John Griffin — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Griffin across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 6-person household.

Age 60 b. ~1880 Male Head Born: Ireland Married

1940 Census Record Details

Census Year	1940
Location	New-York-County, New York
Surname	Griffin
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	New York City
1935 Residence (County)	New York
Naturalization Status	Naturalized
Additional Details
Occupation	Fireman
Industry	Apartment House
Class of Worker	PW
Hours Worked	40
Income (1939)	2400
Highest Grade	8
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland
Occupation	Fireman
Township / Ward	New York City
Est. Birth Year	~1880

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Veronica Griffin	Daughter	—	22	~1918
John Griffin	Head	—	60	~1880
Elizabeth Doonan	Other	—	60	~1880
James Griffin	Son	—	25	~1915
Dennis Griffin	Son	—	27	~1913
Alice Griffin	Spouse	—	56	~1884

Census Appearances

1920

New York, …

Other, age 38

New York, New York · implied b. ~1882 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Griffin
Given Name	John
Relationship to Head	Roomer
Sex	M
Color / Race	White
Age	38
Marital Status	Single
Birthplace	Ireland
Year of Immigration	1908
Naturalization Status	First papers filed
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Guard
Industry	Elevated
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth Country	Ireland
Birthplace (normalized)	ireland

1930

New York, …

Other, age 50

New York, New York · implied b. ~1880 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Griffin
Given Name	John
Relationship to Head	Boarder
Sex	M
Color / Race	White
Age	50
Marital Status	Single
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1880
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Laborer
Industry	Advertising
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	English
Veteran	No
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

New-York-County, New …

Head, age 60

New-York-County, New York · implied b. ~1880 — 6 household members

Surname	Griffin
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	New York City
1935 Residence (County)	New York
Naturalization Status	Naturalized
Occupation	Fireman
Industry	Apartment House
Class of Worker	PW
Hours Worked	40
Income (1939)	2400
Highest Grade	8
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links John Griffin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

John Griffin

Head · 1940 · age 60 · b. ~1880 · 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-t0627-02677-00332)

Line	Name	Age	Relation	Occupation	Birthplace
1	Samuel Giffin	36	Head	Buyer	New York
2	Bessie Giffin	32	Wife	—	New York
3	Arthur Giffin	8	Son	—	New York
4	Rosalind Giffin	6	Daughter	—	New York
5	Jeffrey Giffin	2	Son	—	New York
6	Claudio Rosado	38	Head	Electrical Instr.	Puerto Rico
7	Monserrate Rosado	66	Mother	—	Puerto Rico
8	Carmen Rosado	18	Wife	—	Puerto Rico
9	Fernanda Cotto	34	Sister	—	Puerto Rico
10	George Cotto	8	Nephew	—	Puerto Rico
11	Mercedes Duran	30	Sister	—	Puerto Rico
12	Claudio Duran	35	Brother	Oiler Engine Room	Spain
13	Anthony Duran	0	Nephew	—	New York
14	Albert Schaffer	39	Head	Waiter	England
15	Margaret Schaffer	39	Wife	—	New York
16	Iris Schaffer	6	Daughter	—	New York
17	Arza Schaffer	4	Daughter	—	New York
18	James Hoppen	44	Lodger	Statistician Clerk	New York
19	Fillagar	77	Lodger	—	New York
20	Joseph Smith	64	Head	Mailer	Russia
21	Ray Smith	49	Wife	—	England
22	Pauline Greenberg	23	Daughter	Typist	New York
23	Abraham Gleich	41	Head	Executive	Poland
24	Hattie Gleich	71	Mother	—	Poland
25	Ray Gleich	45	Sister	Hand Sewer	Poland
26	John Griffin THIS PERSON	60	Head	Fireman	Ireland
27	Alice Griffin	56	Wife	—	Ireland
28	Dennis Griffin	27	Son	—	New York
29	James Griffin	25	Son	Stock Clerk	New York
30	Veronica Griffin	22	Daughter	Stenographer	New York
31	Elizabeth Doonan	60	Sister in Law	Home Keeper	New York
32	Charles Singahust	52	Head	Elevator Operator	New York
33	Lena Singahust	78	Mother	—	Poland
34	Sarah Singahust	75	Sister	—	Poland
35	Sam Singahust	49	Brother	Shipping Clerk	New York
36	Charlotte Singahust	21	Sister	Hand Worker	New York
37	Emery Pataki	40	Head	Mechanic	Hungary
38	Clara Pataki	34	Wife	—	Hungary
39	Robert Pataki	16	Son	—	Hungary
40	Elenor Vasco	40	Lodger	Child Nurse	Hungary

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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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