California |
| 55 | Thomas B. Murphy | 48 | Head | Packer | California |
| 56 | Agnes Murphy | 40 | Wife | None | California |
| 57 | Thomas J. Murphy | 18 | Son | Salesman | California |
| 58 | Helen Murphy | 13 | Daughter | None | California |
| 59 | Thomas F. Connor | 48 | Lodger | Carpenter | California |
| 60 | Lloyd Nyehil | 18 | Lodger | Printer Apprentice | California |
| 61 | Patrick J. Hopkins | 57 | Head | Laborer | California |
| 62 | Julia Hopkins | 52 | Wife | None | California |
| 63 | Grace Allman | 31 | Niece | Saleslady | California |
| 64 | Roger Allman | 9 | Grand Nephew | None | California |
| 65 | Melville T. Allman | 8 | Grand Nephew | None | California |
| 66 | Frank P. Wagner | 40 | Head | Post Office Clerk | California |
| 67 | Belle Wagner | 38 | Wife | None | California |
| 68 | Frank Wagner | 12 | Son | Errand Boy | California |
| 69 | Earl Wagner | 11 | Son | None | California |
| 70 | Paul Wagner | 6 | Son | None | California |
| 71 | J. Gordon F. Williams | 50 | Head | Saloon Man | California |
| 72 | Katherine C. Williams THIS PERSON | 46 | Wife | None | California |
| 73 | Gordon Williams | 22 | Son | Clerk | California |
| 74 | Fred Williams | 19 | Son | Salesman | California |
| 75 | Donald R. Williams | 16 | Son | Clerk | California |
| 76 | Francis J. Williams | 12 | Son | None | California |
| 77 | Grace Williams | 7 | Daughter | None | California |
| 78 | John E. Holden | 49 | Head | Cooper | Illinois |
| 79 | Matilda Holden | 48 | Wife | None | Iowa |
| 80 | Vivian Errington | 7 | Lodger | None | South Dakota |
| 81 | Ray Errington | 5 | Lodger | None | Washington |
| 82 | Theodore P. Errington | 66 | Lodger | Bricklayer | Maryland |
| 83 | Daniel Kennedy | 40 | Lodger | Ship Burner | Ireland |
| 84 | William Casement | 32 | Head | Teamster | California |
| 85 | Marie Casement | 25 | Wife | None | New York |
| 86 | Edith Casement | 6 | Daughter | None | California |
| 87 | Ethyl Casement | 4 | Daughter | None | California |
| 88 | Harry Dotta | 31 | Lodger | Painter | California |
| 89 | George A. Dotta | 29 | Lodger | Painter | New York |
| 90 | Victor Dotta | 27 | Lodger | Painter | New York |
| 91 | Grace Kanealy | 39 | Head | None | California |
| 92 | John Kanealy | 40 | Brother | Clerk | California |
| 93 | James Kanealy | 38 | Brother | Clerk | California |
| 94 | Cornelius Kanealy | 37 | Brother | Sugar | California |
| 95 | John Mc Donald | 50 | Head | Motorman | Canada |
| 96 | Margaret Mc Donald | 47 | Wife | None | Minnesota |
| 97 | Allan Mc Donald | 25 | Son | Motorman | Canada |
| 98 | Gertrude Mc Donald | 25 | Daughter in law | None | California |
| 99 | Bernice Mc Donald | 7 | Granddaughter | None | California |
| 100 | William Cavanaugh | 51 | Lodger | Motorman | Minnesota |
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)