AS
Ann Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Ann Smith across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Smith |
| Given Name | Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 576 |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Waitress |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1910 |
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 1940 census.
| Name | Relation to head | Relative to Ann | Age | Birth yr |
|---|---|---|---|---|
| Annette Smith | Head | — | 61 | ~1879 |
| Pauline Smith | Daughter | — | 35 | ~1905 |
| Josephine Smith | Daughter | — | 28 | ~1912 |
| Ann Smith | Daughter | — | 30 | ~1910 |
Census Appearances
1930
San Francisco, …
Daughter, age 20
San Francisco, California · implied b. ~1910 — 40 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Annabel |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | California |
| Occupation | Student Nurse |
| Industry | Hospital |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Daughter, age 30
San-Francisco-County, California · implied b. ~1910 — 4 household members
| Surname | Smith |
| Given Name | Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 576 |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| 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 Ann Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ann Smith
Daughter · 1940 · age 30 · b. ~1910 · California
★ You are viewing this record
Sibling
Josephine Smith
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Smith
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
40 people indexed on this census page (nara:1940:m-t0627-00302-00481)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frieda Cahill | 40 | Wife | H | California |
| 42 | Geraldine Cahill | 5 | Daughter | — | California |
| 43 | Dolores Cahill | 4 | Daughter | — | California |
| 44 | Otto Rispi | 48 | Head | Painter | Sweden |
| 45 | Signe Rispi | 40 | Wife | H | Norway |
| 46 | Joseph Sanchez | 32 | Head | Truck Driver | Spain |
| 47 | Cecelia Sanchez | 27 | Wife | — | Hawaii |
| 48 | Dolores Sanchez | 10 | Daughter | — | California |
| 49 | Fritz Sterner | 51 | Head | Stevedore | Sweden |
| 50 | Annette Smith | 61 | Head | H | Poland |
| 51 | Pauline Smith | 35 | Daughter | Housework | Ohio |
| 52 | Ann Smith THIS PERSON | 30 | Daughter | Waitress | California |
| 53 | Josephine Smith | 28 | Daughter | — | California |
| 54 | Dion Gehlen | 51 | Head | Carpenter | Iowa |
| 55 | Margaret Gehlen | 51 | Wife | H | Ireland |
| 56 | Mary Gehlen | 11 | Daughter | — | California |
| 57 | Paul Gehlen | 10 | Son | — | California |
| 58 | Margaret Gehlen | 9 | Daughter | — | California |
| 59 | Barbara Gehlen | 4 | Daughter | — | California |
| 60 | Laurel Watts | 27 | Head | Sheet Metal | Utah |
| 61 | Doris Watts | 24 | Wife | H | Nevada |
| 62 | Jimmie Watts | 0 | Son | — | California |
| 63 | Fred Berry | 24 | Lodger | Helper | Nevada |
| 64 | Florence Watts | 17 | Lodger | — | Utah |
| 65 | Eugene Allred | 33 | Lodger | Bell Hop | Utah |
| 66 | Anthony Villanova | 39 | Head | Laborer | Italy |
| 67 | Helen Villanova | 38 | Wife | Clerk | New Jersey |
| 68 | Richard Villanova | 18 | Son | — | New Jersey |
| 69 | Dorothy Villanova | 14 | Daughter | — | Illinois |
| 70 | Winifred Villanova | 13 | Daughter | — | California |
| 71 | Amos Amiot | 59 | Head | Carpenter | Michigan |
| 72 | Mary Amiot | 59 | Wife | H | California |
| 73 | Mark Meschi | 37 | Head | Gardener | Italy |
| 74 | Bernice Meschi | 36 | Wife | Sewing | Italy |
| 75 | Gloria Meschi | 12 | Daughter | — | California |
| 76 | Robert Bell | 41 | Head | Gardener | New York |
| 77 | John Bell | 39 | Boarder | Houseman | Ireland |
| 78 | Joseph Valdez | 47 | Head | Special Patrol Police | California |
| 79 | Eleanor Valdez | 41 | Wife | H | California |
| 80 | Robert Valdez | 20 | Son | Car Apprentice | California |
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)