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John Hartman — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Hartman across the 1930 and 1940 US Censuses in Seneca-County, New York (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 9-person household.

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

1940 Census Record Details

Census Year1940
LocationSeneca-County, New York
SurnameHartman
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age17
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Seneca Falls Village
1935 Residence (County)Seneca
Additional Details
Industry0
Highest GradeH 2
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardSeneca Falls Village
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.

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

Name Relation to head Relative to John Age Birth yr
Helen Hartman Daughter — 5 ~1935
Mary Hartman Daughter — 12 ~1928
Harry Hartman Head — 51 ~1889
John Hartman Son — 17 ~1923
Leonard Hartman Son — 20 ~1920
Donald Hartman Son — 14 ~1926
Robert Hartman Son — 9 ~1931
Charles Hartman Son — 24 ~1916
Nina Hartman Spouse — 49 ~1891

Census Appearances

1930
Seneca, New …
Son, age 7
Seneca, New York · implied b. ~1923 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Hartman
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 7
Marital Status Single
Birthplace New York
Father's Birthplace Pennsylvania
Mother's Birthplace New York
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Seneca-County, New …
Son, age 17
Seneca-County, New York · implied b. ~1923 — 9 household members
Surname Hartman
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 17
Marital Status Single
Birthplace New York
1935 Residence (City) Seneca Falls Village
1935 Residence (County) Seneca
Industry 0
Highest Grade H 2
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 Hartman across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hartman
Son · 1940 · age 17 · b. ~1923 · New York
★ You are viewing this record
Sibling
Robert Hartman
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Hartman
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Hartman
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Hartman
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Hartman
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Hartman
Sibling · 1940 · age 14
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 — Seneca-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02779-00542)

Line Name Age Relation Occupation Birthplace
1 Leo Mois 15 Son — New York
2 Bruno Mois 12 Son — New York
3 William Mois 10 Son — New York
4 George J Distichina 71 Head — New York
5 George White 67 Head Retired New York
6 Anna White 64 Wife Housework New York
7 Alfred White 20 Son Clerk New York
8 Harry Hartman 51 Head Machinist New York
9 Nina Hartman 49 Wife Housework New York
10 Charles Hartman 24 Son Millwright New York
11 Leonard Hartman 20 Son Clerk New York
12 John Hartman THIS PERSON 17 Son — New York
13 Donald Hartman 14 Son — New York
14 Mary Hartman 12 Daughter — New York
15 Robert Hartman 9 Son — New York
16 Helen Hartman 5 Daughter — New York
17 Elsie Forneir 47 Head Clerk Italy
18 Eufemia Roffo 76 Mother Housework Italy
19 Jeremiah Mahoney 76 Head — England
20 Catherine Mahoney 72 Wife — England
21 Anna Mahoney 55 Daughter Press Feeder England
22 Bertha Heitman 63 Head Housework New York
23 Sheridan Heitman 108 Patient Housework Ireland
24 Clara Kitty Heitman 94 Patient — Pennsylvania
25 Weatherlow Mary C Heitman 86 Lodger — Canada
26 Dunham Crumblee Heitman 53 Lodger — New York
27 George Klop 52 Head Assembler Austria
28 Amelia Klop 45 Wife Housework Austria
29 Helen Klop 25 Daughter Twister Seneca Falls
30 Catherine Klop 22 Daughter Housework Seneca Falls
31 Nicholas Klop 20 Son Truck Driver New York
32 Stephen Klop 19 Son Paper Route New York
33 Alexander Klop 15 Son — New York
34 Frank Vergilla 48 Head Laborer Italy
35 Mary Vergilla 41 Wife Housework Italy
36 Mary Helen Vergilla 11 Daughter — New York
37 Peter Vergilla 9 Son — New York
38 Donald Vergilla 5 Son — New York
39 Ada Vergilla 2 Daughter — New York
40 Joseph Angiola 50 Head Laborer Italy

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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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