John Mcelroy — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Mcelroy across the 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a head (b.~1909), then head of a 4-person household.

Age 31 b. ~1909 Male Head Born: New York Married

1940 Census Record Details

Census Year	1940
Location	Bronx-County, New York
Surname	McElroy
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	31
Marital Status	Married
Birthplace	New York
1935 Residence (City)	New York
1935 Residence (County)	Bronx
Additional Details
Occupation	Clerk
Industry	Cutlery & Steel
Class of Worker	PW
Hours Worked	50
Income (1939)	2080
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Occupation	Clerk
Township / Ward	New York
Est. Birth Year	~1909

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 John	Age	Birth yr
Lucy Mcelroy	Spouse	—	34	~1906
Dorothy Mcelroy	Daughter	—	2	~1938
John Mcelroy	Head	—	31	~1909
Dorothy Mcelroy	Daughter	—	10	~1930

Census Appearances

1930

Bronx, New …

Son, age 20

Bronx, New York · implied b. ~1910 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McElroy
Given Name	John
Relationship to Head	Son
Sex	M
Color / Race	White
Age	20
Marital Status	Single
Birthplace	New York
Father's Birthplace	Irish Free State
Mother's Birthplace	Irish Free State
Occupation	Clerk
Industry	Bank
Class of Worker	W
Can Read/Write	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

Bronx-County, New …

Head, age 31

Bronx-County, New York · implied b. ~1909 — 4 household members

Surname	McElroy
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	31
Marital Status	Married
Birthplace	New York
1935 Residence (City)	New York
1935 Residence (County)	Bronx
Occupation	Clerk
Industry	Cutlery & Steel
Class of Worker	PW
Hours Worked	50
Income (1939)	2080
Highest Grade	Hs 2
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 John Mcelroy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

John Mcelroy

Head · 1940 · age 31 · b. ~1909 · 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 — Bronx-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02482-00453)

Line	Name	Age	Relation	Occupation	Birthplace
41	Oscar Grossi	33	Son	Patrolman	New York
42	Axel Bab Meurling	50	Head	Salesman	Sweden
43	Margaret Meurling	39	Wife	—	New York
44	Henry H. Homan	40	Head	Glass Cutter	New York
45	Dorothy Homan	40	Wife	—	New York
46	Margaret Doggart	72	Aunt	—	Northern Ireland
47	Frank Sprovere	47	Head	Carpenter	Italy
48	Philomena Sprovere	38	Wife	—	Italy
49	Frank Jr Sprovere	9	Son	—	New York
50	Edward De Luna	42	Head	Salesman	New York
51	Alma De Luna	45	Wife	—	New York
52	Anthony Caivano	52	Head	Bottler	Italy
53	Antoinette Caivano	46	Wife	—	Italy
54	Sylvio Caivano	24	Son	Multigraph Op	New York
55	Sidney Caivano	22	Son	Finisher	New York
56	Alfred Caivano	20	Son	Mechanic	New York
57	Adela Caivano	17	Daughter	—	New York
58	Dora Caivano	15	Daughter	—	New York
59	Gilda Caivano	8	Daughter	—	New York
60	Vincent Spagnolo	54	Head	Linotypist	Italy
61	Carmela Spagnolo	47	Wife	—	Italy
62	Frank Spagnolo	27	Son	Artist	Italy
63	Anna Spagnolo	21	Daughter	—	Massachusetts
64	Valerio Spagnolo	10	Son	—	New York
65	Josephine Spagnolo	46	Sister	Dressmaker	Italy
66	Harold Occhipinti	50	Head	Presser	Italy
67	Angelina Occhipinti	38	Wife	—	New York
68	Salvatore Occhipinti	16	Son	—	New York
69	Edith Occhipinti	10	Daughter	—	New York
70	John M. Curran	54	Head	Electrician	New York
71	Mabel Curran	47	Wife	—	Massachusetts
72	Robert Curran	18	Son	—	New York
73	Jane Curran	11	Daughter	—	New York
74	John Mcelroy THIS PERSON	31	Head	Clerk	New York
75	Lucy Mcelroy	34	Wife	—	New York
76	Dorothy Mcelroy	10	Daughter	—	New York
77	Dorothy Mcelroy	2	Daughter	—	New York
78	Herman Kords	43	Head	Mechanic	New York
79	Elsie Kords	41	Wife	—	New York
80	Johanna Kords	11	Daughter	—	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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