YourRoots by Genomelink
Sign up free
JH

John Hennessey — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Hennessey across the 1930 and 1940 US Censuses in Westchester-County, New York (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 11-person household.

Age 17 b. ~1923 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationWestchester-County, New York
SurnameHennessey
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age17
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Yonkers
1935 Residence (County)Westchester
Additional Details
Highest GradeH-2
1935 ResidenceSame house
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardYonkers
Est. Birth Year~1923

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.

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

Name Relation to head Relative to John Age Birth yr
Bernice Hennessey Daughter — 15 ~1925
Mary Hennessey Daughter — 5 ~1935
Anna Sullivan Other — 42 ~1898
Mary Hennessey Spouse — 39 ~1901
Stephen Hennessey Head — 44 ~1896
John Hennessey Son — 17 ~1923
Stephen Hennessey Son — 3 ~1937
Joan Hennessey Daughter — 8 ~1932
Patricia Hennessey Daughter — 13 ~1927
Geraldine Hennessey Daughter — 11 ~1929
Edward Radican Other — 20 ~1920

Census Appearances

1930
Westchester, New …
Son, age 7
Westchester, New York · implied b. ~1923 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Hennessey
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 7
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Westchester-County, New …
Son, age 17
Westchester-County, New York · implied b. ~1923 — 11 household members
Surname Hennessey
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 17
Marital Status Single
Birthplace New York
1935 Residence (City) Yonkers
1935 Residence (County) Westchester
Highest Grade H-2
1935 Residence Same house
Birth State New York
Birth Country United States
Birthplace (normalized) new york

Model Tree

An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Linked across censuses
Our Model Tree links John Hennessey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hennessey
Son · 1940 · age 17 · b. ~1923 · New York
★ You are viewing this record
Sibling
Patricia Hennessey
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Hennessey
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stephen Hennessey
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Hennessey
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Hennessey
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Hennessey
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Westchester-County, New York Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-02866-00536)

Line Name Age Relation Occupation Birthplace
41 Byron Moore 26 Head Nurseryman New York
42 Emily Moore 25 Wife Waitress New York
43 Appollini Bianci 53 Head Stone Cutter Italy
44 Rose Bianci 53 Wife — Italy
45 Blanche Bianci 28 Daughter Stenographer Italy
46 William Young 31 Head Porter Scotland
47 Catherine Young 32 Wife Setter New York
48 Mary Young 60 Mother — Scotland
49 Anthony D'Onofrio 41 Head Landscape Gardener Italy
50 Mary D'Onofrio 37 Wife — New York
51 Joseph D'Onofrio 16 Son Clerk New York
52 Elmer D'Onofrio 11 Son — New York
53 Stephen Hennessey 44 Head Milkman New York
54 Mary Hennessey 39 Wife — New York
55 John Hennessey THIS PERSON 17 Son — New York
56 Bernice Hennessey 15 Daughter — New York
57 Patricia Hennessey 13 Daughter — New York
58 Geraldine Hennessey 11 Daughter — New York
59 Joan Hennessey 8 Daughter — New York
60 Mary Hennessey 5 Daughter — New York
61 Stephen Hennessey 3 Son — New York
62 Anna Sullivan 42 Sister-in-law Telephone Operator New York
63 Edward Radican 20 Lodger Milkman Helper New York
65 William Coughlin 40 Head Fireman New York
66 Helen Coughlin 36 Wife — Missouri
67 Audrey Coughlin 18 Daughter — New York
68 William Coughlin 13 Son — New York
69 Gerald Coughlin 10 Son — New York
70 Frank Sanzo 53 Head Butcher Italy
71 Mary Sanzo 39 Wife — Italy
72 Joseph Sanzo 19 Son Chauffeur New York
73 Louise Sanzo 18 Daughter — New York
74 Teresa Sanzo 16 Daughter — New York
75 Anna Sanzo 14 Daughter — New York
76 Frank Sanzo 13 Son — New York
77 Lenora Sanzo 11 Daughter — New York
78 Edward Sanzo 9 Son — New York
79 Marie Sanzo 3 Daughter — New York
80 Isaac Martin 74 Head — Czechoslovakia

Search for John Hennessey

All John Hennessey Census Records Discover Hennessey Family Tree

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)

Report inaccurate data
👤 View Profile 🌳 Ancestors 👥 Descendants