Log in Sign up free

MK

Mary Kowalski — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Queens, New York

Our Model Tree links this Mary Kowalski across the 1920 and 1930 US Censuses in Queens, New York (XGBoost, ~Confirmed) — first a daughter (b.~1912), then head of a 8-person household.

Age 18 b. ~1912 Female Daughter Born: New York Single

1930 Census Record Details

Census Year	1930
Location	Queens, New York
Surname	Kowalski
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	18
Marital Status	Single
Birthplace	New York
Father's Birthplace	Poland
Mother's Birthplace	Poland
Additional Details
Occupation	Packer
Industry	Factory
Class of Worker	W
Can Read/Write	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Occupation	Packer
Township / Ward	New York City
Est. Birth Year	~1912

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Kowalski	Spouse	—	52	~1878
Mary Kowalski	Daughter	—	18	~1912
Frank Kowalski	Head	—	52	~1878
Stanley Kowalski	Son	—	11	~1919
Susie Kowalski	Daughter	—	28	~1902
Stella Kowalski	Daughter	—	16	~1914
Anna Kowalski	Daughter	—	23	~1907
Sophie Kowalski	Daughter	—	21	~1909

Census Appearances

1920

Queens, New …

Daughter, age 7

Queens, New York · implied b. ~1913 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kowalski
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	7
Marital Status	Single
Birthplace	New York
Father's Birthplace	Poland
Mother's Birthplace	Poland
Speaks English	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1930

Queens, New …

Daughter, age 18

Queens, New York · implied b. ~1912 — 8 household members

Surname	Kowalski
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	18
Marital Status	Single
Birthplace	New York
Father's Birthplace	Poland
Mother's Birthplace	Poland
Occupation	Packer
Industry	Factory
Class of Worker	W
Can Read/Write	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

Model Tree

Linked across censuses

Our Model Tree links Mary Kowalski across 2 US Census years (1920 and 1930) in Queens, New York, using XGBoost record linkage.

Show:

This person

Anchor record

Mary Kowalski

Daughter · 1930 · age 18 · b. ~1912 · New York

★ You are viewing this record

Sibling

Susie Kowalski

Sibling · 1930 · age 28

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Stanley Kowalski

Sibling · 1930 · age 11

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Stella Kowalski

Sibling · 1930 · age 16

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Sophie Kowalski

Sibling · 1930 · age 21

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Anna Kowalski

Sibling · 1930 · age 23

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 — Queens, New York Open full size

Page Contents

50 people indexed on this census page (ia:1930:newyorkcensus00reel1596:0837)

Line	Name	Age	Relation	Occupation	Birthplace
1	Clovis Martin	20	Head	Mechanic	New York
2	Anna Martin	19	Wife	—	New York
3	Joseph Simon	37	Head	Cabinet Maker	Czecho Slov
4	Amelia Simon	28	Wife	—	Czecho Slov
5	William Simon	5	Son	—	New York
6	Helen Simon	0	Daughter	—	New York
7	Louis Lupik	30	Head	Butcher	Austria
8	Anna Lupik	22	Wife	—	New York
9	Martha Lupik	3	Daughter	—	New York
10	Frank Kowalski	52	Head	—	Poland
11	Mary Kowalski	52	Wife	—	Poland
12	Susie Kowalski	28	Daughter	—	New York
13	Anna Kowalski	23	Daughter	Stitcher	New York
14	Sophie Kowalski	21	Daughter	Operator	New York
15	Mary Kowalski THIS PERSON	18	Daughter	Packer	New York
16	Stella Kowalski	16	Daughter	Examiner	New York
17	Stanley Kowalski	11	Son	—	New York
18	Charles Iova	38	Head	Cabinet Maker	Hungary
19	Anna Iova	31	Wife	—	Hungary
20	Charles Iova	7	Son	—	New York
21	John Iova	37	Head	Cabinet Maker	Hungary
22	Anna Iova	29	Wife	—	Hungary
23	John Iova	5	Son	—	New York
24	Frank Heger	45	Head	Baker	Germany
25	Johanna Heger	41	Wife	—	Hungary
26	Millard Miller	9	Boarder	—	Pennsylvania
27	Mary Ortman	44	Head	Machinist	Hungary
28	Helen Ortman	22	Daughter	—	New York
29	Lawrence Lundy	36	Head	Chauffeur	New York
30	Sarah Lundy	23	Wife	—	New York
31	Dominick Nemeth	61	Head	—	Hungary
32	Elizabeth Nemeth	36	Daughter	Operator	New York
33	Steve Szeker	21	Boarder	Mechanic	New York
34	Ralph Nemeth	34	Head	Manager	Hungary
35	Helen Nemeth	33	Wife	—	Hungary
36	Ernest Nemeth	13	Son	—	New York
37	Mildred Nemeth	10	Daughter	—	New York
38	Paul Zapoy	49	Head	Bookbinder	Hungary
39	Veronica Zapoy	44	Wife	—	Hungary
40	Paul Jr. Zapoy	9	Son	—	New York
41	Edward Desmacher	17	Boarder	—	New York
42	Joseph Carr	10	Boarder	—	New York
43	Peter Scanlon	10	Boarder	—	New York
44	Louis Morris	15	Boarder	—	New York
45	Dominick Colucci	36	Head	Engineer	Italy
46	Grace Colucci	29	Wife	—	Italy
47	Michael Colucci	23	Son	Moulder	New York
48	Joseph Colucci	19	Son	Tailor	New York
49	Frank Colucci	18	Son	Tailor	New York
50	Anna Colucci	17	Daughter	Packer	New York

Search for Mary Kowalski

All Mary Kowalski Census Records Discover Kowalski Family Tree

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)

Report inaccurate data