William Irwin — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this William Irwin across the 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 4-person household.

Age 43 b. ~1897 Male Head Born: New York Married

1940 Census Record Details

Census Year	1940
Location	New-York-County, New York
Surname	Irwin
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	New York
1935 Residence (City)	New York City
1935 Residence (County)	New York
Additional Details
Occupation	Salesman
Industry	Retail Grocery Store
Class of Worker	PW
Hours Worked	54
Income (1939)	2961
Highest Grade	H 8
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Occupation	Salesman
Township / Ward	New York City
Est. Birth Year	~1897

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.

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

Name	Relation to head	Relative to William	Age	Birth yr
Adella Irwin	Spouse	—	39	~1901
William Irwin	Head	—	43	~1897
Rita Irwin	Daughter	—	7	~1933
Dorothy Irwin	Daughter	—	4	~1936

Census Appearances

1930

New York, …

Son, age 34

New York, New York · implied b. ~1896 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Irwin
Given Name	William W.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	34
Marital Status	Single
Birthplace	New York
Father's Birthplace	Northern Ireland
Mother's Birthplace	Northern Ireland
Occupation	Salesman
Industry	Retail Dry
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	English
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

New-York-County, New …

Head, age 43

New-York-County, New York · implied b. ~1897 — 4 household members

Surname	Irwin
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	New York
1935 Residence (City)	New York City
1935 Residence (County)	New York
Occupation	Salesman
Industry	Retail Grocery Store
Class of Worker	PW
Hours Worked	54
Income (1939)	2961
Highest Grade	H 8
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 William Irwin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

William Irwin

Head · 1940 · age 43 · b. ~1897 · New York

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — New-York-County, New York Open full size

Page Contents

33 people indexed on this census page (nara:1940:m-t0627-02676-00807)

Line	Name	Age	Relation	Occupation	Birthplace
1	Patrick J. Doherty	9	Son	—	New York
2	Gerard Peporte	50	Head	Letter Carrier	Luxembourg
3	Catherine Peporte	49	Wife	—	Luxembourg
4	Otto Grathhorn	59	Head	Plumber	New York
5	Agnes Grathhorn	52	Wife	—	New York
6	Frank Grathhorn	22	Son	Plumber'S Helper	New York
7	Edward Mcgowan	30	Son	Substitute Examiner	New York
8	Henry Rother	82	Father-in-law	—	Illinois
9	William Irwin THIS PERSON	43	Head	Salesman	New York
10	Adella Irwin	39	Wife	—	New York
11	Rita Irwin	7	Daughter	—	New York
12	Dorothy Irwin	4	Daughter	—	New York
13	Olai Eiklid	36	Head	Assorter	Norway
14	Elena Eiklid	37	Wife	—	Norway
15	Solweig Eiklid	15	Daughter	—	New York
16	Knut Knutsen	29	Lodger	Floor Layer	New York
17	Joseph Mccarthy	33	Head	Motorman	New York
18	Katherine Mccarthy	35	Wife	—	New York
19	Kathleen Mccarthy	5	Daughter	—	New York
20	Mary Mccarthy	2	Daughter	—	New York
21	Bridget Lynch	62	Lodger	—	New York
22	Pauline Kuhn	82	Head	—	New York
23	William M. Falck	44	Head	Bank Clerk	New York
24	Agnes L. Falck	47	Wife	—	New York
25	William Falck	18	Son	Mailing Clerk	New York
26	Frank J. Falck	14	Son	—	New York
27	Bertha Edmiston	49	Head	Head Counterwoman	New Jersey
28	Geraldine Edmiston	17	Daughter	—	New York
29	Elizabeth Wagner	59	Head	Broker	New York
30	C. Robert Holm	28	Head	Clerk	New York
31	Olair Holm	30	Wife	Secretary	New York
32	Johanna Peterson	69	Mother-in-law	—	Sweden
33	—	75	Head	—	New York

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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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