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Mary Kowalski — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Dutchess, New York

Our Model Tree links this Mary Kowalski across the 1930 and 1940 US Censuses in Dutchess, New York (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 7-person household.

Age 9 b. ~1921 Female Daughter Born: New York Single

1930 Census Record Details

Census Year1930
LocationDutchess, New York
SurnameKowalski
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age9
Marital StatusSingle
BirthplaceNew York
Father's BirthplaceNew York
Mother's BirthplacePoland
Additional Details
Occupationnone
Can Read/WriteYes
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardPoughkeepsie City
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.

7 people recorded at the same address in the 1930 census.

Name Relation to head Relative to Mary Age Birth yr
John Kowalski Son — 12 ~1918
John Kowalski Head — 35 ~1895
Josephine Kowalski Daughter — 14 ~1916
Mary Kowalski Spouse — 30 ~1900
Dorothy Kowalski Daughter — 7 ~1923
Leonard Kowalski Son — 4 ~1926
Mary Kowalski Daughter — 9 ~1921

Census Appearances

1930
Dutchess, New …
Daughter, age 9
Dutchess, New York · implied b. ~1921 — 7 household members
Surname Kowalski
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 9
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace Poland
Occupation none
Can Read/Write Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Dutchess-County, New …
Other, age 19
Dutchess-County, New York · implied b. ~1921 — 40 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Kowalski
Given Name Marcelle
Relationship to Head Patient
Sex F
Color / Race White
Age 19
Marital Status Single
Birthplace New York
1935 Residence (City) Rochester
1935 Residence (County) Monroe
Highest Grade H-1
1935 Residence New York
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 Mary Kowalski across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kowalski
Daughter · 1930 · age 9 · b. ~1921 · New York
★ You are viewing this record
Sibling
Leonard Kowalski
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Kowalski
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Kowalski
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kowalski
Sibling · 1930 · age 12
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 — Dutchess, New York Open full size

Page Contents

48 people indexed on this census page (ia:1930:newyorkcensus00reel1420:0294)

Line Name Age Relation Occupation Birthplace
51 John Kowalski 35 Head Baker New York
52 Mary Kowalski 30 Wife Housework Poland
53 Josephine Kowalski 14 Daughter None New York
54 John Jr. Kowalski 12 Son None New York
55 Mary Kowalski THIS PERSON 9 Daughter None New York
56 Dorothy Kowalski 7 Daughter None New York
57 Leonard Kowalski 4 Son None New York
58 Joseph Sterenski 60 Head Laborer Austria
59 Mary Sterenski 52 Wife None Austria
60 John Sterenski 23 Son Laborer New York
61 Joseph Sterenski 21 Son Laborer New York
62 Mary Sterenski 19 Daughter Student New York
63 Elizabeth Sterenski 17 Daughter Housekeeper New York
64 George Sterenski 16 Son None New York
65 Michael Sterenski 14 Son None New York
66 Helen Sterenski 11 Daughter None New York
67 William Sterenski 5 Son None New York
68 Catherine Sterenski 2 Daughter None New York
69 Mary Berrigan 40 Head Operator New York
70 Mary Puska 59 Head Housekeeper Austria
71 Louis Puska 20 Son Helper New York
72 William Puska 18 Grandson Laborer New York
73 Roberta Miller 30 Head Housework New York
74 Edward Jr. Miller 4 Son None New York
75 James Delano 11 Son None New York
76 John Stoffa 57 Head Laborer Austria
77 Mary Stoffa 60 Wife None Austria
78 John Jr. Stoffa 26 Son Tallyman New York
79 Michael Stoffa 25 Son Tallyman New York
80 Joseph Stoffa 19 Son Clerk New York
81 Arthur Jerkes 30 Head Laborer New York
82 Rita Jerkes 30 Wife None New York
83 Arthur Jr. Jerkes 9 Son None New York
84 Rhoda Jerkes 5 Daughter None New York
85 Arthur Jerkes 4 Son None New York
86 Charles Jerkes 2 Son None New York
87 John Havene 32 Head Laborer Austria
88 Helen Havene 28 Wife None New York
89 Michael Dubroski 33 Head Laborer Austria
90 Susie Dubroski 29 Wife None New York
91 Mary Dubroski 9 Daughter None New York
92 Theresa Dubroski 8 Daughter None New York
93 Michael Dubroski 6 Son None New York
94 Joseph Dubroski 5 Son None New York
95 William Dubroski 2 Son None New York
96 Brigine Dubroski 1 Daughter None New York
97 Mary Natka 60 Head None Austria
98 Andrew Natka 33 Son Mechanic Austria

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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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