Mary Kennedy — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Kennedy across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 3-person household.

Age 56 b. ~1884 Female Head Born: New Jersey Widowed

1940 Census Record Details

Census Year	1940
Location	New-York-County, New York
Surname	Kennedy
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	56
Marital Status	Widowed
Birthplace	New Jersey
1935 Residence (City)	New York City
1935 Residence (County)	New York
Additional Details
Class of Worker	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey
Township / Ward	New York City
Est. Birth Year	~1884

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
Alice Kennedy	Daughter	—	24	~1916
Helen Kennedy	Daughter	—	27	~1913
Mary Kennedy	Head	—	56	~1884

Census Appearances

1920

New York, …

Spouse, age 35

New York, New York · implied b. ~1885 — 14 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kennedy
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	35
Marital Status	Married
Birthplace	New Jersey
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	German
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey

1930

New York, …

Spouse, age 45

New York, New York · implied b. ~1885 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kennedy
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	New Jersey
Age at First Marriage	23
Father's Birthplace	Germany
Mother's Birthplace	Ireland
Can Read/Write	Yes
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey

1940

New-York-County, New …

Head, age 56

New-York-County, New York · implied b. ~1884 — 3 household members

Surname	Kennedy
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	56
Marital Status	Widowed
Birthplace	New Jersey
1935 Residence (City)	New York City
1935 Residence (County)	New York
Class of Worker	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey

Model Tree

Linked across censuses

Our Model Tree links Mary Kennedy 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 Kennedy

Head · 1940 · age 56 · b. ~1884 · 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-t0627-02651-00599)

Line	Name	Age	Relation	Occupation	Birthplace
1	John Baumann	50	Head	Dealer	Germany
2	Milfred Mccrudden	27	Daughter	Chambermaid	New York
3	John Mccrudden	14	Grandson	—	Penn.
4	Babbette Phlug	45	Lodger	Clerk	Germany
5	Eugene Mckeever	39	Head	Elevator	New York
6	Anna Krouse	45	Step daughter	Chambermaid	New York
7	Thomas Granias	49	Lodger	Waiter	Greece
8	Peter Sollon	23	Lodger	Porter	Penn.
9	Alexander Barker	72	Head	Dresser Maker	England
10	Annie Sanger	56	Lodger	Housekeeper	New York
11	Josephine Knochel	65	Head	—	Eire
12	Hazel B Knochel	27	Daughter	Designer	New York
13	Erik Roy	44	Lodger	Asst. Sexton	Germany
14	Victor Kretchman	45	Lodger	Baker	Germany
15	Joseph Chamberlain	54	Lodger	—	Greece
16	Joseph Collins	36	Lodger	Waiter	New York
17	Frederick Bauer	54	Head	Policeman	New Jersey
18	Mary Bauer	53	Wife	—	Conn.
19	Frederick Bauer	24	Son	Clerk	New York
20	Frederick Garms	19	Nephew	Clerk	New York
21	William Meyer	60	Head	Barber	Germany
22	Therese Meyer	50	Wife	Cook	Germany
23	Anthony Bar	51	Head	Cook	Austria
24	Charles Dolson	49	Lodger	Counterman	Austria
25	James Kogan	42	Lodger	Chauffeur	New York
26	William Rhees	78	Lodger	—	New York
27	Christos Soffos	25	Lodger	Cook	New York
28	Mabel Thompson	75	Head	—	Eire
29	Charles Brownie	35	Lodger	Laborer	Kentucky
30	John Kling	39	Lodger	Cook	Mass.
31	John Roach	30	Lodger	—	Eire
32	Julia Thompkins	52	Lodger	Presser	New York
33	John J Langdon	34	Head	Engineer	New York
34	May Langdon	37	Wife	—	New York
35	Christopher Langdon	19	Son	—	New York
36	Richard Langdon	30	Brother	Usher	New York
37	Lanyda Lefenstor	69	Mother in law	—	Eire
38	Mary Kennedy THIS PERSON	56	Head	—	New Jersey
39	Helen Kennedy	27	Daughter	Stenographer	New York
40	Alice Kennedy	24	Daughter	Clerk	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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