Mary Schwartz — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Schwartz across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 3-person household.

Age 66 b. ~1874 Female Head Born: Hungary Widowed

1940 Census Record Details

Census Year	1940
Location	Kings-County, New York
Surname	Schwartz
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	66
Marital Status	Widowed
Birthplace	Hungary
1935 Residence (City)	New York City
1935 Residence (County)	Kings
Naturalization Status	Alien
Additional Details
Highest Grade	No 0
1935 Residence	Same Place
Birth Country	Hungary
Birthplace (normalized)	hungary
Township / Ward	New York City
Est. Birth Year	~1874

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
Jean Schwartz	Daughter	—	31	~1909
Murray Schwartz	Son	—	18	~1922
Mary Schwartz	Head	—	66	~1874

Census Appearances

1920

Bergen, New …

Spouse, age 45

Bergen, New Jersey · implied b. ~1875 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schwartz
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Hungary
Year of Immigration	1895
Naturalization Status	Naturalized
Father's Birthplace	Hungary
Mother's Birthplace	Hungary
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Magyar
Birth Country	Hungary
Year of Naturalization	1901
Birthplace (normalized)	hungary

1930

Bronx, New …

Spouse, age 55

Bronx, New York · implied b. ~1875 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schwartz
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Hungary
Naturalization Status	Naturalized
Year of Immigration	1895
Age at First Marriage	22
Father's Birthplace	Hungary
Mother's Birthplace	Hungary
Can Read/Write	Yes
Mother Tongue	Yiddish
Birth Country	Hungary
Birthplace (normalized)	hungary

1940

Kings-County, New …

Head, age 66

Kings-County, New York · implied b. ~1874 — 3 household members

Surname	Schwartz
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	66
Marital Status	Widowed
Birthplace	Hungary
1935 Residence (City)	New York City
1935 Residence (County)	Kings
Naturalization Status	Alien
Highest Grade	No 0
1935 Residence	Same Place
Birth Country	Hungary
Birthplace (normalized)	hungary

Model Tree

Linked across censuses

Our Model Tree links Mary Schwartz 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 Schwartz

Head · 1940 · age 66 · b. ~1874 · 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

40 people indexed on this census page (nara:1940:m-t0627-02561-00300)

Line	Name	Age	Relation	Occupation	Birthplace
41	Lena Weiss	43	Head	Retail Candy Store	France
42	Theodore Weiss	21	Son	Retail Candy Store	New York
43	Beatrice Weiss	19	Daughter	Retail Candy Store	New York
44	Anita Weiss	11	Daughter	—	New York
45	Morris Polofsky	34	Head	Retail Bakery	Poland
46	Sylvia Polofsky	34	Wife	—	Poland
47	Arthur Polofsky	12	Son	—	New York
48	Charles Polofsky	6	Son	—	New York
49	Charles Kreich	42	Head	Retail Dry Goods	Russia
50	Celia Kreich	39	Wife	—	Russia
51	Mary Schwartz THIS PERSON	66	Head	—	Hungary
52	Jean Schwartz	31	Daughter	Stripper	New York
53	Murray Schwartz	18	Son	Cab Driver	New York
54	Ruby Feinstein	31	Head	Felling Mach.	Poland
55	Henry Feinstein	12	Son	—	New York
56	Sarah Looker	43	Boarder	Gluer	Russia
57	Irving Hochman	46	Head	Salesman	Austria
58	Ray Hochman	39	Wife	—	New York
59	Charles Zimmerman	70	Father-in-law	—	Austria
60	Hyman Pomerantz	27	Head	Wholesale Lace Cutting	New York
61	Sylvia Pomerantz	24	Wife	Credit Clerk	Mass.
62	Joseph Jacowitz	28	Head	Pressman	New York
63	Jean Jacowitz	27	Wife	Stenographer	New York
64	Ada Kassore	50	Head	—	Russia
65	Sadie Kassore	27	Daughter	General Office	New York
66	Harry Lyman	38	Head	Operator	New York
67	Joseph Schulman	45	Head	Cutter	Russia
68	Jacob Marowitz	59	Head	Operator	Russia
69	Sarah Marowitz	58	Wife	—	Russia
70	Dorothy Marowitz	16	Daughter	—	Connecticut
71	Jacob Rosenkrantz	58	Head	Burglar Alarm System	Russia
72	Anna Rosenkrantz	52	Wife	—	Russia
73	Meyer Feldman	34	Head	Ship. Clerk	Russia
74	Bessie Feldman	38	Wife	—	Russia
75	Daniel Feldman	9	Son	—	New York
76	Isidore Monastirsky	37	Head	Cab Driver	Russia
77	Pauline Monastirsky	27	Wife	Beautician	Poland
78	Emanuel Black	31	Head	Lawyer	New York
79	Ray Black	30	Wife	Book Keeper	New York
80	Dora Kaufman	60	Head	—	Russia

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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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