Thomas Duffy — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Thomas Duffy across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 4-person household.

Age 39 b. ~1901 Male Head Born: New York Married

1940 Census Record Details

Census Year	1940
Location	New-York-County, New York
Surname	Duffy
Given Name	Thomas
Relationship to Head	Head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	New York
1935 Residence (City)	New York City
Additional Details
Occupation	Wire lather
Industry	Bldg. Construction
Class of Worker	PW
Hours Worked	28
Income (1939)	750
Highest Grade	No 6
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Occupation	Wire Lather
Township / Ward	New York City
Est. Birth Year	~1901

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 Thomas	Age	Birth yr
Irene Duffy	Daughter	—	10	~1930
James Duffy	Son	—	13	~1927
Helen Duffy	Spouse	—	33	~1907
Thomas Duffy	Head	—	39	~1901

Census Appearances

1920

New York, …

Other, age 19

New York, New York · implied b. ~1901 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Duffy
Given Name	Thomas
Relationship to Head	Step-son
Sex	M
Color / Race	White
Age	19
Marital Status	Single
Birthplace	New York
Father's Birthplace	New York
Mother's Birthplace	New York
Occupation	Laborer
Industry	Pier
Class of Worker	w
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1930

New York, …

Other, age 28

New York, New York · implied b. ~1902 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Duffy
Given Name	Tom
Relationship to Head	Boarder
Sex	M
Color / Race	Black
Age	28
Marital Status	Single
Birthplace	New York
Father's Birthplace	New York
Mother's Birthplace	New York
Occupation	Laborer
Industry	Rail Road
Class of Worker	W
Can Read/Write	Yes
Veteran	No
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

New-York-County, New …

Head, age 39

New-York-County, New York · implied b. ~1901 — 4 household members

Surname	Duffy
Given Name	Thomas
Relationship to Head	Head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	New York
1935 Residence (City)	New York City
Occupation	Wire lather
Industry	Bldg. Construction
Class of Worker	PW
Hours Worked	28
Income (1939)	750
Highest Grade	No 6
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 Thomas Duffy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Thomas Duffy

Head · 1940 · age 39 · b. ~1901 · 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

40 people indexed on this census page (nara:1940:m-t0627-02653-00627)

Line	Name	Age	Relation	Occupation	Birthplace
1	Ernest Zupsan	17	Son	—	New York
2	Thomas Duffy THIS PERSON	39	Head	Wire Lather	New York
3	Helen Duffy	33	Wife	Packer	New York
4	James Duffy	13	Son	—	New York
5	Irene Duffy	10	Daughter	—	New York
6	Frank Palka	26	Head	Elevator Operator	New York
7	Emily Palka	24	Wife	Attendant	New York
8	Edith Hitnodt	57	Head	Registrar	Iowa
9	Joseph Sallab	36	Head	Plumber	New York
10	Pauline Sallab	33	Wife	—	New York
11	William Sallab	11	Son	—	New York
12	John Moseley	32	Head	Plumber	Czechoslovakia
13	Mary Moseley	58	Mother	Laundress	Czechoslovakia
14	Martha Leary	45	Head	Bank Clerk	New York
15	Mary Pezely	20	Head	Packer	West Virginia
16	Theresa Gullone	20	Aunt	Waitress	Pennsylvania
17	Frank Bernat	52	Head	Chauffeur	Austria
18	Rudolph Riala	53	Head	Tailor	Czechoslovakia
19	Miroslav Sauern	37	Head	Waiter	Czechoslovakia
20	Sophie Sauern	36	Wife	—	Czechoslovakia
21	George Malini	38	Head	Pat. Driver	France
22	Marie Malini	39	Wife	—	Czechoslovakia
23	Charles Malini	14	Son	—	New York
24	Joseph Jr. Uvacik	25	Head	Baker	Czechoslovakia
25	Ernestine Uvacik	26	Wife	—	Czechoslovakia
26	Joseph Uvacik	0	Son	—	New York
27	Alex Uvacik	51	Father	Repairman	Austria
28	Joseph Pechark	27	Head	Clerk	Illinois
29	Lillian Pechark	22	Wife	Bookkeeper	New York
30	Thomas Golden	29	Head	Chauffeur	Pennsylvania
31	Mildred Golden	29	Wife	Nurse	Pennsylvania
32	Thomas Golden	4	Son	—	New York
33	Ann Suhrada	43	Head	Button Assorter	New York
34	Frank Mara	43	Head	Laborer	New York
35	Louis Wittich	51	Head	Carpenter	Hungary
36	Beatrice Wittich	43	Wife	—	Connecticut
37	Robert Wittich	20	Son	Salesman	New Jersey
38	Josephine Wittich	15	Daughter	—	New Jersey
39	Charles Romuika	46	Head	Chemist	New Jersey
40	Agnes Romuika	41	Wife	Waitress	New Jersey

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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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