John Gallagher — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Philadelphia-County, Pennsylvania

Our Model Tree links this John Gallagher across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 6-person household.

Age 47 b. ~1893 Male Head Born: Ireland Married

1940 Census Record Details

Census Year	1940
Location	Philadelphia-County, Pennsylvania
Surname	Gallagher
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	Philadelphia City
1935 Residence (County)	Philadelphia
Naturalization Status	Naturalized
Additional Details
Occupation	Operator
Industry	Refining
Class of Worker	PW
Hours Worked	36
Income (1939)	1900
Highest Grade	H 2
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland
Occupation	Operator
Township / Ward	Philadelphia City
Est. Birth Year	~1893

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
Catherine Gallagher	Daughter	—	14	~1926
Mary Gallagher	Daughter	—	10	~1930
John Gallagher	Head	—	47	~1893
Marie Gallagher	Other	—	19	~1921
John Gallagher	Son	—	12	~1928
Catherine Gallagher	Spouse	—	45	~1895

Census Appearances

1920

Philadelphia, Pennsylvania

Other, age 25

Philadelphia, Pennsylvania · implied b. ~1895 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Gallagher
Given Name	John
Relationship to Head	Boarder
Sex	M
Color / Race	White
Age	25
Marital Status	Single
Birthplace	Ireland
Year of Immigration	1911
Naturalization Status	Alien
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Laborer
Industry	Blast Furnace
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Irish
Birth Country	Ireland
Birthplace (normalized)	ireland

1930

Philadelphia, Pennsylvania

Other, age 34

Philadelphia, Pennsylvania · implied b. ~1896 — 11 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Gallagher
Given Name	John
Relationship to Head	Lodger
Sex	M
Color / Race	White
Age	34
Marital Status	Single
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1914
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read/Write	Yes
Mother Tongue	English
Veteran	No
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

Philadelphia-County, Pennsylvania

Head, age 47

Philadelphia-County, Pennsylvania · implied b. ~1893 — 6 household members

Surname	Gallagher
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	Philadelphia City
1935 Residence (County)	Philadelphia
Naturalization Status	Naturalized
Occupation	Operator
Industry	Refining
Class of Worker	PW
Hours Worked	36
Income (1939)	1900
Highest Grade	H 2
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links John Gallagher 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 Gallagher

Head · 1940 · age 47 · b. ~1893 · Pennsylvania

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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 — Philadelphia-County, Pennsylvania Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03730-00447)

Line	Name	Age	Relation	Occupation	Birthplace
1	Anna Gamble	57	Head	Cleaner	Penna.
2	Isabel Gamble	19	Daughter	New Worker	Penna.
3	John Gamble	16	Son	—	Penna.
4	Joseph Hougherty	28	Head	Driver	Penna.
5	Cecilia Hougherty	28	Wife	—	Penna.
6	Joanna Hougherty	2	Daughter	—	Penna.
7	Cecilia Hougherty	1	Daughter	—	Penna.
8	Catherine Schluth	31	Sister	—	Penna.
9	Catherine Schluth	12	Daughter	—	Penna.
10	Arthur Slaby	23	Head	Stock Clerk	Penna.
11	Anna Slaby	21	Wife	—	Penna.
12	Dolores Slaby	2	Daughter	—	Penna.
13	Joan Slaby	0	Daughter	—	Penna.
14	James Hudson	34	Head	Policeman	Penna.
15	Rosemary Hudson	29	Wife	—	Penna.
16	Rosemary Hudson	7	Daughter	—	Penna.
17	Francis Hudson	3	Son	—	Penna.
18	Anna La Savage	49	Head	Cook	Germany
19	Matilda La Savage	27	Daughter	Waitress	Penna.
20	John Gallagher THIS PERSON	47	Head	Operator	Ireland
21	Catherine Gallagher	45	Wife	—	Ireland
22	Catherine Gallagher	14	Daughter	—	Penna.
23	John Gallagher	12	Son	—	Penna.
24	Mary Gallagher	10	Daughter	—	Penna.
25	Marie Gallagher	19	Niece	—	Penna.
26	Frank Mastrangelo	31	Head	Chauffeur	Penna.
27	Emma Mastrangelo	29	Wife	—	Penna.
28	Daniel Shields	50	Head	Fireman	Penna.
29	Margaret Shields	40	Wife	—	Scotland
30	Daniel Shields	18	Son	—	Penna.
31	William Shields	56	Brother	Carpenter	Penna.
32	Samuel Crosby	74	Head	Engineer	Penna.
33	Alice Crosby	74	Wife	—	Germany
34	William Huston	32	Head	Chauffeur	Penna.
35	Beatrice Huston	25	Wife	—	Penna.
36	John Huston	5	Son	—	Penna.
37	Adolph Mullin	37	Head	Electrician	Penna.
38	Gertrude Mullin	38	Wife	—	Penna.
39	Betty Mullin	9	Daughter	—	Penna.
40	Shirley Mullin	1	Daughter	—	Penna.

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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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