Mary Hart — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Hart across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 4-person household.

Age 46 b. ~1894 Female Head Born: Ireland Widowed

1940 Census Record Details

Census Year	1940
Location	New-York-County, New York
Surname	Hart
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	46
Marital Status	Widowed
Birthplace	Ireland
1935 Residence (City)	Manhattan Borough
1935 Residence (County)	New York
Naturalization Status	Naturalized
Additional Details
Industry	0
Highest Grade	7
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	Manhattan Borough
Est. Birth Year	~1894

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
Ann Hart	Daughter	—	19	~1921
Mary Hart	Daughter	—	22	~1918
Mary Hart	Head	—	46	~1894
August Vogt	Other	—	63	~1877

Census Appearances

1920

New York, …

Spouse, age 27

New York, New York · implied b. ~1893 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hart
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	27
Marital Status	Married
Birthplace	Ireland
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth Country	Ireland
Year of Naturalization	1917
Birthplace (normalized)	ireland

1930

Nassau, New …

Spouse, age 36

Nassau, New York · implied b. ~1894 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hart
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Ireland
Naturalization Status	Alien
Year of Immigration	1912
Age at First Marriage	23
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Domestic
Industry	Housework
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	English
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

New-York-County, New …

Head, age 46

New-York-County, New York · implied b. ~1894 — 4 household members

Surname	Hart
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	46
Marital Status	Widowed
Birthplace	Ireland
1935 Residence (City)	Manhattan Borough
1935 Residence (County)	New York
Naturalization Status	Naturalized
Industry	0
Highest Grade	7
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links Mary Hart 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 Hart

Head · 1940 · age 46 · b. ~1894 · 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 — New-York-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02640-00722)

Line	Name	Age	Relation	Occupation	Birthplace
1	Mary Hacker	25	Wife	—	New York
2	Thomas Hacker	4	Son	—	New York
3	Robert Hacker	4	Son	—	New York
4	Richard Hacker	3	Son	—	New York
5	Sonya Hacker	2	Daughter	—	New York
6	Stephania Turovich	23	Sister	Salesgirl	New York
7	Nicholas Pantelakos	42	Head	Waiter	Greece
8	Kaliope Pantelakos	36	Wife	—	Greece
9	John Pantelakos	13	Son	—	New York
10	George Pantelakos	12	Son	—	New York
11	Milton Pantelakos	8	Son	—	New York
12	Michael Pantelakos	7	Son	—	New York
13	John Curran	46	Head	Packer	Ireland
14	Theresa Curran	46	Wife	—	Ireland
15	Susan Mcnicholl	10	Niece	—	New York
16	Edward Reixner	40	Head	Painter	New York
17	Minnie Reixner	40	Wife	—	New York
18	Catherine Reixner	12	Daughter	—	New York
19	Edward Reixner	8	Son	—	New York
20	Fred Horan	41	Head	Tiler	New York
21	Mary Horan	43	Wife	—	Ireland
22	Patrick Mahoney	22	Son	Supervisor	New York
23	Walter Mahoney	7	Son	—	New York
24	Mary Hart THIS PERSON	46	Head	—	Ireland
25	Mary Hart	22	Daughter	Saleslady	New York
26	Ann Hart	19	Daughter	File Clerk	New York
27	August Vogt	63	Lodger	Agent	Germany
28	Thomas Comerford	26	Head	Longshoreman	New York
29	Elizabeth Comerford	40	Wife	—	New York
30	Alexander Macintyre	37	Head	Shipping Clerk	Scotland
31	Jean Macintyre	37	Wife	—	Scotland
32	Gilbert Macintyre	14	Son	—	New York
33	Julius Condero	39	Head	Store Clerk	Puerto Rico
34	Emilia Condero	30	Wife	—	Puerto Rico
35	Lillian Condero	11	Daughter	—	New York
36	Nemi Condero	10	Daughter	—	New York
37	Emilie Condero	5	Daughter	—	New York
38	John Sierra	40	Head	Auto Mechanic	Puerto Rico
39	Amelia Sierra	33	Wife	—	Puerto Rico
40	Carmen Sierra	16	Daughter	—	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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