Mary Collins — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Collins across the 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1908), then head of a 10-person household.

Age 32 b. ~1908 Female Spouse Born: Irish Free State Married

1940 Census Record Details

Census Year	1940
Location	Bronx-County, New York
Surname	Collins
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Irish Free State
1935 Residence (City)	New York
1935 Residence (County)	Bronx
Naturalization Status	Alien
Additional Details
Highest Grade	No 8
1935 Residence	New York
Birthplace (normalized)	irish free state
Township / Ward	New York
Est. Birth Year	~1908

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Nora Collins	Daughter	—	8	~1932
Mary Collins	Daughter	—	9	~1931
Margaret Collins	Daughter	—	7	~1933
John Collins	Head	—	35	~1905
Jeremiah Collins	Son	—		~1940
John Collins	Son	—	6	~1934
Michael Collins	Son	—	5	~1935
Cornelius Collins	Son	—	2	~1938
Maurice Collins	Son	—	3	~1937
Mary Collins	Spouse	—	32	~1908

Census Appearances

1930

New York, …

Other, age 22

New York, New York · implied b. ~1908 — 12 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Collins
Given Name	Mary
Relationship to Head	Servant
Sex	F
Color / Race	White
Age	22
Marital Status	Single
Birthplace	Irish Free State
Naturalization Status	Alien
Year of Immigration	1928
Father's Birthplace	Irish Free State
Mother's Birthplace	Irish Free State
Occupation	Kitchen Maid
Industry	Private Family
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	English
Birthplace (normalized)	irish free state

1940

Bronx-County, New …

Spouse, age 32

Bronx-County, New York · implied b. ~1908 — 10 household members

Surname	Collins
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Irish Free State
1935 Residence (City)	New York
1935 Residence (County)	Bronx
Naturalization Status	Alien
Highest Grade	No 8
1935 Residence	New York
Birthplace (normalized)	irish free state

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Collins

Spouse · 1940 · age 32 · b. ~1908 · 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

40 people indexed on this census page (nara:1940:m-t0627-02461-00852)

Line	Name	Age	Relation	Occupation	Birthplace
41	Margaret Dela	12	Daughter	—	New York
42	Michael Dela	42	Head	Operator-Pumps	Irish Free State
43	Charlotte Dela	46	Wife	—	Irish Free State
44	Cathrene Dela	14	Daughter	—	New York
45	Anna Dela	12	Daughter	—	New York
46	Margaret Dela	11	Daughter	—	New York
47	John Collins	35	Head	Plumber	Irish Free State
48	Mary Collins THIS PERSON	32	Wife	—	Irish Free State
49	Mary Collins	9	Daughter	—	New York
50	Nora Collins	8	Daughter	—	New York
51	Margaret Collins	7	Daughter	—	New York
52	John Collins	6	Son	—	New York
53	Michael Collins	5	Son	—	New York
54	Maurice Collins	3	Son	—	New York
55	Cornelius Collins	2	Son	—	New York
56	Jeremiah Collins	0	Son	—	New York
57	Cosmo Verini	59	Head	Proprietor	Italy
58	Elizabeth Verini	48	Wife	—	Italy
59	Lina Trotti	15	Step-child	—	Italy
60	Mary Trotti	9	Step-child	—	Oregon
61	Jerry Mercanti	82	Father-in-law	—	Italy
62	Mary Mercanti	82	Mother-in-law	—	Italy
63	Charles Kammerer	34	Head	—	New York
64	Marie Kammerer	34	Wife	—	New York
65	George Kammerer	21	Son	Automobile Machine	New York
66	Gwendolyn Kammerer	10	Daughter	—	New York
67	John Mckenna	29	Head	Porter	Scotland
68	Mary Mckenna	26	Wife	—	New York
69	William Mckenna	7	Son	—	New York
70	John Mckenna	2	Son	—	New York
71	Gerard Mckenna	0	Son	—	New York
72	Extra Line	None	—	—	—
73	William Dolan	29	Head	Longshoreman	New York
74	Evelyn Dolan	28	Wife	Manager	New York
75	James O'Hara	27	Head	Clerk	New York
76	Helen O'Hara	20	Wife	File Clerk	Newfoundland
77	Michael Ianni	43	Head	Porter	Hungary
78	Mary Ianni	40	Wife	—	Hungary
79	Hilda Ianni	9	Daughter	—	New York
80	Frank Brand	36	Head	Moving Van	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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