WA
William Abbott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this William Abbott across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 3-person household.
Age 44
b. ~1896
Male
Head
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Abbott |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Lead |
| 1935 Residence (County) | S. Dakota |
| Additional Details | |
| Hours Worked | 54 |
| Income (1939) | 1150 |
| Highest Grade | C 2 |
| 1935 Residence | S. Dakota |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1896 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Doris Abbott | Spouse | — | 50 | ~1890 |
| William Abbott | Head | — | 44 | ~1896 |
| William Abbott | Son | — | 22 | ~1918 |
Census Appearances
1920
San Francisco, …
Other, age 26
San Francisco, California · implied b. ~1894 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Abbott |
| Given Name | William |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | un |
| Birthplace | Montana |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Salesman |
| Industry | Hardware |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
San Francisco, …
Head, age 37
San Francisco, California · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Abbott |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Montana |
| Naturalization Status | Naturalized |
| Age at First Marriage | 29 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Radio Set | R |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
San-Francisco-County, California
Head, age 44
San-Francisco-County, California · implied b. ~1896 — 3 household members
| Surname | Abbott |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Lead |
| 1935 Residence (County) | S. Dakota |
| Hours Worked | 54 |
| Income (1939) | 1150 |
| Highest Grade | C 2 |
| 1935 Residence | S. Dakota |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Abbott across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Abbott
Head · 1940 · age 44 · b. ~1896 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00308-00522)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Mitchell | 62 | Head | — | California |
| 2 | Arnold Leschot | 76 | Head | — | Switzerland |
| 3 | Florence V. Leschot | 58 | Wife | — | France |
| 4 | William Abbott THIS PERSON | 44 | Head | — | Montana |
| 5 | Doris Abbott | 50 | Wife | — | California |
| 6 | William Abbott | 22 | Son | — | California |
| 7 | Samuel Keys | 68 | Head | Warehouseman | Ohio |
| 8 | Mary A. Keys | 65 | Wife | — | Missouri |
| 9 | Catherine King | 61 | Head | — | California |
| 10 | Lara Glass | 48 | Head | Sewing | Illinois |
| 11 | William C. Budd | 61 | Head | Engineer | Ohio |
| 12 | Nancy Budd | 59 | Wife | — | California |
| 13 | Vera Stevens | 79 | Head | — | California |
| 14 | William H. Cote | 50 | Head | Asphalt Worker | California |
| 15 | Louise Cote | 39 | Wife | — | California |
| 16 | Arthur Edward La Voie | 27 | Head | Orderly | California |
| 17 | Alice La Voie | 27 | Wife | — | California |
| 19 | Edith Bryn | 54 | Head | Chemist | Sweden |
| 20 | Anna Birkholz | 63 | Head | — | Germany |
| 21 | Lillie Roark | 56 | Head | Board Marker | California |
| 22 | Ed Roark | 32 | Roomer | Board Marker | California |
| 23 | Charles Campbell | 58 | Head | Packer | California |
| 24 | Max Blanche Campbell | 51 | Wife | — | California |
| 25 | John D. Coffman | 40 | Head | Guard | Arkansas |
| 26 | Lucille Coffman | 32 | Wife | — | Washington |
| 27 | Dorothy Coffman | 2 | Daughter | — | California |
| 28 | George H. Jones | 68 | Head | — | England |
| 29 | Henry Schuerling | 81 | Roomer | — | Germany |
| 30 | George Fabiano | 30 | Head | — | — |
| 31 | George Mantell | 62 | Head | Shoemaker | Ohio |
| 32 | Hattie Mantell | 66 | Wife | — | New Orleans |
| 34 | George Fabiano | 30 | Head | Carpenter | California |
| 35 | Randall Williams | 23 | Roomer | Apprentice Carpenter | California |
| 36 | Arthur Newman | 23 | Roomer | Apprentice Carpenter | Montana |
| 37 | Victoria Olea | 31 | Head | Packer | Mexico |
| 38 | Rene Olea | 16 | Son | — | Mexico |
| 39 | Anthony Olea | 14 | Son | — | Mexico |
| 40 | Gus Olea | 27 | Brother | Pantry Asst. | Mexico |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)