Mary Frey — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Frey across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 4-person household.

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

1940 Census Record Details

Census Year	1940
Location	Kings-County, New York
Surname	Frey
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	66
Marital Status	Widowed
Birthplace	Germany
1935 Residence (City)	Brooklyn
1935 Residence (County)	Kings
Naturalization Status	Naturalized
Additional Details
Occupation	Teacher
Industry	Self Emp
Class of Worker	OA
Income (1939)	1500
Highest Grade	H 4
1935 Residence	New York
Birth Country	Germany
Birthplace (normalized)	germany
Occupation	Teacher
Township / Ward	New York
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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Robert Frey	Son	—	24	~1916
Cornelius Frey	Son	—	30	~1910
Mary Frey	Head	—	66	~1874
Albert Frey	Son	—	26	~1914

Census Appearances

1920

Kings, New …

Spouse, age 45

Kings, New York · implied b. ~1875 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Frey
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Germany
Naturalization Status	un
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	German
Birth Country	Germany
Birthplace (normalized)	germany

1930

Kings, New …

Spouse, age 55

Kings, New York · implied b. ~1875 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Frey
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Germany
Naturalization Status	Naturalized
Year of Immigration	1896
Age at First Marriage	29
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read/Write	Yes
Mother Tongue	German
Birth Country	Germany
Birthplace (normalized)	germany

1940

Kings-County, New …

Head, age 66

Kings-County, New York · implied b. ~1874 — 4 household members

Surname	Frey
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	66
Marital Status	Widowed
Birthplace	Germany
1935 Residence (City)	Brooklyn
1935 Residence (County)	Kings
Naturalization Status	Naturalized
Occupation	Teacher
Industry	Self Emp
Class of Worker	OA
Income (1939)	1500
Highest Grade	H 4
1935 Residence	New York
Birth Country	Germany
Birthplace (normalized)	germany

Model Tree

Linked across censuses

Our Model Tree links Mary Frey 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 Frey

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-t0627-02576-00445)

Line	Name	Age	Relation	Occupation	Birthplace
1	Charles Burbank	54	Head	Clerk	Brooklyn
2	William Burbank	49	Son	Shipping Clerk	Brooklyn
3	Lorraine Burbank	17	Daughter	Secretary	New York
4	Arnold Albert	35	Head	Shoe Cutter	New Jersey
5	Helen Albert	32	Wife	Stenographer	New York
6	Mary Burns	56	Mother-in-law	—	Ireland
7	William H. Little	30	Head	Electrician	Massachusetts
8	Vera Little	36	Wife	Dental Hygienist	Mass.
9	Lucy Little	66	Mother	—	New York
10	William A. Profheart	48	Head	Salesman	New York
11	Jessie Profheart	45	Wife	—	New York
12	Edward Profheart	17	Son	—	New York
13	Leonard Profheart	17	Son	—	New York
14	Ralph Profheart	15	Son	—	New York
15	Katherine Harron	56	Head	Teacher	Brooklyn
16	Mary Harron	26	Daughter	Buyer	Brooklyn
17	John Harron	25	Son	Typist	Brooklyn
18	Catherine Harron	22	Daughter	—	Brooklyn
19	Grace Harron	20	Daughter	Teacher	Brooklyn
20	Mary Norton	59	Sister	Teacher	Brooklyn
21	Walter Ryan	60	Head	Mason Builder	Indiana
22	Jane Ryan	60	Wife	—	Brooklyn
23	Jane Lannon	61	Sister-in-law	Retired	Brooklyn
24	Flora Reed	80	Head	—	Ireland
25	Elizabeth Reed	37	Daughter	Stenographer	Kansas
26	Charles H. Parsons	39	Head	Teacher	New York
27	Blanche Parsons	37	Wife	Teacher	New Jersey
28	Ernest Barone	61	Head	Shoemaker	Italy
29	Filomena Barone	50	Wife	—	Italy
30	John Barone	33	Son	Attorney	New York
31	Theresa Barone	27	Daughter	Bookkeeper	New York
32	Frederick Treshew	65	Head	Waiter	New York
33	Pearl Stewart	60	Housekeeper	Housekeeper	Iowa
34	George Tuthill	83	Head	Retired	Mass.
35	Harry Tuthill	51	Son	—	New York
36	Dorothy Tuthill	49	Daughter	Teacher	New York
37	Mary Frey THIS PERSON	66	Head	Teacher	Germany
38	Cornelius Frey	30	Son	Clerk	New York
39	Albert Frey	26	Son	Printer	New York
40	Robert Frey	24	Son	Printer	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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