John Irwin — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Hudson-County, New Jersey

Our Model Tree links this John Irwin across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.

Age 53 b. ~1887 Male Head Born: New Jersey Married

1940 Census Record Details

Census Year	1940
Location	Hudson-County, New Jersey
Surname	Irwin
Given Name	John, J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	53
Marital Status	Married
Birthplace	New Jersey
1935 Residence (City)	Jersey City
1935 Residence (County)	Hudson
Additional Details
Occupation	Police Lieutenant
Industry	Police Dept.
Class of Worker	GW
Highest Grade	H-3
1935 Residence	Same place
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey
Occupation	Police Lieutenant
Township / Ward	Jersey City
Est. Birth Year	~1887

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Anna Irwin	Spouse	—	41	~1899
Eleanor Irwin	Daughter	—	21	~1919
John Irwin	Head	—	53	~1887
Gilbert Irwin	Son	—	27	~1913
Elizabeth Irwin	Daughter	—	30	~1910

Census Appearances

1930

Hudson, New …

Head, age 43

Hudson, New Jersey · implied b. ~1887 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Irwin
Given Name	John J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	New Jersey
Age at First Marriage	19
Father's Birthplace	Irish Free State
Mother's Birthplace	Pennsylvania
Occupation	Lieutenant
Industry	Police Dept.
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	50.00
Radio Set	R
Veteran	No
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey

1940

Hudson-County, New …

Head, age 53

Hudson-County, New Jersey · implied b. ~1887 — 5 household members

Surname	Irwin
Given Name	John, J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	53
Marital Status	Married
Birthplace	New Jersey
1935 Residence (City)	Jersey City
1935 Residence (County)	Hudson
Occupation	Police Lieutenant
Industry	Police Dept.
Class of Worker	GW
Highest Grade	H-3
1935 Residence	Same place
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey

Model Tree

Linked across censuses

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

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This person

Anchor record

John Irwin

Head · 1940 · age 53 · b. ~1887 · New Jersey

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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 — Hudson-County, New Jersey Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02411-00286)

Line	Name	Age	Relation	Occupation	Birthplace
41	Florence, M. Witley	54	Wife	—	New York
42	Florence, M. Witley	15	Daughter	—	New York
43	John, J. Irwin THIS PERSON	53	Head	Police Lieutenant	New Jersey
44	Anna, L. Irwin	41	Wife	—	New Jersey
45	Elizabeth, C. Irwin	30	Daughter	School Teacher	New Jersey
46	Gilbert, R. Irwin	27	Son	Electrician Helper	New Jersey
47	Eleanor, F. Irwin	21	Daughter	Nurse	New Jersey
48	Charles Berito	59	Head	Route Salesman	Italy
49	Marie, A. Berito	52	Wife	—	Italy
50	Francis Tyler	59	Head	Salesman	New Jersey
51	Anna, M. Tyler	57	Wife	—	New Jersey
52	John, L. Tyler	32	Son	Bookkeeper Messenger	New Jersey
53	Emil Schiff	34	Head	Baker	Germany
54	Emma, R. Schiff	34	Wife	—	Germany
55	Clara, A. Schiff	10	Daughter	—	New York
56	Edward, J. Flynn	43	Head	By Asst Clerk	New Jersey
57	Rose, C. Flynn	43	Wife	—	New Jersey
58	Rose Marie Flynn	10	Daughter	—	New Jersey
59	Edward, J. Jr. Flynn	7	Son	—	New Jersey
60	Ellinda, C. Heuser	62	Head	—	Irish Free State
61	Anna, G. Heuser	34	Daughter	Clerk	New Jersey
62	Thomas, M. O'Neill	40	Head	Accountant	New York
63	Veronica, M. O'Neill	37	Wife	—	New York
64	Kathleen O'Neill	6	Daughter	—	New York
65	Emil, P. Herzenberg	69	Head	Shipping Clerk	Germany
66	Ida Herzenberg	67	Wife	—	Missouri
67	George, P. Herzenberg	44	Son	Pressman	New York
68	Edward, E. Herzenberg	33	Son	Pressman	New York
69	John, A. Hatzel	46	Head	Painter	New York
70	Elizabeth, A. Hatzel	50	Wife	—	New York
71	John, H. Hatzel	23	Son	Underwriter	New Jersey
72	Frank, J. Hatzel	18	Son	Mail Clerk	New Jersey
73	Harold, J. Hatzel	14	Son	—	New Jersey
74	Henry, A. Maas	52	Head	Carpenter	New Jersey
75	Katherine, C. Maas	41	Wife	—	Rhode Island
76	Raymond, F. Maas	17	Son	—	New Jersey
77	Dorothy, V. Maas	13	Daughter	—	New Jersey
78	Albert Wolf	72	Head	Baker	Germany
79	Minnie Wolf	44	Daughter	—	New Jersey
80	Charles, F. Wolf	32	Son	Radio Repair	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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