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Helen Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Helen Harris across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Lee & Leo — first a daughter (b.~1911), then head of a 6-person household.
Age 29
b. ~1911
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Harris |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Social Work Supervisor |
| Industry | County Welfare Dept. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Social Work Supervisor |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1911 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Harris | Daughter | — | 29 | ~1911 |
| Mildred Harris | Daughter | — | 27 | ~1913 |
| Leo Harris | Head | — | 63 | ~1877 |
| Clara Lanman | Other | — | 55 | ~1885 |
| Irving Harris | Son | — | 25 | ~1915 |
| Esther Harris | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Los Angeles, …
Daughter, age 9
Los Angeles, California · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Germany |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Daughter, age 20
Los Angeles, California · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Helen V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 29
Los-Angeles-County, California · implied b. ~1911 — 6 household members
| Surname | Harris |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Social Work Supervisor |
| Industry | County Welfare Dept. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| 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 Helen Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lee Harris (~0.92 confidence) and father Leo Harris (~0.92 confidence) and father Henry Harris (~0.92 confidence) and mother Esther Harris (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lee Harris
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Leo Harris
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Henry Harris
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Esther Harris
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Harris
Daughter · 1940 · age 29 · b. ~1911 · California
★ You are viewing this record
Sibling
Irving Harris
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Harris
Sibling · 1940 · age 27
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
40 people indexed on this census page (nara:1940:m-t0627-00409-00184)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gilbert M. Pfeiffer | 25 | Head | Salesman-Driver | New York |
| 2 | Barbara Pfeiffer | 21 | Wife | — | California |
| 3 | Suzanne Pfeiffer | 0 | Daughter | — | California |
| 4 | William P. Caswell | 52 | Head | Salesman | England |
| 5 | Beatrice P. Caswell | 61 | Wife | — | England |
| 6 | Hilda M. Moore | 34 | Daughter | Waitress | England |
| 7 | Gloria Moore | 10 | Grand-daughter | — | Canada-English |
| 8 | Derry Moore | 9 | Grand-son | — | California |
| 9 | Abraham C. Goertzen | 42 | Head | Real Estate Broker | Russia |
| 10 | Ends Here | None | BLOCK | — | — |
| 11 | Daniel K. Drake | 80 | Head | — | New York |
| 12 | Holley J. Drake | 48 | Daughter | Librarian | Colorado |
| 13 | Adelaide J. Brown | 56 | House-keeper | House Keeper | Canada-English |
| 14 | Leo Harris | 63 | Head | — | Germany |
| 15 | Esther H. Harris | 54 | Wife | — | California |
| 16 | Helen M. Harris THIS PERSON | 29 | Daughter | Social Work Supervisor | California |
| 17 | Mildred R. Harris | 27 | Daughter | Social Work Case Worker | California |
| 18 | Irving M. Harris | 25 | Son | Mechanic Arts Teacher | California |
| 19 | Clara A. Lanman | 55 | House Keeper | House Keeper | Missouri |
| 20 | Ernest H. Mintie | 40 | Head | Area Manager | California |
| 21 | Alta A. Mintie | 39 | Wife | — | Indiana |
| 22 | Fern Mintie | 17 | Daughter | — | California |
| 23 | Marlyn Mintie | 16 | Daughter | — | California |
| 24 | James Mintie | 14 | Son | — | California |
| 25 | Robert Mintie | 13 | Son | — | California |
| 26 | Dolores Mintie | 10 | Daughter | — | California |
| 27 | Harold Comlossy | 51 | Head | Salesman | Ohio |
| 28 | Janet Comlossy | 44 | Wife | — | Michigan |
| 29 | Janet Joy Comlossy | 16 | Daughter | — | Illinois |
| 30 | Harold Jr. Comlossy | 15 | Son | — | Illinois |
| 31 | Donald H. Clark | 37 | Head | Writer | New York |
| 32 | Susan C. Clark | 35 | Wife | — | Nebraska |
| 33 | Donald H. Jr. Clark | 6 | Son | — | New York |
| 34 | Peter R. Clark | 3 | Son | — | California |
| 35 | James F. Clark | 0 | Son | — | California |
| 36 | Tommie Gibson | 22 | Maid | House Keeper | Texas |
| 37 | Winfield S. Rowland | 41 | Head | Chiropractor | Minnesota |
| 38 | Genevieve Rowland | 42 | Wife | — | Connecticut |
| 39 | Winifred Rowland | 17 | Daughter | — | New York |
| 40 | John H. De Young | 56 | Head | Postal Clerk | Michigan |
Related Census Records
Pedigree Summary
Helen + 2 siblings
Gen 1 · 4 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)