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William Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this William Sullivan across the 1900, 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a head (b.~1855), then head of a 4-person household.
Age 65
b. ~1855
Male
Head
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Sullivan |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1869 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1875 |
| Birthplace (normalized) | ireland |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1855 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Sullivan | Head | — | 65 | ~1855 |
| James Sullivan | Son | — | 27 | ~1893 |
| William Sullivan | Son | — | 29 | ~1891 |
| Mary Sullivan | Spouse | — | 54 | ~1866 |
Census Appearances
1900
San Francisco, …
Head, age 46
San Francisco, California · implied b. ~1854 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Sept |
| Birth Year | 1854 |
| Year of Immigration | 1875 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Horse Shoer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
San Francisco, …
Head, age 55
San Francisco, California · implied b. ~1855 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 22 |
| Year of Immigration | 1872 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Horse Shoer |
| Industry | Own Shop |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
San Francisco, …
Head, age 65
San Francisco, California · implied b. ~1855 — 4 household members
| Surname | Sullivan |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1869 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1875 |
| Birthplace (normalized) | ireland |
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 Sullivan 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 Sullivan
Head · 1920 · age 65 · b. ~1855 · 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:1920:14thcensusofpopu135unit:0349)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nettie L. Stritch | 55 | sister-in-law | Tailoress | Missouri |
| 2 | Joseph Gleason | 47 | head | Salesman | Virginia |
| 3 | Harriet E. Gleason | 41 | wife | Dressmaker | California |
| 4 | Lorice E. Gleason | 15 | daughter | None | California |
| 5 | Henry J. Temmermann | 46 | head | Storekeeper | Bremen |
| 6 | Annie Temmermann | 43 | wife | None | Hamburg |
| 7 | Vallejo J. Temmermann | 14 | daughter | None | California |
| 8 | John J. Mcinerney | 26 | head | Fireman | Colorado |
| 9 | Josephine M. Mcinerney | 25 | wife | None | California |
| 10 | John M. Mcinerney | 4 | son | None | California |
| 11 | Leo F. Mcinerney | 1 | son | None | California |
| 12 | Anthony Holmes | 38 | head | Seaman | Finland |
| 13 | Martha Holmes | 29 | wife | None | Finland |
| 14 | Nellie E. Holmes | 1 | daughter | None | California |
| 15 | John Strid | 24 | lodger | Oiler | Sweden |
| 16 | Gilbert A. Conger | 38 | head | Asst. Manager | Pennsylvania |
| 17 | Mabel Conger | 32 | wife | None | Missouri |
| 18 | Louis R. Conger | 14 | son | None | California |
| 19 | Camille Conger | 11 | daughter | None | California |
| 20 | Edward Conger | 8 | son | None | California |
| 21 | Albert Conger | 5 | son | None | California |
| 22 | Mary G. Conoran | 49 | head | Dressmaker | California |
| 23 | Farley Conoran | 7 | grandson | None | California |
| 24 | James Conoran | 6 | grandson | None | California |
| 25 | David S. Van Gilder | 46 | lodger | Purser | California |
| 26 | Paul De Guilio | 39 | head | Retail Merchant | Italy |
| 27 | Lena De Guilio | 34 | wife | Saleswoman | California |
| 28 | Eliza H. Clement | 54 | head | Dressmaker | Wisconsin |
| 29 | Edith Clement | 26 | daughter | Saleswoman | Oregon |
| 30 | Fred A. Clement | 25 | son | Riveter | California |
| 31 | Sarah J. Langley | 65 | head | None | England |
| 32 | Allan E. Langley | 30 | son | Machinist | Hawaii |
| 33 | William J. Turnes | 61 | head | Inspector | Indiana |
| 34 | Annie B. Turnes | 57 | wife | None | Ireland |
| 35 | Mabel H. Turnes | 30 | daughter | None | California |
| 36 | Annie Turnes | 22 | daughter | None | California |
| 37 | James G. Turnes | 21 | son | None | California |
| 38 | Florence J. Turnes | 15 | daughter | None | California |
| 39 | Harry J. Turnes | 13 | son | None | California |
| 40 | Fritz E. Johnson | 38 | head | Deck Hand | Sweden |
| 41 | Eunice Johnson | 33 | wife | Laundress | Arizona |
| 42 | Edward F. Johnson | 7 | son | None | California |
| 43 | Alan H. Johnson | 3 | son | None | California |
| 44 | Lucy A. Nason | 74 | head | None | Maine |
| 45 | William S. Nason | 50 | son | None | New Hampshire |
| 46 | Frederick J. Nason | 45 | son | Salesman | California |
| 47 | William Sullivan THIS PERSON | 65 | head | None | Ireland |
| 48 | Mary Sullivan | 54 | wife | None | California |
| 49 | William J. Sullivan | 29 | son | Accountant | California |
| 50 | James F. Sullivan | 27 | son | Packer | California |
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)