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Barbara Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Mateo-County, California
Our Model Tree links this Barbara Davis across the 1930 and 1940 US Censuses in San-Mateo-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Mateo-County, California |
| Surname | Davis |
| Given Name | Barbara |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Daly City |
| 1935 Residence (County) | San Mateo |
| Additional Details | |
| Industry | o |
| Class of Worker | 220 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Daly City |
| Est. Birth Year | ~1925 |
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 1940 census.
| Name | Relation to head | Relative to Barbara | Age | Birth yr |
|---|---|---|---|---|
| Leroy Davis | Head | — | 45 | ~1895 |
| Fred Davis | Son | — | 19 | ~1921 |
| Ethel Davis | Spouse | — | 43 | ~1897 |
| Leroy Davis | Son | — | 9 | ~1931 |
| Stanley Davis | Son | — | 5 | ~1935 |
| Shirley Davis | Daughter | — | 12 | ~1928 |
| Barbara Davis | Daughter | — | 15 | ~1925 |
Census Appearances
1930
San Francisco, …
Daughter, age 4
San Francisco, California · implied b. ~1926 — 41 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Montana |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Mateo-County, California
Daughter, age 15
San-Mateo-County, California · implied b. ~1925 — 7 household members
| Surname | Davis |
| Given Name | Barbara |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Daly City |
| 1935 Residence (County) | San Mateo |
| Industry | o |
| Class of Worker | 220 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| 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 Barbara Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Barbara Davis
Daughter · 1940 · age 15 · b. ~1925 · California
★ You are viewing this record
Sibling
Stanley Davis
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leroy Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Davis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Davis
Sibling · 1940 · age 19
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-Mateo-County, California
Open full size
1940 US Federal Census — San-Mateo-County, California
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00329-00274)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Arthur Ledterman | 17 | son | — | Nebraska |
| 42 | Robert Allen Ledterman | 10 | son | — | California |
| 43 | Paul Tielle | 35 | head | Automobile Mechanic | Iowa |
| 44 | Esther Tielle | 26 | wife | — | California |
| 45 | Richard Tielle | 3 | son | — | California |
| 47 | Leroy Davis | 45 | head | Truck Driver | Kansas |
| 48 | Ethel Davis | 43 | wife | — | California |
| 49 | Fred Davis | 19 | son | Dishwasher | California |
| 50 | Barbara Davis THIS PERSON | 15 | daughter | — | California |
| 51 | Shirley Davis | 12 | daughter | — | California |
| 52 | Leroy Davis | 9 | son | — | California |
| 53 | Stanley Davis | 5 | son | — | California |
| 54 | Harry Walters | 55 | head | Carpenter | England |
| 55 | Jean Walters | 58 | wife | — | Scotland |
| 56 | Arvelle W. Chapin | 44 | head | Cab Driver | North Dakota |
| 57 | Ruby Chapin | 40 | wife | — | Iowa |
| 58 | Olive Chapin | 21 | daughter | Comptometer Operator | North Dakota |
| 59 | Eleanor Chapin | 19 | daughter | New Worker | North Dakota |
| 60 | William N. Allard | 22 | lodger | Gripman | California |
| 61 | Harrison Suterlee | 21 | lodger | Sheet Metal Worker | Kansas |
| 62 | Frank Dillon | 30 | head | Grocery Store Manager | Arkansas |
| 63 | Margaret Dillon | 25 | wife | — | California |
| 64 | Robert Dillon | 0 | son | — | California |
| 65 | Herman Lorenz | 31 | head | Driver Milk Truck | California |
| 66 | Esther Lorenz | 28 | wife | — | Washington |
| 68 | Herbert Veltman | 43 | head | Painter | Colorado |
| 69 | Jeannette Veltman | 39 | wife | — | Wisconsin |
| 70 | Herbert Jr. Veltman | 5 | son | — | California |
| 71 | Ned Anthony Veltman | 1 | son | — | California |
| 72 | George Robischung | 36 | head | Switchman | Texas |
| 73 | Marie Robischung | 36 | wife | — | Washington |
| 74 | Beverly Robischung | 17 | daughter | — | Washington |
| 75 | Margaret Robischung | 10 | daughter | — | California |
| 76 | Marie Robischung | 6 | daughter | — | California |
| 77 | Margaret J. Robischung | 62 | mother | — | Texas |
| 79 | Charles B. Clement | 38 | head | Automobile Mechanic | California |
| 80 | Lillian B. Clement | 34 | wife | — | Maryland |
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)