Mary Griffin — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Griffin across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 2-person household.

Age 65 b. ~1875 Female Head Born: Norway Widowed

1940 Census Record Details

Census Year	1940
Location	Los-Angeles-County, California
Surname	Griffin
Given Name	Mary
Relationship to Head	head
Sex	F
Color / Race	White
Age	65
Marital Status	Widowed
Birthplace	Norway
1935 Residence (City)	El Segundo City
1935 Residence (County)	Los Angeles
Naturalization Status	Naturalized
Additional Details
Occupation	none
Industry	none
Income (1939)	0
Highest Grade	8
1935 Residence	Same place
Birth Country	Norway
Birthplace (normalized)	norway
Township / Ward	El Segundo City
Est. Birth Year	~1875

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Griffin	Head	—	65	~1875
Andrew Griffin	Son	—	27	~1913

Census Appearances

1920

Los Angeles, …

Spouse, age 45

Los Angeles, California · implied b. ~1875 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Griffin
Given Name	Marie
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Norway
Father's Birthplace	Norwegian
Mother's Birthplace	Norway
Occupation	Yes
Industry	Yes
Can Read	Norway
Can Write	Norwegian
Speaks English	Yes
Mother Tongue	Norwegian
Home Free/Mortgaged	1920
Birth Country	Norway
Year of Naturalization	1914
Birthplace (normalized)	norway

1930

Los Angeles, …

Other, age 55

Los Angeles, California · implied b. ~1875 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Griffin
Given Name	Mary A
Relationship to Head	Mother
Sex	F
Color / Race	White
Age	55
Marital Status	Divorced
Birthplace	Norway
Naturalization Status	Naturalized
Year of Immigration	1911
Father's Birthplace	Norway
Mother's Birthplace	Norway
Can Read/Write	Yes
Mother Tongue	Norwegian
Birth Country	Norway
Birthplace (normalized)	norway

1940

Los-Angeles-County, California

Head, age 65

Los-Angeles-County, California · implied b. ~1875 — 2 household members

Surname	Griffin
Given Name	Mary
Relationship to Head	head
Sex	F
Color / Race	White
Age	65
Marital Status	Widowed
Birthplace	Norway
1935 Residence (City)	El Segundo City
1935 Residence (County)	Los Angeles
Naturalization Status	Naturalized
Occupation	none
Industry	none
Income (1939)	0
Highest Grade	8
1935 Residence	Same place
Birth Country	Norway
Birthplace (normalized)	norway

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Griffin

Head · 1940 · age 65 · b. ~1875 · 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-t0627-00233-00079)

Line	Name	Age	Relation	Occupation	Birthplace
41	Davis, Vivian Davis	30	wife	None	Michigan
42	Davis, Glenn Davis	11	son	—	Michigan
43	Davis, Allyn Davis	9	son	—	Michigan
44	Rodney Robinson	20	brother-in-law	Fusilage Assembler	Michigan
45	Walter B. Heller	46	head	Asst. Foreman Acid Department	New York
46	Lisle Heller	37	wife	None	Utah
47	David Yarter	56	head	—	Iowa
48	Robert Yarter	60	brother	—	Iowa
49	Gus Wentzel	69	head	Plasterer	Iowa
50	Myrtle A. Wentzel	58	wife	None	Illinois
51	Mary Griffin THIS PERSON	65	head	None	Norway
52	Andrew B. Griffin	27	son	Experimental Laboratory	California
53	Edgar R. Tyler	38	head	Oil Inspector	California
54	Lucille Tyler	39	wife	None	Kansas
55	H. Robert Tyler	11	son	—	California
56	Dorothy L. Tyler	8	daughter	—	California
57	Harriet Lawler	57	head	Clerk	Iowa
58	Elizabeth Ecoff	50	partner	None	United States
59	Harold Greenwood	28	head	Maintenance	Colorado
60	Elvina Greenwood	27	wife	None	Wisconsin
61	Charlotte Greenwood	3	daughter	—	California
62	Roger Greenwood	0	son	—	California
63	Ray Vicle	37	head	Pressure Still Operator	Pennsylvania
64	Frances Vicle	34	wife	None	Pennsylvania
65	Sarah Vicle	13	daughter	—	Pennsylvania
66	Meta Jean Vicle	7	daughter	—	California
67	Olen Lowe	44	head	Pressure Stillman	Missouri
68	Dorothy Lowe	40	wife	None	Missouri
69	Elizabeth Ann Lowe	19	daughter	Personnel Clerk	Missouri
70	Jean Lowe	11	daughter	—	California
71	John Lowe	8	son	—	California
72	Linda Lowe	5	daughter	—	California
73	Xenia Wooldridge	43	head	Cook	Illinois
74	Edward Wooldridge	18	son	None	Colorado
75	Eileen Wooldridge	16	daughter	None	California
76	George S. Neal	74	head	None	England
77	Leslie Murray	63	lodger	None	England
78	Edward Mitchell	24	head	Engine Operator	Louisiana
79	Dorothy Mitchell	32	wife	None	Wisconsin
80	Joanne Lee Mitchell	7	daughter	—	California

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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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