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Dorothy Dunn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Dorothy Dunn across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Dunn |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Claremont City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | Claremont City |
| Est. Birth Year | ~1922 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Dunn | Daughter | — | 18 | ~1922 |
| Leland Dunn | Head | — | 42 | ~1898 |
| Martha Dunn | Daughter | — | 13 | ~1927 |
| John Dunn | Son | — | 21 | ~1919 |
| Zula Dunn | Spouse | — | 42 | ~1898 |
| Mary Dunn | Daughter | — | 7 | ~1933 |
| Ray Dunn | Son | — | 17 | ~1923 |
Census Appearances
1930
Los Angeles, …
Daughter, age 8
Los Angeles, California · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Dorothy J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Los-Angeles-County, California
Daughter, age 18
Los-Angeles-County, California · implied b. ~1922 — 7 household members
| Surname | Dunn |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Claremont City |
| 1935 Residence (County) | Los Angeles |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Dorothy Dunn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Dorothy Dunn
Daughter · 1940 · age 18 · b. ~1922 · California
★ You are viewing this record
Sibling
Ray Dunn
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Dunn
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Dunn
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dunn
Sibling · 1940 · age 21
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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
12 people indexed on this census page (nara:1940:m-t0627-00255-00065)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida E Ashley | 82 | Grandmother | — | Wisconsin |
| 2 | Leland Dunn | 42 | Head | Ranch Foreman | Kentucky |
| 3 | Zula Dunn | 42 | Wife | Poultry Lady | Tennessee |
| 4 | John Dunn | 21 | Son | Operator | Tennessee |
| 5 | Dorothy Dunn THIS PERSON | 18 | Daughter | — | Tennessee |
| 6 | Ray Dunn | 17 | Son | — | California |
| 7 | Martha Dunn | 13 | Daughter | — | California |
| 8 | Mary W. Dunn | 7 | Daughter | — | California |
| 9 | A. J. Birdy | 66 | Head | Teacher | New York |
| 10 | Helen Birdy | 56 | Wife | Teacher | New York |
| 11 | John Birdy | 24 | Son | Farmer | California |
| 12 | Marjorie Birdy | 22 | Daughter | — | 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)