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John Dempsey — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Dempsey across the 1930 and 1940 US Censuses in Monroe-County, New York (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 9-person household.

Age 19 b. ~1921 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationMonroe-County, New York
SurnameDempsey
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age19
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Mumford
1935 Residence (County)Monroe
Additional Details
OccupationLaborer
IndustryFarm work
Class of WorkerPW
Hours Worked56
Income (1939)250
Highest GradeH-2
1935 ResidenceSame house
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationLaborer
Township / WardMumford
Est. Birth Year~1921

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.

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

Name Relation to head Relative to John Age Birth yr
William Dempsey Head — 48 ~1892
Genie Dempsey Daughter — 24 ~1916
Henry Dempsey Son — 15 ~1925
Dorothy Dempsey Daughter — 16 ~1924
John Dempsey Son — 19 ~1921
William Dempsey Son — 27 ~1913
Agness Dempsey Daughter — 22 ~1918
Margaret Dempsey Spouse — 54 ~1886
James Dempsey Son — 18 ~1922

Census Appearances

1930
Monroe, New …
Son, age 9
Monroe, New York · implied b. ~1921 — 11 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Dempsey
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 9
Marital Status Single
Birthplace New York
Father's Birthplace Northern Ireland
Mother's Birthplace Northern Ireland
Can Read/Write Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Monroe-County, New …
Son, age 19
Monroe-County, New York · implied b. ~1921 — 9 household members
Surname Dempsey
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 19
Marital Status Single
Birthplace New York
1935 Residence (City) Mumford
1935 Residence (County) Monroe
Occupation Laborer
Industry Farm work
Class of Worker PW
Hours Worked 56
Income (1939) 250
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 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 19 · b. ~1921 · New York
★ You are viewing this record
Sibling
William Dempsey
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Dempsey
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agness Dempsey
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Dempsey
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Dempsey
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genie Dempsey
Sibling · 1940 · age 24
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 — Monroe-County, New York Open full size

Page Contents

25 people indexed on this census page (nara:1940:m-t0627-02680-01059)

Line Name Age Relation Occupation Birthplace
41 Nelson Woodgate 42 Head Husbandry New York
42 Agness Woodgate 40 Wife — New York
43 Beverly Woodgate 10 Daughter — New York
44 Carol Woodgate 6 Daughter — New York
45 Charles Buss 16 Laborer Laborer New York
46 William Dempsey 48 Head Husbandry Ireland
47 Margaret Dempsey 54 Wife — Ireland
48 William Jr Dempsey 27 Son Laborer Ireland
49 Genie Dempsey 24 Daughter Clerical New York
50 Agness Dempsey 22 Daughter House Work New York
51 John Dempsey THIS PERSON 19 Son Laborer New York
52 James Dempsey 18 Son — New York
53 Dorothy Dempsey 16 Daughter — New York
54 Henry Dempsey 15 Son — New York
55 William Martin 61 Head President Texas
56 Gertrude Martin 54 Wife — Tennessee
57 John W. Oberg 50 Laborer Caretaker Sweden
58 Teckla Oberg 48 Maid Housekeeper Sweden
59 William Rainus 36 Head Truck Driver New York
60 June Rainus 27 Wife — New York
61 David Rainus 8 Son — New York
62 Nancy Rainus 5 Daughter — New York
63 Shirley Rainus 1 Daughter — New York
64 Anna Dempsey 23 Lodger Stenographer New York
65 Belleau 67 Head Registered Nurse 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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