Mary Mcgrath — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Bronx-County, New York

Our Model Tree links this Mary Mcgrath across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a head (b.~1859), then head of a 2-person household.

Age 81 b. ~1859 Female Head Born: Ireland Widowed

1940 Census Record Details

Census Year	1940
Location	Bronx-County, New York
Surname	McGrath
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	81
Marital Status	Widowed
Birthplace	Ireland
1935 Residence (City)	New York City
1935 Residence (County)	Bronx
Naturalization Status	Naturalized
Additional Details
Class of Worker	0
Hours Worked	0
Highest Grade	H 4
1935 Residence	New York
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	New York City
Est. Birth Year	~1859

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 Mcgrath	Head	—	81	~1859
James Mcgrath	Son	—	43	~1897

Census Appearances

1920

None, New …

Other, age 55

None, New York · implied b. ~1865 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McGrath
Given Name	Margaret
Relationship to Head	Housekeeper
Sex	F
Color / Race	White
Age	55
Marital Status	Widowed
Birthplace	Ireland
Year of Immigration	1894
Naturalization Status	Naturalized
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth Country	Ireland
Birthplace (normalized)	ireland

1930

Bronx, New …

Other, age 66

Bronx, New York · implied b. ~1864 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McGrath
Given Name	Margaret
Relationship to Head	Mother-H
Sex	F
Color / Race	White
Age	66
Marital Status	Widowed
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1880
Age at First Marriage	26
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	none
Can Read/Write	Yes
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

Bronx-County, New …

Head, age 81

Bronx-County, New York · implied b. ~1859 — 2 household members

Surname	McGrath
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	81
Marital Status	Widowed
Birthplace	Ireland
1935 Residence (City)	New York City
1935 Residence (County)	Bronx
Naturalization Status	Naturalized
Class of Worker	0
Hours Worked	0
Highest Grade	H 4
1935 Residence	New York
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Mcgrath

Head · 1940 · age 81 · b. ~1859 · New York

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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 — Bronx-County, New York Open full size

Page Contents

35 people indexed on this census page (nara:1940:m-t0627-02494-00828)

Line	Name	Age	Relation	Occupation	Birthplace
1	Mary Dreyfuss	60	Head	—	New York
2	John Murphy	50	Brother	Operator	New York
3	James Mcallister	40	Head	Chauffeur	New York
4	Mary Mcallister	36	Wife	—	New York
5	Josephine Mcallister	17	Daughter	—	New York
11	Frank Pirata	40	Head	Clerk	Italy
12	Josephine Pirata	36	Wife	—	Italy
13	Dominick Porto	57	Head	Superintendent	New York
14	Frances Porto	44	Wife	—	New York
15	Salvatore Barna	40	Head	Chauffeur	Italy
16	Laura Barna	32	Wife	—	Massachusetts
17	John Barna	20	Son	Clerk	New York
18	John Pini	60	Head	Violinist	Italy
19	Carla Pini	58	Wife	—	Italy
20	Lorenzo Bayer	28	Head	Iron Worker	New York
21	Virginia Bayer	24	Wife	—	New York
22	Sharon Bayer	2	Daughter	—	New York
23	Thomas Luce	34	Head	Laborer	New York
24	Dorothy Luce	34	Wife	—	Connecticut
25	Anthony Luce	8	Son	—	New York
26	Mary Mcgrath THIS PERSON	81	Head	—	Ireland
27	James Mcgrath	43	Son	Maintenance Man	New York
28	Charles Klopp	37	Head	Clerk	New York
29	Catherine Klopp	37	Wife	—	New York
30	Charles Klopp	9	Son	—	New York
31	Robert Reilly	5	Nephew	—	New York
32	Aurelius Chapeau	66	Head	—	New York
33	Catherine Chapeau	42	Daughter	Clerk	New York
34	Bernard Chapeau	19	Son	—	New York
35	Pietro Varricchio	57	Head	Stock Clerk	Italy
36	Angelina Varricchio	57	Wife	—	Italy
37	Italo Varricchio	27	Son	Teacher	New York
38	Regina Varricchio	17	Daughter	—	New York
39	Corinna Varricchio	15	Daughter	—	New York
40	Emilo Bonavoglia	40	Head	Taylor	Italy

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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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