WD
William Dunn — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this William Dunn across the 1900, 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 6-person household.
Age 58
b. ~1862
Male
Head
Born: California
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Dunn |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Manager |
| Industry | Saloon |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Manager |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1862 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Dunn | Head | — | 58 | ~1862 |
| William Dunn | Other | — | ~1920 | |
| Ada Dunn | Other | — | 23 | ~1897 |
| Timothy Blake | Other | — | 45 | ~1875 |
| Alice Dunn | Son | — | 23 | ~1897 |
| Margaret Dunn | Spouse | — | 47 | ~1873 |
Census Appearances
1900
San Francisco, …
Head, age 39
San Francisco, California · implied b. ~1861 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | California |
| Birth Month | Feb |
| Birth Year | 1861 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Saloon |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1910
San Francisco, …
Head, age 49
San Francisco, California · implied b. ~1861 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | California |
| Years Married | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Brick Mason |
| Industry | House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Head, age 58
San Francisco, California · implied b. ~1862 — 6 household members
| Surname | Dunn |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Manager |
| Industry | Saloon |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| 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 Dunn 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 Dunn
Head · 1920 · age 58 · b. ~1862 · 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:1920:14thcensusofpopu140unit:0868)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilhelmus Haldeman | 39 | Head | Doctor | California |
| 2 | Donna L. Haldeman | 29 | Wife | — | California |
| 3 | Donna L. Haldeman | 0 | Daughter | — | California |
| 4 | Donna Brunner | 62 | Mother-in-law | — | Kansas |
| 5 | Rita A. Barros | 61 | Servant | Servant | California |
| 6 | Jerome A. Simon | 26 | Head | Musician | Alabama |
| 7 | Maude C. Simon | 24 | Wife | — | New York |
| 8 | Harry Joseph | 39 | Head | Commercial Traveler | California |
| 9 | Mabel Joseph | 30 | Wife | — | California |
| 10 | Adelane Joseph | 2 | Daughter | — | California |
| 11 | Milton Meyer | 28 | Head | Salesman | California |
| 12 | Gertrude Meyer | 24 | Wife | — | California |
| 13 | Rita Donovan | 23 | Servant | Servant | Ireland |
| 14 | Rudolph C. Bohn | 39 | Head | Retail Merchant | Germany |
| 15 | Marie C. Bohn | 33 | Wife | — | Germany |
| 16 | Phyllis F. Bohn | 9 | Daughter | — | California |
| 17 | Henry M. Lipman | 37 | Head | Jeweler | New York |
| 18 | Pearl F. Lipman | 31 | Wife | — | California |
| 19 | Joan L. Lipman | 3 | Daughter | — | California |
| 20 | Gail L. Lipman | 0 | Daughter | — | California |
| 21 | Mildred M. Johnstone | 22 | Servant | Servant | Washington |
| 22 | Arthur Lederer | 57 | Head | Physician | England |
| 23 | Margaret Lederer | 25 | Wife | — | Illinois |
| 24 | William F. Lederer | 3 | Son | — | California |
| 25 | Charles A. Larson | 52 | Head | Agent | Sweden |
| 26 | Fanny B. Larson | 52 | Wife | — | New York |
| 27 | Charles A. Larson | 21 | Son | — | Missouri |
| 28 | Susan Larson | 14 | Daughter | — | Missouri |
| 29 | Rebecca Irwin | 70 | Head | — | Ireland |
| 30 | Marie A. Irwin | 39 | Daughter | Teacher | California |
| 31 | Harry Gabriel | 50 | Head | Agent | California |
| 32 | Carrie Gabriel | 45 | Wife | — | Alabama |
| 33 | Wallace Gabriel | 17 | Son | Clerk | California |
| 34 | Irving H. Gabriel | 15 | Son | Clerk | California |
| 35 | Ulrich B. Boucke | 37 | Head | Accountant | Bremen Ger |
| 36 | Annie H. Boucke | 24 | Wife | — | California |
| 37 | Frederick C. Boucke | 4 | Son | — | California |
| 38 | Robert H. Boucke | 1 | Son | — | California |
| 39 | Bettie A. Hortentine | 27 | Sister-in-law | Stenographer | California |
| 40 | William J. Dunn THIS PERSON | 58 | Head | Manager | California |
| 41 | Margaret Dunn | 47 | Wife | — | California |
| 42 | Alice F. Dunn | 23 | Son | Statistician | California |
| 43 | Ada Dunn | 23 | Daughter-in-law | — | California |
| 44 | William J. Dunn | 0 | Grandson | — | California |
| 45 | Timothy Blake | 45 | Brother-in-law | Porter | California |
| 46 | Philip C. Francke | 60 | Head | Gauger | Bavaria Ger |
| 47 | Caroline Francke | 54 | Wife | — | California |
| 48 | Hazel L. Francke | 28 | Daughter | Bookkeeper | California |
| 49 | Helen A. Francke | 20 | Daughter | Cost Counter | California |
| 50 | Amalia A. Nolti | 40 | Sister-in-law | — | California |
Related Census Records
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)