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John Hartman — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Kings, New York

Our Model Tree links this John Hartman across the 1930 and 1940 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a son (b.~1906), then head of a 9-person household.

Age 24 b. ~1906 Male Son Born: New York Single

1930 Census Record Details

Census Year1930
LocationKings, New York
SurnameHartman
Given NameJohn S
Relationship to HeadSon
SexM
Color / RaceWhite
Age24
Marital StatusSingle
BirthplaceNew York
Father's BirthplaceNew York
Mother's BirthplaceNew York
Additional Details
OccupationIronworker
IndustrySupply
Class of WorkerW
Can Read/WriteYes
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationIronworker
Township / WardBrooklyn Borough
Est. Birth Year~1906

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 1930 census.

Name Relation to head Relative to John Age Birth yr
Margaret Hartman Daughter — 9 ~1921
Teresa Wright Daughter — 1 ~1929
Minnie Wright Daughter — 21 ~1909
John Hartman Head — 53 ~1877
John Hartman Son — 24 ~1906
Ferdinand Hartman Son — 13 ~1917
Charles Hartman Son — 20 ~1910
Jacob Hartman Son — 23 ~1907
Bertha Hartman Spouse — 43 ~1887

Census Appearances

1930
Kings, New …
Son, age 24
Kings, New York · implied b. ~1906 — 9 household members
Surname Hartman
Given Name John S
Relationship to Head Son
Sex M
Color / Race White
Age 24
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation Ironworker
Industry Supply
Class of Worker W
Can Read/Write Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Kings-County, New …
Head, age 36
Kings-County, New York · implied b. ~1904 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Hartmann
Given Name John
Relationship to Head Head
Sex M
Color / Race White
Age 36
Marital Status Married
Birthplace New York
1935 Residence (City) Brooklyn Borough
1935 Residence (County) Kings
Occupation machinist
Industry factory
Class of Worker PW
Hours Worked 40
Income (1939) 1600
Highest Grade No 8
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 · 1930 · age 24 · b. ~1906 · New York
★ You are viewing this record
Sibling
Charles Hartman
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Hartman
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacob Hartman
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ferdinand Hartman
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Wright
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Teresa Wright
Sibling · 1930 · age 1
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

1930 US Federal Census — Kings, New York Open full size

Page Contents

28 people indexed on this census page (ia:1930:newyorkcensus00reel1534:0505)

Line Name Age Relation Occupation Birthplace
1 James Kaercher 30 Head Chauffeur New York
2 Anna G Kaercher 30 Wife — New York
3 Henry J Kaercher 9 Son — New York
4 Madeline G Kaercher 8 Daughter — New York
5 Charles B Kaercher 6 Son — New York
7 Patrick Keefe 60 Head Laborer Irish Free State
8 Bridget Keefe 55 Wife — Irish Free State
9 Patrick R Keefe 24 Son Laborer New York
10 Florence Keefe 20 Daughter Helper New York
11 William Keefe 19 Son Chauffeur New York
12 Barbra Felsen 57 Head — New York
13 Mary T Felsen 25 Daughter Helper New York
14 George J Felsen 23 Son Chauffeur New York
15 John Hartman 53 Head Watchman New York
16 Bertha T Hartman 43 Wife — New York
17 John S Hartman THIS PERSON 24 Son Ironworker New York
18 Jacob A Hartman 23 Son Helper New York
19 Minnie Wright 21 Daughter — New York
20 Charles Hartman 20 Son Salesman New York
21 Ferdinand Hartman 13 Son — New York
22 Margaret Hartman 9 Daughter — New York
23 Teresa Wright 1 Daughter — New York
26 James Honlahan 45 Head Operator New York
27 Mary Honlahan 39 Wife — New York
28 James Honlahan 16 Son — New York
29 Rosina Hegman 50 Head Helper Germany
30 Marie Ashman 48 Head Glassman New York
31 James Wallace 43 Boarder Helper New York

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1930 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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