Robert Foster — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Butte-County, California

Our Model Tree links this Robert Foster across the 1920, 1930 and 1940 US Censuses in Butte-County, California (XGBoost, ~Confirmed), with identified parents William & Margaret — first a head (b.~1912), then head of a 3-person household.

Age 28 b. ~1912 Male Head Born: California Married

1940 Census Record Details

Census Year	1940
Location	Butte-County, California
Surname	Foster
Given Name	Robert L.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	28
Marital Status	Married
Birthplace	California
1935 Residence (County)	Butte
Additional Details
Occupation	30
Industry	molder helper
Class of Worker	Iron works
Highest Grade	H-1
Birth State	California
Birth Country	United States
Birthplace (normalized)	california
Occupation	30
Township / Ward	Chico Judicial Dist
Est. Birth Year	~1912

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 Robert	Age	Birth yr
Diana Foster	Daughter	—	1	~1939
Robert Foster	Head	—	28	~1912
Helen Foster	Spouse	—	23	~1917

Census Appearances

1920

Butte, California

Son, age 8

Butte, California · implied b. ~1912 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Foster
Given Name	Robert L.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	8
Marital Status	Single
Birthplace	California
Father's Birthplace	Alabama
Mother's Birthplace	California
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

1930

Butte, California

Son, age 18

Butte, California · implied b. ~1912 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Foster
Given Name	Robert L.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	18
Marital Status	Single
Birthplace	California
Father's Birthplace	Alabama
Mother's Birthplace	California
Occupation	Laborer
Industry	Iron Works
Class of Worker	W
Can Read/Write	Yes
Veteran	No
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

1940

Butte-County, California

Head, age 28

Butte-County, California · implied b. ~1912 — 3 household members

Surname	Foster
Given Name	Robert L.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	28
Marital Status	Married
Birthplace	California
1935 Residence (County)	Butte
Occupation	30
Industry	molder helper
Class of Worker	Iron works
Highest Grade	H-1
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

Model Tree

Model Tree available

Our Model Tree links Robert Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Foster (~0.92 confidence) and mother Margaret Foster (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

William Foster

b. ~1880

Source father

● Household · direct · ~0.92

Mother

Margaret Foster

b. ~1886

Source mother

● Household · direct · ~0.92

This person

Anchor record

Robert Foster

Head · 1940 · age 28 · b. ~1912 · 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 — Butte-County, California Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00192-00643)

Line	Name	Age	Relation	Occupation	Birthplace
1	M. Jr. Thomas	3	Son	—	California
2	Richard Thomas	1	Son	—	California
3	Jerry Thomas	21	Brother	0	Nebraska
4	Robert L. Foster THIS PERSON	28	Head	30	California
5	Helen J. Foster	23	Wife	0	California
6	Diana L. Foster	1	Daughter	—	California
7	Oran A. Huddleson	52	Head	40	Kansas
8	Ruby P. B. Huddleson	36	Wife	0	Missouri
9	Lois Jane Cline	13	Step Daughter	—	Missouri
10	Barbara A. Huddleson	8	Daughter	—	California
11	Everett C. Huddleson	5	Son	—	California
12	Major T. Fletcher	41	Head	54	California
13	Verna J. Fletcher	41	Wife	0	California
14	Barbara J. Fletcher	10	Daughter	—	California
15	Theodore Fletcher	9	Son	—	California
16	Patricia A. Fletcher	2	Daughter	—	California
17	Edward C. Carnes	68	Head	51	Texas
18	Belle H. Carnes	68	Wife	0	Illinois
19	Lloyd C. Newport	22	Head	40	Oklahoma
20	Vera B. Newport	19	Wife	0	Oklahoma
21	Raymond V. Newport	26	Head	44	California
22	Eda E. Newport	20	Wife	0	California
23	Sharon R. Newport	1	Daughter	—	California
24	Gott D. Ketcham	57	Head	22	Wisconsin
25	Lora Ketcham	47	Wife	0	Illinois
26	David A. Ketcham	9	Son	—	Washington
27	Paul Abrew	22	Head	40	New Mexico
28	Rosie Abrew	20	Wife	0	Kansas
29	Anita Abrew	3	Daughter	—	California
30	Alicia Abrew	2	Daughter	—	California
31	Ernest P. Waterman	51	Head	60	Arkan
32	Nellie M. Waterman	44	Wife	0	Nebraska
33	Fred H. Line	26	Head	24	Arkansas
34	Mirtie L. Line	22	Wife	0	Arkansas
35	Shirley L. Line	4	Daughter	—	Oklahoma
36	Ronnie L. Line	2	Son	—	Oklahoma
37	Leslie C. Mcdonald	55	Head	32	Arkansas
38	Emma G. Mcdonald	51	Wife	0	Arkansas
39	Edward Hunter	72	Head	0	California
40	Ralph Lammers	77	Head	0	Holland

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Pedigree Summary

Robert

Gen 1 · 2 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)

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