DS
David Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Butte-County, California
Our Model Tree links this David Smith across the 1920, 1930 and 1940 US Censuses in Butte-County, California (XGBoost, ~Confirmed), with identified parents David & Pearl — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Butte-County, California |
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Gridley Judicial |
| 1935 Residence (County) | Butte |
| Additional Details | |
| Occupation | Labour |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 350 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same home |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Labour |
| Township / Ward | Gridley Judicial |
| Est. Birth Year | ~1916 |
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 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Eunice Smith | Daughter | — | 22 | ~1918 |
| Dan Smith | Head | — | 67 | ~1873 |
| Rena Smith | Other | — | 22 | ~1918 |
| David Smith | Son | — | 24 | ~1916 |
| Elmer Smith | Son | — | 27 | ~1913 |
| Vernon Smith | Son | — | 16 | ~1924 |
Census Appearances
1920
Butte, California
Son, age 3
Butte, California · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Butte, California
Son, age 14
Butte, California · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | David A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Butte-County, California
Son, age 24
Butte-County, California · implied b. ~1916 — 6 household members
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Gridley Judicial |
| 1935 Residence (County) | Butte |
| Occupation | Labour |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 350 |
| Highest Grade | Hs 4 |
| 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 David Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Smith (~0.92 confidence) and mother Pearl Smith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Smith
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Pearl Smith
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Smith
Son · 1940 · age 24 · b. ~1916 · California
★ You are viewing this record
Sibling
Elmer Smith
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vernon Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eunice Smith
Sibling · 1940 · age 22
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 — Butte-County, California
Open full size
1940 US Federal Census — Butte-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00193-00138)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Coy Powell-Evan | 12 | Son | — | Idaho |
| 42 | Ralph Gray | 11 | Son | — | Idaho |
| 43 | Ledra Powell | 3 | Daughter | — | California |
| 44 | John Schumer | 52 | Head | Farmer | California |
| 45 | Helen Schumer | 48 | Wife | — | California |
| 46 | Walter Brady | 24 | Son | Mechanic | New Mexico |
| 47 | Margaret Brady | 28 | Daughter in law | — | California |
| 48 | Colleen Brady | 1 | Granddaughter | — | California |
| 49 | Paul Hiller | 58 | Head | Farmer | California |
| 50 | Ida Hiller | 45 | Wife | — | California |
| 51 | Sam Casey | 54 | Head | — | Texas |
| 52 | Jane Casey | 52 | Wife | — | New Mexico |
| 53 | Dorothy Casey | 29 | Daughter | — | Texas |
| 54 | William Burbank | 35 | Head | Farmer | Utah |
| 55 | Marjorie Burbank | 30 | Wife | — | Oregon |
| 56 | William David Burbank | 4 | Son | — | California |
| 57 | Raymond Burbank | 1 | Son | — | California |
| 58 | John T. Rabe | 59 | Head | Photographer | Germany |
| 59 | Mary E. Rabe | 53 | Wife | — | Idaho |
| 60 | Elta Justeson | 25 | Daughter | — | California |
| 61 | Edith Justeson | 26 | Daughter | — | California |
| 62 | Melvin Justeson | 18 | Son | — | California |
| 63 | Dan Smith | 67 | Head | Farmer | Utah |
| 64 | Elmer Smith | 27 | Son | Farmer | California |
| 65 | Eunice Smith | 22 | Daughter | Bookkeeper | California |
| 66 | Vernon Smith | 16 | Son | — | California |
| 67 | David Smith THIS PERSON | 24 | Son | Labour | California |
| 68 | Rena Smith | 22 | Daughter in law | — | South Dakota |
| 69 | Arthur Richardson | 55 | Head | Farmer | California |
| 70 | Georgia Richardson | 51 | Wife | — | California |
| 71 | Ernest Holstead | 69 | Laborer | Dairyman | Idaho |
| 72 | John B. Hofworth | 69 | Head | Dairyman | Idaho |
| 73 | Arletta Hofworth | 67 | Wife | — | Utah |
| 74 | Son Lester | None | M | Filling Station | — |
| 75 | Franklin Powers | 56 | Head | Painter | Utah |
| 76 | Matilda Powers | 55 | Wife | — | Norway |
| 77 | Carl Powers | 26 | Head | Filling Station | Utah |
| 78 | Gladys Powers | 25 | Wife | — | California |
| 79 | Robert Powers | 7 | Grandson | — | California |
| 80 | Chester Summers | 31 | Head | Blacksmith | Oklahoma |
Related Census Records
Pedigree Summary
David + 3 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)