Mary Gallagher — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Essex-County, New Jersey

Our Model Tree links this Mary Gallagher across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 3-person household.

Age 52 b. ~1888 Female Spouse Born: England Married

1940 Census Record Details

Census Year	1940
Location	Essex-County, New Jersey
Surname	Gallagher
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	52
Marital Status	Married
Birthplace	England
1935 Residence (City)	West Orange
Naturalization Status	Naturalized
Additional Details
Income (1939)	0
Highest Grade	Hs 4
1935 Residence	New Jersey
Birth Country	England
Birthplace (normalized)	england
Township / Ward	Orange City
Est. Birth Year	~1888

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 Mary	Age	Birth yr
Thomas Gallagher	Head	—	55	~1885
John Gallagher	Son	—	23	~1917
Mary Gallagher	Spouse	—	52	~1888

Census Appearances

1920

Essex, New …

Spouse, age 35

Essex, New Jersey · implied b. ~1885 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Gallagher
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	35
Marital Status	Married
Birthplace	England
Year of Immigration	1906
Naturalization Status	Alien
Father's Birthplace	England
Mother's Birthplace	England
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth Country	England
Birthplace (normalized)	england

1930

Essex, New …

Spouse, age 42

Essex, New Jersey · implied b. ~1888 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Gallagher
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	England
Naturalization Status	Naturalized
Year of Immigration	1900
Age at First Marriage	22
Father's Birthplace	England
Mother's Birthplace	England
Can Read/Write	Yes
Mother Tongue	English
Birth Country	England
Birthplace (normalized)	england

1940

Essex-County, New …

Spouse, age 52

Essex-County, New Jersey · implied b. ~1888 — 3 household members

Surname	Gallagher
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	52
Marital Status	Married
Birthplace	England
1935 Residence (City)	West Orange
Naturalization Status	Naturalized
Income (1939)	0
Highest Grade	Hs 4
1935 Residence	New Jersey
Birth Country	England
Birthplace (normalized)	england

Model Tree

Linked across censuses

Our Model Tree links Mary Gallagher 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 Gallagher

Spouse · 1940 · age 52 · b. ~1888 · New Jersey

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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 — Essex-County, New Jersey Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02339-00006)

Line	Name	Age	Relation	Occupation	Birthplace
1	James F. Sullivan	78	Head	—	Pennsylvania
2	Catherine Sullivan	76	Wife	—	Ireland
3	Marguerite Sullivan	43	Daughter	Stenographer	New Jersey
4	Irene Sullivan	40	Daughter	Clerk	New Jersey
5	Grace Sullivan	38	Daughter	Stenographer	New Jersey
6	Edward Sullivan	33	Son	Foreman	New Jersey
7	Wallace Lyon	65	Head	House Painter	New Jersey
8	Clarissa Lyon	75	Wife	—	New Jersey
9	Arthur V. Thompson	47	Head	Sign Painter	New Jersey
10	Helen Thompson	41	Wife	Saleslady	New Jersey
11	Arthur W. Thompson	21	Son	Clerk	New Jersey
12	Leonard J. Thompson	20	Son	—	New Jersey
13	William Leonard	39	Brother in law	Salesman	New Jersey
14	George Werner	69	Head	Messenger	New Jersey
15	Frank Werner	41	Son	Caddie	New Jersey
16	Eleanor Werner	16	Daughter	—	New Jersey
17	William Werner	66	Cousin	Electrician	New Jersey
18	Grace Werner	65	Cousin	—	New Jersey
19	Anna Mcgarvey	67	Head	Housekeeper	New Jersey
20	Amanda Nolanda	50	Cousin	Saleslady	New Jersey
21	Elmina Robinson	52	Lodger	School Teacher	New York
22	Mary Marklin	50	Lodger	Asst. Book Registrar	New Jersey
23	Irene Conklin	45	Head	Teacher, School	New Jersey
24	John Di Sandro	29	Head	Trucker	Rhode Island
25	Carmela Di Sandro	24	Wife	—	Rhode Island
26	Barbara Di Sandro	4	Daughter	—	New Jersey
27	James Andruvila	51	Head	Fireman	New York
28	Susan Andruvila	41	Wife	—	Italy
29	Ella Andruvila	21	Daughter	Saleslady	New Jersey
30	James Andruvila	20	Son	Clerk	New Jersey
31	Maria Andruvila	17	Daughter	—	New Jersey
32	Andrew Kostopoulos	55	Head	Confectioner	Greece
33	Ethel Kostopoulos	39	Wife	Waitress	Greece
34	Thelma Kostopoulos	19	Daughter	Clerk	New Jersey
35	John Kostopoulos	17	Son	—	New Jersey
36	Mary Kostopoulos	15	Daughter	—	New Jersey
37	Mary Loudus	70	Mother In-law	—	Greece
38	Thomas Gallagher	55	Head	Utility Garage Man	England
39	Mary Gallagher THIS PERSON	52	Wife	—	England
40	John Gallagher	23	Son	Butcher	New Jersey

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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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