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John Dempsey — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Dempsey across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 7-person household.

Age 22 b. ~1918 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationKings-County, New York
SurnameDempsey
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age22
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)New York City
1935 Residence (County)Kings
Additional Details
OccupationClerk
IndustryHandy Mfg.
Class of WorkerPW
Hours Worked40
Income (1939)266
Highest GradeH-3
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationClerk
Township / WardNew York City
Est. Birth Year~1918

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.

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

Name Relation to head Relative to John Age Birth yr
Agnes Dempsey Daughter — 15 ~1925
John Dempsey Son — 22 ~1918
Mary Dempsey Daughter — 15 ~1925
Margaret Dempsey Daughter — 21 ~1919
Maurice Dempsey Head — 65 ~1875
Mary Dempsey Spouse — 55 ~1885
Julia Dempsey Daughter — 19 ~1921

Census Appearances

1930
Kings, New …
Son, age 13
Kings, New York · implied b. ~1917 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Dempsey
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 13
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace Irish Free State
Can Read/Write Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Kings-County, New …
Son, age 22
Kings-County, New York · implied b. ~1918 — 7 household members
Surname Dempsey
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 22
Marital Status Single
Birthplace New York
1935 Residence (City) New York City
1935 Residence (County) Kings
Occupation Clerk
Industry Handy Mfg.
Class of Worker PW
Hours Worked 40
Income (1939) 266
Highest Grade H-3
1935 Residence Same place
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 Dempsey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Dempsey
Son · 1940 · age 22 · b. ~1918 · New York
★ You are viewing this record
Sibling
Julia Dempsey
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dempsey
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Dempsey
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Dempsey
Sibling · 1940 · age 15
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 — Kings-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02566-00966)

Line Name Age Relation Occupation Birthplace
1 Ralph D'Angelo 34 Head Salesman Italy
2 Rose D'Angelo 27 Wife — New York
3 Jane D'Angelo 8 Daughter — New York
4 Richard D'Angelo 2 Son — New York
5 Carmine Ione 79 Head — Italy
6 Jennie Ione 65 Wife — Italy
7 Louise Ione 27 Daughter — New York
8 Jane Dilmartin 54 Head — New York
9 Griffith Dilmartin 33 Son Laborer New York
10 Jane Dilmartin 21 Daughter Packer New York
11 John Perna 42 Head Peddler New York
12 Mary Perna 37 Wife — England
13 Philip Steltzer 75 Head — Germany
14 Mary Steltzer 67 Wife — Germany
15 Mary Steltzer 32 Daughter Secretary New York
16 William J. Quinn 50 Head — Ohio
17 Sarah Quinn 46 Wife — Ohio
18 James Quinn 43 Son Clerk New York
19 Gertrude Hofreth 43 Head — Germany
20 John Dimbat 32 Head Patrolman New York
21 Anna Dimbat 28 Wife — New York
22 Eleanor Dimbat 8 Daughter — New York
23 Joan Dimbat 4 Daughter — New York
24 Edward Dimbat 3 Son — New York
25 John Dunne 60 Head Fireman New York
26 Maud Dunne 55 Wife — New York
27 Maude Dunne 31 Daughter Bookkeeper New York
28 Alice Dunne 19 Daughter Hand Washer New York
29 Maurice Dempsey 65 Head Watchman New York
30 Mary Dempsey 55 Wife — Eire
31 John Dempsey THIS PERSON 22 Son Clerk New York
32 Margaret Dempsey 21 Daughter Clerk New York
33 Julia Dempsey 19 Daughter Clerk (Secretary) New York
34 Mary Dempsey 15 Daughter — New York
35 Agnes Dempsey 15 Daughter — New York
36 Lester Baum 42 Head Auto Mechanic New York
37 Sarah Baum 37 Wife — New York
38 Harry Baum 12 Son — New York
39 Roman Clark 39 Head Driver New York
40 Veronica Clark 35 Wife — 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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