LC
Lois Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Lois Clark across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents H & Beatrice — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Clark |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1918 |
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 Lois | Age | Birth yr |
|---|---|---|---|---|
| Robert Clark | Son | — | 23 | ~1917 |
| Beatrice Clark | Spouse | — | 46 | ~1894 |
| H Clark | Head | — | 49 | ~1891 |
| Lois Clark | Daughter | — | 22 | ~1918 |
Census Appearances
1920
Los Angeles, …
Other, age 1
Los Angeles, California · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Lois B |
| Relationship to Head | Granddaughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Daughter, age 12
Los Angeles, California · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 22
Los-Angeles-County, California · implied b. ~1918 — 4 household members
| Surname | Clark |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Highest Grade | C 3 |
| 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 Lois Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father H Clark (~0.92 confidence) and mother Beatrice Clark (~0.92 confidence) and father Samuel Beeching (~0.83 confidence) and mother Laura Beeching (~0.83 confidence). The pedigree spans 2 generations with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
H Clark
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Beatrice Clark
b. ~1894
Source mother
● Household
· direct · ~0.92
Father
Samuel Beeching
b. ~1871
Source mother>father
● Household
· direct · ~0.83
Mother
Laura Beeching
b. ~1871
Source mother>mother
● Household
· direct · ~0.83
This person
Anchor record
Lois Clark
Daughter · 1940 · age 22 · b. ~1918 · California
★ You are viewing this record
Sibling
Robert Clark
Sibling · 1940 · age 23
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
39 people indexed on this census page (nara:1940:m-t0627-00387-00125)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | H. Hugh Clark | 49 | Head | Collector | Nebraska |
| 2 | Beatrice Clark | 46 | Wife | — | Massachusetts |
| 3 | Robert Clark | 23 | Son | Escrow Clerk | California |
| 4 | Lois Clark THIS PERSON | 22 | Daughter | — | California |
| 5 | Lester Wiltse | 42 | Head | Proof Reader | New Jersey |
| 6 | Agnes Wiltse | 43 | Wife | — | New Jersey |
| 7 | Lester Jr. Wiltse | 17 | Son | — | California |
| 8 | Ruth Wiltse | 14 | Daughter | — | California |
| 9 | Kathryn Van Dike | 47 | Head | — | New Jersey |
| 10 | Watt Van Dike | None | Alice M. | — | H 1 |
| 11 | Helen T. Van Dike | 50 | Daughter | Secretary | North Dakota |
| 12 | Edward B. Markey | 36 | Head | Carpenter | California |
| 13 | Charlotte Markey | 37 | Wife | — | Ohio |
| 14 | Clara Winget | 54 | Wife | — | Texas |
| 15 | George W. Winget | 54 | Head | Policeman | New Jersey |
| 16 | Florence Winget | 20 | Daughter | Waitress | California |
| 17 | J. Ross Bracon | 45 | Head | — | Illinois |
| 18 | Ruth Bracon | 55 | Wife | — | Illinois |
| 19 | John P. Maich | 49 | Head | Policeman | Illinois |
| 20 | Margaret Maich | 14 | Daughter | — | California |
| 21 | Rita Button | 33 | Lodger | Typist | Washington |
| 22 | Charles Teft | 31 | Head | Attendant | Illinois |
| 23 | Lola Mae Teft | 26 | Wife | — | Arkansas |
| 24 | Beverly Teft | 4 | Daughter | — | California |
| 25 | Marlene Teft | 2 | Daughter | — | California |
| 26 | Kirk Morgan | 24 | Husband | Contractor | Alabama |
| 27 | Louise Morgan | 22 | Wife | Telephone Operator | Arkansas |
| 28 | Edward Bell | 50 | Head | Sales Engineer | Illinois |
| 29 | May Bell | 42 | Wife | — | Massachusetts |
| 30 | Lois Bell | 19 | Daughter | — | California |
| 31 | Edward Jr. Bell | 16 | Son | — | California |
| 32 | Donald A. Bell | 13 | Son | — | California |
| 33 | Robert Bell | 7 | Son | — | California |
| 34 | Lula R. Correa | 72 | Head | — | Colorado |
| 35 | Carrea K. Thompson | 49 | Daughter | Proprietor | Colorado |
| 36 | George Mcguell | 76 | Head | Salesman | Ohio |
| 37 | Edith Mcguell | 62 | Wife | — | Virginia |
| 38 | Clifford Ratliff | 24 | Head | — | West Virginia |
| 39 | Margaret Ratliff | 33 | Wife | — | — |
Related Census Records
Pedigree Summary
Lois + 1 sibling
Gen 1 · 2 parents
~0.92
Gen 2 · 2 grandparents
~0.83
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)