Mary Lopez — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Harrison-County, West Virginia

Our Model Tree links this Mary Lopez across the 1930 and 1940 US Censuses in Harrison-County, West Virginia (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 9-person household.

Age 44 b. ~1896 Female Spouse Born: Italy Married

1940 Census Record Details

Census Year	1940
Location	Harrison-County, West Virginia
Surname	Lopez
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Italy
1935 Residence (City)	Clarksburg
1935 Residence (County)	Harrison
Naturalization Status	Alien
Additional Details
Occupation	H
Industry	House
Income (1939)	0
Highest Grade	No 0
1935 Residence	Same place
Birth Country	Italy
Birthplace (normalized)	italy
Occupation	H
Township / Ward	Clarksburg
Est. Birth Year	~1896

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Sam Lopez	Head	—	46	~1894
Mary Lopez	Spouse	—	44	~1896
Tom Lopez	Son	—	19	~1921
Frank Lopez	Son	—	21	~1919
Rose Lopez	Daughter	—	22	~1918
Russell Lopez	Son	—	17	~1923
John Lopez	Son	—	23	~1917
Marie Lopez	Daughter	—	9	~1931
Marguerite Lopez	Daughter	—	15	~1925

Census Appearances

1930

Harrison, West …

Other, age 33

Harrison, West Virginia · implied b. ~1897 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Lopez
Given Name	Mary J.
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Italy
Naturalization Status	Naturalized
Year of Immigration	1908
Age at First Marriage	17
Father's Birthplace	Italy
Mother's Birthplace	Italy
Can Read/Write	Yes
Mother Tongue	Italian
Birth Country	Italy
Birthplace (normalized)	italy

1940

Harrison-County, West …

Spouse, age 44

Harrison-County, West Virginia · implied b. ~1896 — 9 household members

Surname	Lopez
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Italy
1935 Residence (City)	Clarksburg
1935 Residence (County)	Harrison
Naturalization Status	Alien
Occupation	H
Industry	House
Income (1939)	0
Highest Grade	No 0
1935 Residence	Same place
Birth Country	Italy
Birthplace (normalized)	italy

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Lopez

Spouse · 1940 · age 44 · b. ~1896 · West Virginia

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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 — Harrison-County, West Virginia Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-04408-00060)

Line	Name	Age	Relation	Occupation	Birthplace
41	Mary Imperial	31	Wife	H	Italy
42	James Imperial	17	Son	S	W. Va.
43	Frank Imperial	15	Son	S	W. Va.
44	Sam Imperial	13	Son	S	W. Va.
45	Patsy Imperial	11	Son	S	W. Va.
46	Carmella Imperial	1	Daughter	—	W. Va.
47	Sam Lopez	46	Head	U	Italy
48	Mary Lopez THIS PERSON	44	Wife	H	Italy
49	John Lopez	23	Son	Collector	W. Va.
50	Rose Lopez	22	Daughter	H	W. Va.
51	Frank Lopez	21	Son	Ot	W. Va.
52	Tom Lopez	19	Son	S	W. Va.
53	Russell Lopez	17	Son	S	W. Va.
54	Marguerite Lopez	15	Daughter	S	W. Va.
55	Marie Lopez	9	Daughter	—	W. Va.
56	Lewis Rose	54	Head	Machinist	Italy
57	Julia Rose	22	Daughter	U	W. Va.
58	Carl Rose	20	Son	Gasoline Attendant	W. Va.
59	Teresa Ilario	28	Daughter	H	W. Va.
60	Tony Ilario	32	Son-in-law	Machinist	Italy
61	Philip Torch	42	Head	Foreman	W. Va.
62	Carmella Torch	29	Wife	H	W. Va.
63	Anisa Torch	38	Sister	U	W. Va.
64	Tony Scarzo	28	Head	Pump Crane	W. Va.
65	Nellie Scarzo	22	Wife	H	W. Va.
66	Richard Scarzo	3	Son	—	W. Va.
67	Mary H. Scarzo	2	Daughter	—	W. Va.
68	Katherine Brown	27	Head	Waitress	W. Va.
69	Catherine Brown	25	Wife	H	W. Va.
70	Sam Ducost	46	Head	Owner	Italy
71	Catherine Ducost	41	Wife	H	Italy
72	Frank Ducost	27	Son	Ot	W. Va.
73	Tressa Ducost	25	Daughter	H	W. Va.
74	Albert Ducost	22	Son	Labor	W. Va.
75	Sam Ducost	20	Son	Labor	W. Va.
76	Thelma Ducost	15	Daughter	—	W. Va.
77	Jo Ann Ducost	6	Daughter	—	W. Va.
78	Carmella Mancuso	42	Head	H	Italy
79	Pete Mancuso	24	Son	General Labor	W. Va.
80	Frank Mancuso	23	Son	General Labor	W. Va.

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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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