Mary Brennan — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Brennan across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 3-person household.

Age 60 b. ~1880 Female Spouse Born: Ireland Married

1940 Census Record Details

Census Year	1940
Location	Kings-County, New York
Surname	Brennan
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	New York City
1935 Residence (County)	Kings
Naturalization Status	Naturalized
Additional Details
Highest Grade	Hs 4
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	New York City
Est. Birth Year	~1880

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
Loretta Brennan	Daughter	—	28	~1912
Thos Brennan	Head	—	68	~1872
Mary Brennan	Spouse	—	60	~1880

Census Appearances

1920

Kings, New …

Spouse, age 38

Kings, New York · implied b. ~1882 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brennan
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Ireland
Year of Immigration	1899
Naturalization Status	Naturalized
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Laborer
Industry	Refining Co.
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Irish
Birth Country	Ireland
Year of Naturalization	1905
Birthplace (normalized)	ireland

1930

Kings, New …

Spouse, age 50

Kings, New York · implied b. ~1880 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brennan
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	50
Marital Status	Married
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1900
Age at First Marriage	32
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read/Write	Yes
Mother Tongue	English
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

Kings-County, New …

Spouse, age 60

Kings-County, New York · implied b. ~1880 — 3 household members

Surname	Brennan
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	New York City
1935 Residence (County)	Kings
Naturalization Status	Naturalized
Highest Grade	Hs 4
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links Mary Brennan 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 Brennan

Spouse · 1940 · age 60 · b. ~1880 · 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 — Kings-County, New York Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-02606-00010)

Line	Name	Age	Relation	Occupation	Birthplace
41	Edwin Duval Schiller	48	Head	Electrician	New York
42	Annie M. Schiller	46	Wife	—	New York
43	Stanley A. Schiller	21	Son	Electrician	New York
44	Stanley Jr. Schiller	20	Grandson	Clerk	New York
45	Elsa Jane Schiller	12	Granddaughter	—	New York
46	Elinor C. Schiller	23	Daughter	Clerk	New York
47	Samuel J. Salyer	60	Head	—	New York
48	Millie L. Salyer	60	Wife	—	New York
49	Mildred Burke	35	Daughter	—	New York
50	Pamela Burke	13	Granddaughter	—	New York
51	Lester Jarboe	60	Boarder	Homework	New York
52	Minnie Dietz	69	Boarder	Homework	New York
53	Emma Haynes	64	Head	—	Conn.
54	Charles M. Price	67	Head	—	New York
55	Ella Price	62	Wife	—	New York
56	William P. Carroll	52	Head	Broker	New York
57	Elizabeth Carroll	47	Wife	—	New York
58	Margaret Toshack	78	Aunt	—	New York
59	Thomas M. Kennedy	65	Head	Salesman Clerk	New York
60	Kathleen M. Kennedy	33	Daughter	Teacher	New York
62	Josephine Kindred	49	Head	Proofreader	New York
63	Mary Kindred	79	Mother	—	New York
64	Sadie Massoni	55	Sister	—	New York
65	John Massoni	61	Brother-in-law	Printer	Italy
66	Thos Brennan	68	Head	Detective	Ireland
67	Mary Brennan THIS PERSON	60	Wife	—	Ireland
68	Loretta Brennan	28	Daughter	Secretary	New York
69	Hattie Katsky	57	Head	—	New York
70	David A. Katsky	26	Son	Clerk	New York
71	Gustave Sargent	56	Brother	W.P.A.	New York
72	Elizabeth Muhlert	70	Head	—	New York
73	Herbert Muhlert	40	Son	Clerk	New York
74	Armin W. Muhlert	35	Son	Clerk	New York
75	Wilhelmina Motta	65	Sister	—	New York
76	John Carroll Hart	41	Head	Clerk	New York
77	Elinor Hart	42	Wife	—	New York
78	Barbara Hart	9	Daughter	—	New York
79	Peter Hart	7	Son	—	New York
80	John H. Whitaker	24	Head	Optometry Mechanic	New York

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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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