Grace Smith — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Grace Smith across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 4-person household.

Age 33 b. ~1907 Female Spouse Born: Colorado Married

1940 Census Record Details

Census Year	1940
Location	Los-Angeles-County, California
Surname	Smith
Given Name	Grace
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Colorado
1935 Residence (City)	LOS ANGELES
1935 Residence (County)	LOS ANGELES
Additional Details
Hours Worked	0
Income (1939)	0
Highest Grade	Hs 4
1935 Residence	Same place
Birth State	Colorado
Birth Country	United States
Birthplace (normalized)	colorado
Township / Ward	Los Angeles
Est. Birth Year	~1907

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 Grace	Age	Birth yr
Betty Smith	Daughter	—	15	~1925
Robert Smith	Head	—	28	~1912
Richard Smith	Son	—	10	~1930
Grace Smith	Spouse	—	33	~1907

Census Appearances

1920

Los Angeles, …

Other, age 11

Los Angeles, California · implied b. ~1909 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Smith
Given Name	Grace
Relationship to Head	Granddaughter
Sex	F
Color / Race	White
Age	11
Marital Status	Single
Birthplace	Colorado
Father's Birthplace	Colorado
Mother's Birthplace	Ohio
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Colorado
Birth Country	United States
Birthplace (normalized)	colorado

1930

Los Angeles, …

Other, age 22

Los Angeles, California · implied b. ~1908 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Smith
Given Name	Grace M
Relationship to Head	grand daughter
Sex	F
Color / Race	White
Age	22
Marital Status	Single
Birthplace	Colorado
Father's Birthplace	Colorado
Mother's Birthplace	Ohio
Occupation	saleslady
Industry	dept store
Class of Worker	W
Can Read/Write	Yes
Birth State	Colorado
Birth Country	United States
Birthplace (normalized)	colorado

1940

Los-Angeles-County, California

Spouse, age 33

Los-Angeles-County, California · implied b. ~1907 — 4 household members

Surname	Smith
Given Name	Grace
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Colorado
1935 Residence (City)	LOS ANGELES
1935 Residence (County)	LOS ANGELES
Hours Worked	0
Income (1939)	0
Highest Grade	Hs 4
1935 Residence	Same place
Birth State	Colorado
Birth Country	United States
Birthplace (normalized)	colorado

Model Tree

Linked across censuses

Our Model Tree links Grace 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

Grace Smith

Spouse · 1940 · age 33 · b. ~1907 · 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-t0627-00401-00949)

Line	Name	Age	Relation	Occupation	Birthplace
1	Milton Rohlfing	36	Head	Manager	Illinois
2	Mary Rohlfing	37	Wife	—	Missouri
3	Bob Mahoney	32	Head	Bookmaker	Colorado
4	Dorothy Mahoney	26	Wife	—	Kentucky
5	Blanche Bowling	52	Head	Precincter	Colorado
6	Benton M Bowling	32	Son	Salesman	Colorado
7	Myrtle Nesseth	44	Head	Saleswoman	Minnesota
8	Elsie M Collier	48	Lodger	Practical Nurse	Michigan
9	Joshua Keyser	35	Head	Partner	Poland
10	Minnie Keyser	30	Wife	Saleswoman	Minnesota
11	Irving Keyser	34	Brother	Partner	Poland
12	Robert Nawi	53	Head	Salesman	Arabia
13	Alke Morton	36	Head	Cashier	Arizona
14	Robert A Hall	49	Head	Patrolman	South Dakota
15	Adeline W Barker	57	Head	Owner	Wisconsin
16	Josephine Burke	54	Lodger	Owner	Washington
17	Dorothy Matchette	14	Lodger	—	Washington
18	Alice Armstrong	34	Head	Secretarial Bookkeeping	Ohio
19	Vincent Keilman	29	Head	Salesman	Minnesota
20	Gladys Keilman	29	Wife	Secretary	Minnesota
21	Vincent Ii Keilman	4	Son	—	California
22	James V Benbow	24	Head	Mechanic	Indiana
23	Fred Mills	34	Lodger	Mechanic	Michigan
24	Rose Tulchiner	41	Head	Owner	Russia
25	Lillian Tulchiner	22	Daughter	Laboratory Technician	New York
26	Ruth Harris	29	Head	Bookkeeper	Pennsylvania
27	Howard	None	Head	—	—
28	Seperately Showing	29	EVELYN	—	LINE
29	Arthur Gregory	35	Head	Elec Mechanic	Washington
30	Mildred Gregory	34	Wife	Manager	California
31	Lillian Hitchcock	35	Head	Owner & Mgr.	Illinois
32	Robert Smith	28	Head	Owner	Indiana
33	Grace Smith THIS PERSON	33	Wife	—	Colorado
34	Betty Smith	15	Daughter	—	California
35	Richard Smith	10	Son	—	California
36	Charles T Volland	28	Head	Attendant Filling Sta.	Iowa
37	Ilene Volland	29	Wife	Nursing	Wisconsin
38	Elizabeth H Smith	23	Head	Stenographer	Washington
39	Emma Hartshorne	45	Head	Manager	Nebraska
40	Dorothy B Egbert	35	Head	Saleswoman	Illinois

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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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