Bertha Smith — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Bertha Smith across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 3-person household.

Age 58 b. ~1882 Female Spouse Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Los-Angeles-County, California
Surname	Smith
Given Name	Bertha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Azusa city
1935 Residence (County)	Los Angeles
Additional Details
Highest Grade	H 2
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Township / Ward	Azusa City
Est. Birth Year	~1882

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.

3 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Bertha	Age	Birth yr
Katherine Smith	Daughter	—	26	~1914
Cornelius Smith	Head	—	59	~1881
Bertha Smith	Spouse	—	58	~1882

Census Appearances

1920

Los Angeles, …

Spouse, age 35

Los Angeles, California · implied b. ~1885 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Smith
Given Name	Bertha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	Germany
Mother's Birthplace	Bavaria
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Los Angeles, …

Spouse, age 47

Los Angeles, California · implied b. ~1883 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Smith
Given Name	Bertha A
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	28
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Los-Angeles-County, California

Spouse, age 58

Los-Angeles-County, California · implied b. ~1882 — 3 household members

Surname	Smith
Given Name	Bertha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Azusa city
1935 Residence (County)	Los Angeles
Highest Grade	H 2
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

Our Model Tree links Bertha Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Bertha Smith

Spouse · 1940 · age 58 · b. ~1882 · California

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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

40 people indexed on this census page (nara:1940:m-t0627-00237-00353)

Line	Name	Age	Relation	Occupation	Birthplace
41	Gwendolyn Jordan	9	Daughter	—	California
42	Oma W. Ross	37	Head	Clerk	Washington
43	Anna M. Ross	32	Wife	Grader	North Dakota
44	Fred Smith	22	Head	Welder	Illinois
45	Lorraine Smith	18	Wife	—	Alabama
46	Dixie Lee Smith	0	Daughter	—	California
47	Melvin M. Milham	30	Head	Statistician	Oklahoma
48	Marie Milham	26	Wife	—	Kentucky
49	Peggy Elaine Milham	3	Daughter	—	Oklahoma
50	Harry Everett Milham	1	Son	—	California
51	Guy M. Whittick	32	Lodger	Domestic	Oklahoma
52	A. J. Buchanan	80	Father-in-law	—	Kentucky
53	Beatrice Buchanan	42	Sister-in-law	Clerk	Kentucky
54	W. David Gillespie	70	Head	—	Mississippi
55	Charlotte H. Gillespie	62	Wife	Clerk	New Hampshire
56	Leroy Clark	60	Head	Proprietor	Iowa
57	Mary Clark	46	Wife	—	Ohio
58	L. D. Bonner	58	Head	Nurse	Tennessee
59	Louisa Zerell	72	Head	—	Germany
60	George Zerell	52	Son	Pressman	New York
61	William Zerell	47	Son	Superintendent	California
62	Frederick Zerell	40	Son	Fruit Checker	New York
63	Lela Gruell	37	Daughter	Packer	California
64	Ella A. Sheppard	73	Head	—	Arkansas
65	Cornelius Smith	59	Head	Secretary	California
66	Bertha Smith THIS PERSON	58	Wife	—	Ohio
67	Katherine Smith	26	Daughter	Teacher	California
68	Stanley D. Mccaslin	31	Head	Funeral Director	New York
69	Harriet R. Mccaslin	31	Wife	Teacher	South Dakota
70	Mary B. Brown	21	Servant	Domestic	Arkansas
71	Alice Sampson	54	Head	—	Massachusetts
72	Kenneth Sampson	32	Son	Agent	Connecticut
73	Roy Sampson	31	Son	Driver	Connecticut
74	Doris Sampson	24	Daughter	Secretary	Connecticut
75	Emile Lipp	52	Head	Truck Driver	California
76	Mabel Lipp	42	Wife	—	Illinois
77	Albert Lipp	25	Son	—	California
78	Judith Lipp	15	Daughter	—	California
79	Guy C. Ewart	59	Head	Mail Messenger	Indiana
80	Blanche A. Ewart	57	Wife	Agent	Indiana

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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)

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