Helen Cook — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Los-Angeles-County, California

Our Model Tree links this Helen Cook across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Jennie — first a daughter (b.~1891), then head of a 4-person household.

Age 49 b. ~1891 Female Daughter Born: California Married

1940 Census Record Details

Census Year	1940
Location	Los-Angeles-County, California
Surname	Cook
Given Name	Helen J.
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	49
Marital Status	Married
Birthplace	California
1935 Residence (City)	Los Angeles City
Additional Details
Class of Worker	0
Highest Grade	No 8
Birth State	California
Birth Country	United States
Birthplace (normalized)	california
Township / Ward	Los Angeles City
Est. Birth Year	~1891

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 Helen	Age	Birth yr
Virginia Cook	Other	—	22	~1918
Jennie Robinson	Head	—	67	~1873
Helen Cook	Daughter	—	49	~1891
Ernest Cook	Other	—	56	~1884

Census Appearances

1920

Los Angeles, …

Spouse, age 29

Los Angeles, California · implied b. ~1891 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cook
Given Name	Helen
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	29
Marital Status	Married
Birthplace	California
Father's Birthplace	Indiana
Mother's Birthplace	New York
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

1930

Los Angeles, …

Spouse, age 39

Los Angeles, California · implied b. ~1891 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cooke
Given Name	Helen R.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	California
Age at First Marriage	19
Father's Birthplace	Indiana
Mother's Birthplace	New York
Can Read/Write	Yes
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

1940

Los-Angeles-County, California

Daughter, age 49

Los-Angeles-County, California · implied b. ~1891 — 4 household members

Surname	Cook
Given Name	Helen J.
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	49
Marital Status	Married
Birthplace	California
1935 Residence (City)	Los Angeles City
Class of Worker	0
Highest Grade	No 8
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

Model Tree

Model Tree available

Our Model Tree links Helen Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Jennie Robinson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.

Show:

Gen 1 Parents confidence ≈ 0.92

Mother

Jennie Robinson

b. ~1873

Source mother

● Household · direct · ~0.92

This person

Anchor record

Helen Cook

Daughter · 1940 · age 49 · b. ~1891 · California

★ You are viewing this record

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

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-00401-00797)

Line	Name	Age	Relation	Occupation	Birthplace
41	Anna M. Christensen	47	Housekeeper	Housekeeping	Michigan
42	Carleton Smith	38	Head	Motion Picture	Colorado
43	Katherine B. Smith	37	Wife	—	Missouri
44	Arabella Smith	15	Daughter	—	California
45	Hazel Wooten	20	Housekeeper	Housekeeper	Mississippi
46	Jennie L. Robinson	67	Head	—	New York
47	Helen J. Cook THIS PERSON	49	Daughter	—	California
48	Ernest J. Cook	56	Son-in-law	Foreman Of Can Factory	Connecticut
49	Virginia Cook	22	Grand-Daughter	—	California
50	Margaret Bowen	38	Head	Cafeteria Worker	California
51	Ruth Bowen	10	Daughter	—	California
52	Paul Bowen	7	Son	—	California
53	Nirad R. Chowdhury	46	Head	Minister	India
54	Agnes Chowdhury	32	Wife	Assistant Minister	Colorado
55	Anil Chowdhury	7	Son	—	California
56	George Swenson	24	Lodger	Cement Finisher	Illinois
59	Ruth O. Verry	43	Head	—	Tennessee
60	Elizabeth Verry	22	Daughter	Switchboard Operator	Michigan
61	Verna L. Satler	47	Head	Apt House Manager	Missouri
62	Ellen Arnold	39	Sister	Cosmetic Saleswoman	Missouri
63	Lydia E. White	46	Head	Apt House Manager	Louisiana
64	Salma V. Wagner	27	Sister	Manicurist	Louisiana
65	Herbert H. Johnson	39	Head	Retail Clothing Salesman	Arkansas
66	Mildred A. Hoit	29	Head	Registered Nurse	Ohio
67	Opal Olds	37	Head	Stenographer	Missouri
68	Marjorie Avery Whaples	30	Head	Cosmetic Saleswoman	Missouri
69	Donalda R. Boyd	57	Head	Manager Of Mercantile	New York
70	Charles F. Boyd	56	Brother	Subdividing Land	New York
71	Eva Gertrude Hopkins	46	Head	Elementary Teacher	Canada
72	George W. Sayre	54	Head	Clerical	Illinois
73	Hazel Sayre	44	Wife	—	California
74	Marion S. Hunting	22	Head	Bookkeeper	Massachusetts
75	S. Hirsty	27	Husband	Clerk	Iowa
76	Maude Anna Hunting	54	Head	Fountain Manager	Iowa
77	Alma Reynolds	41	Head	High School Teacher	Iowa
78	Agnes F. Hayden	47	Head	Cashier	Iowa
79	Edward S. Challinor	52	Head	Railway Postal Clerk	Pennsylvania
80	Frederick Johnston	60	Head	Christian Science Practitioner	Illinois

Search for Helen Cook

All Helen Cook Census Records Discover Cook Family Tree

Pedigree Summary

Helen

Gen 1 · 1 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)

Report inaccurate data