Billy Smith — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Alameda, California

Our Model Tree links this Billy Smith across the 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 5-person household.

Age 2 b. ~1928 Male Son Born: California Single

1930 Census Record Details

Census Year	1930
Location	Alameda, California
Surname	Smith
Given Name	Billy
Relationship to Head	Son
Sex	M
Color / Race	White
Age	2
Marital Status	Single
Birthplace	California
Father's Birthplace	California
Mother's Birthplace	California
Additional Details
Birth State	California
Birth Country	United States
Birthplace (normalized)	california
Township / Ward	Oakland City
Est. Birth Year	~1928

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 1930 census.

Name	Relation to head	Relative to Billy	Age	Birth yr
Harold Smith	Head	—	33	~1897
Dorothy Smith	Spouse	—	25	~1905
Billy Smith	Son	—	2	~1928
Julia Goodall	Other	—	29	~1901
Martha Cotter	Other	—	55	~1875

Census Appearances

1930

Alameda, California

Son, age 2

Alameda, California · implied b. ~1928 — 5 household members

Surname	Smith
Given Name	Billy
Relationship to Head	Son
Sex	M
Color / Race	White
Age	2
Marital Status	Single
Birthplace	California
Father's Birthplace	California
Mother's Birthplace	California
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

1940

Alameda-County, California

Son, age 13

Alameda-County, California · implied b. ~1927 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Smith
Given Name	Bill
Relationship to Head	Son
Sex	M
Color / Race	White
Age	13
Marital Status	Single
Birthplace	California
1935 Residence (City)	Los Angeles
1935 Residence (County)	Los Angeles
Highest Grade	Hs 1
1935 Residence	California
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

Model Tree

Linked across censuses

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

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This person

Anchor record

Billy Smith

Son · 1930 · age 2 · b. ~1928 · California

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

Original Census Page

1930 US Federal Census — Alameda, California Open full size

Page Contents

50 people indexed on this census page (ia:1930:15thcensuspopula104unit:0463)

Line	Name	Age	Relation	Occupation	Birthplace
51	Hazel B. Baker	43	Head	—	California
52	Elizabeth B. Baker	17	Daughter	—	California
53	Robert H. Baker	11	Son	—	California
54	Andrew Christ	56	Head	Vice President	Germany
55	Daisy Christ	51	Wife	—	Colorado
56	Irene Shincke	18	Maid	Maid	California
57	Ray A. Dumann	46	Head	Realtor	Ohio
58	Gladys M. Dumann	37	Wife	—	California
59	Ray P. Dumann	10	Son	—	California
60	Charles R. Dumann	8	Son	—	California
61	Hazel Stockwell	33	Maid	Maid	California
62	F. G. Battram	49	Head	Mechanic	Canada-English
63	Florence E. Battram	39	Wife	—	Colorado
64	Joseph L. Lesser	56	Head	Dentist	Montana
65	Mabel G. Lesser	55	Wife	—	California
66	Loran T. Lesser	25	Son	—	California
67	Bessie F. Lesser	15	Daughter	—	California
68	Samuel E. Dalton	45	Head	Manager	Tennessee
69	Alice W. Dalton	39	Wife	—	Utah
70	Winifred Maycock	24	Sister-in-law	Clerk	California
71	William J. Mcdade	46	Head	Dentist	Pennsylvania
72	Anastasia Mcdade	44	Wife	Manager	Ireland-Free State
73	Michel J. Rourke	41	Brother-in-law	Watchman	Ireland-Free State
74	Ruth B. Rourke	37	Sister-in-law	—	Nevada
75	Frances E. Reilly	17	Granddaughter	—	California
76	Henry D. Cox	37	Head	Exporting	Australia
77	Filomena E. Cox	26	Wife	—	Massachusetts
78	Denhigh Cox	2	Son	—	California
79	Walter Brander	31	Head	Salesman	California
80	Dorothy Brander	27	Wife	—	California
81	Harold Smith	33	Head	Merchant	California
82	Dorothy Smith	25	Wife	—	California
83	Billy Smith THIS PERSON	2	Son	—	California
84	Martha Cotter	55	Nurse	Nurse	Texas
85	Julia Goodall	29	Maid	Maid	New York
86	St. Clair Seaman	50	Head	Physician	Vermont
87	Hazel Seaman	44	Wife	—	California
88	Geraldine Seaman	13	Daughter	—	California
89	Annie Corriaz	52	Head	—	California
90	H. T. Bird	28	Daughter	—	California
91	H. T. Jr. Bird	22	Son-in-law	Clerk	California
92	Eustesa Laraga	22	Servant	Servant	Philippines
93	Carlton A. Alsgood	31	Head	Buyer	California
94	Sally Alsgood	30	Wife	—	Massachusetts
95	Carlton A. Alsgood	5	Son	—	California
96	Priscilla Alsgood	1	Daughter	—	California
97	Henry W. Bunke	35	Head	Merchant	Washington
98	Adelle Bunke	36	Wife	Merchant	California
99	Adelle Bunke	12	Daughter	—	Washington
100	Winifred Bunke	4	Daughter	—	California

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1930 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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