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Mary Irwin — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · New York, New York

Our Model Tree links this Mary Irwin across the 1930 and 1940 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.

Age 5 b. ~1925 Female Daughter Born: New York Single

1930 Census Record Details

Census Year	1930
Location	New York, New York
Surname	Irwin
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	5
Marital Status	Single
Birthplace	New York
Father's Birthplace	New York
Mother's Birthplace	New York
Additional Details
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Township / Ward	New York City
Est. Birth Year	~1925

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
James Irwin	Head	—	41	~1889
John Irwin	Son	—	9	~1921
Mary Irwin	Daughter	—	5	~1925
Mary Irwin	Spouse	—	38	~1892
James Irwin	Son	—	15	~1915
William Irwin	Son	—	11	~1919
Robert Irwin	Son	—	13	~1917
Edward Irwin	Son	—	7	~1923

Census Appearances

1930

New York, …

Daughter, age 5

New York, New York · implied b. ~1925 — 8 household members

Surname	Irwin
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	5
Marital Status	Single
Birthplace	New York
Father's Birthplace	New York
Mother's Birthplace	New York
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

New-York-County, New …

Daughter, age 16

New-York-County, New York · implied b. ~1924 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Irwin
Given Name	Margaret
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	16
Marital Status	Single
Birthplace	New York
1935 Residence (City)	Manhattan
1935 Residence (County)	New York
Class of Worker	0
Highest Grade	H 3
1935 Residence	Same Place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

Model Tree

Linked across censuses

Our Model Tree links Mary Irwin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Mary Irwin

Daughter · 1930 · age 5 · b. ~1925 · New York

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Sibling

Edward Irwin

Sibling · 1930 · age 7

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

William Irwin

Sibling · 1930 · age 11

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Robert Irwin

Sibling · 1930 · age 13

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

John Irwin

Sibling · 1930 · age 9

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

James Irwin

Sibling · 1930 · age 15

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 — New York, New York Open full size

Page Contents

50 people indexed on this census page (ia:1930:newyorkcensus00reel1629:0363)

Line	Name	Age	Relation	Occupation	Birthplace
1	May	28	Daughter	Bookkeeper	New York
2	Marion	20	Daughter	—	New York
3	Dorothy	18	Daughter	—	New York
4	Ruth	16	Daughter	—	New York
5	James Irwin	41	Head	Collector	New York
6	Mary Irwin	38	Wife	—	New York
7	James Irwin	15	Son	—	New York
8	Robert Irwin	13	Son	—	New York
9	William Irwin	11	Son	—	New York
10	John Irwin	9	Son	—	New York
11	Edward Irwin	7	Son	—	New York
12	Mary Irwin THIS PERSON	5	Daughter	—	New York
13	Fred Peter	52	Head	Fireman	New York
14	Caroline Peter	45	Wife	—	New York
15	Fred Jr. Peter	21	Son	Salesman	New York
16	Wilbur Hill	25	Lodger	Battery Mechanic	Pennsylvania
17	Thomas H. Bowman	58	Head	Contractor	New York
18	Anna M. Bowman	56	Wife	—	New York
19	Harold J. Bowman	27	Son	Artist	New York
20	Helen Bowman	25	Daughter-in-law	Teacher	New York
21	Robert Bowman	22	Son	—	New York
22	John Larkin	42	Head	Foreman	New York
23	Mary Larkin	40	Wife	—	Italy
24	John Larkin	16	Son	—	New York
25	Mary Larkin	14	Daughter	—	New York
26	Catherine Larkin	12	Daughter	—	New York
27	Margaret Larkin	10	Daughter	—	New York
28	James Larkin	8	Son	—	New York
29	William Larkin	6	Son	—	New York
30	Thomas Larkin	4	Son	—	New York
31	Joseph Larkin	2	Son	—	New York
32	Theresa Larkin	0	Daughter	—	New York
33	Theresa Larkin	38	Sister	—	Italy
34	James Larkin	36	Brother	Engineer	New York
35	Thomas Larkin	27	Brother	—	Canada Eng
36	William Larkin	32	Nephew	Assembler	Canada Eng
37	John Snyder	49	Head	Salesman	Pennsylvania
38	Mary Snyder	46	Wife	—	Pennsylvania
39	John Snyder	21	Son	—	Pennsylvania
40	Mary Snyder	19	Daughter	—	Pennsylvania
41	Charles Snyder	15	Son	Sheet Metal Worker	New York
42	Alice Snyder	42	Wife	—	New York
43	Charles Snyder	17	Son	—	New York
44	Alice Snyder	10	Daughter	—	New York
45	William Snyder	20	Son	Truckman	New York
46	Mildred Snyder	20	Wife	Assistant	New Jersey
47	John Snyder	58	Head	Sales Manager	New York
48	Mary Snyder	51	Wife	Saleslady	New York
49	John Snyder	28	Son	Service Man	Illinois
50	Mary Snyder	24	Daughter	—	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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