John Gallagher — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Alameda-County, California

Our Model Tree links this John Gallagher across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 5-person household.

Age 64 b. ~1876 Male Head Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Alameda-County, California
Surname	Gallagher
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	64
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Oakland
1935 Residence (County)	Alameda
Additional Details
Occupation	Salesman
Industry	Products
Class of Worker	PW
Hours Worked	40
Income (1939)	2400
Highest Grade	H-1
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Occupation	Salesman
Township / Ward	Oakland
Est. Birth Year	~1876

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
John Gallagher	Head	—	64	~1876
Gertrude Gallagher	Son	—	26	~1914
John Gallagher	Son	—	28	~1912
Paul Gallagher	Son	—	30	~1910
Rose Gallagher	Spouse	—	63	~1877

Census Appearances

1920

Alameda, California

Head, age 43

Alameda, California · implied b. ~1877 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Gallagher
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Salesman
Industry	Building Material
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	M
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Alameda, California

Head, age 54

Alameda, California · implied b. ~1876 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Gallagher
Given Name	John S.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	54
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	23
Father's Birthplace	England
Mother's Birthplace	North Ireland
Occupation	Salesman
Industry	Playground
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	6000
Radio Set	R
Veteran	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Alameda-County, California

Head, age 64

Alameda-County, California · implied b. ~1876 — 5 household members

Surname	Gallagher
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	64
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Oakland
1935 Residence (County)	Alameda
Occupation	Salesman
Industry	Products
Class of Worker	PW
Hours Worked	40
Income (1939)	2400
Highest Grade	H-1
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

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.

Show:

This person

Anchor record

John Gallagher

Head · 1940 · age 64 · b. ~1876 · California

★ You are viewing this record

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Alameda-County, California Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00439-00061)

Line	Name	Age	Relation	Occupation	Birthplace
41	Myrtle Woolley	53	Mother	Shirt Finisher	Nebraska
42	Robert Rector	15	Nephew	—	California
43	Frank R. Flattrich	28	Head	Stereotyper	California
44	Ruth Flattrich	22	Wife	—	Minnesota
45	Harvey Flattrich	7	Son	—	California
46	Charles Flattrich	5	Son	—	California
47	Isaac Flattrich	3	Son	—	California
48	Kenneth Watt	37	Head	Mechanic	New York
49	Lillian Watt	34	Wife	—	New York
50	Dorothy Watt	17	Daughter	—	California
51	George Watt	16	Son	—	California
52	Kenneth Watt	11	Son	—	California
53	Doreen Watt	5	Daughter	—	California
54	Harvey Mills	66	Head	—	Nevada
55	Alice Mills	58	Wife	—	California
56	Viola Mills	33	Daughter	Maid	California
57	Blanche Mills	32	Daughter	Typist	California
58	Francis Mills	31	Son	Florist	California
59	Fred Mills	18	Son	New Worker	California
60	Ruth Mills	13	Daughter	—	California
61	Robert Mills	11	Son	—	California
62	Carole Mills	4	Daughter	—	California
63	Edward Zaftraub	68	Head	—	California
64	Otto Lafranchi	60	Head	Proprietor	California
65	Marguerite Lafranchi	43	Wife	—	California
66	Frances Lafranchi	23	Daughter	Operator	California
67	John Gallagher THIS PERSON	64	Head	Salesman	Ohio
68	Rose Gallagher	63	Wife	—	Irish Free State
69	Paul Gallagher	30	Son	Shipping Clerk	California
70	John Gallagher	28	Son	Salesman	California
71	Gertrude Gallagher	26	Son	Stenographer	California
72	Mitchell Wood	25	Head	Salesman	Kansas
73	Ira Wood	26	Wife	—	Iowa
74	Robert Duffing	26	Head	Cashier	Kansas
75	Verna Duffing	24	Wife	—	Kansas
76	Darlene Duffing	4	Daughter	—	Kansas
77	Bobbie Duffing	2	Son	—	Kansas
78	Michael Clasby	69	Head	—	California
79	Annie Clasby	59	Wife	—	New York
80	Elmer Clasby	37	Son	Clerk	California

Search for John Gallagher

All John Gallagher Census Records Discover Gallagher Family Tree

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)

Report inaccurate data