William Schaefer — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Baltimore, Maryland

Our Model Tree links this William Schaefer across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 7-person household.

Age 45 b. ~1885 Male Head Born: Maryland Married

1930 Census Record Details

Census Year	1930
Location	Baltimore, Maryland
Surname	Schaefer
Given Name	William M
Relationship to Head	Head
Sex	M
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Maryland
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Additional Details
Can Read/Write	Yes
Home Owned/Rented	No
Home Value / Rent	O
Radio Set	7400
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland
Township / Ward	Baltimore City
Est. Birth Year	~1885

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.

7 people recorded at the same address in the 1930 census.

Name	Relation to head	Relative to William	Age	Birth yr
Frances Schaefer	Spouse	—	41	~1889
Juanita Schaefer	Daughter	—	20	~1910
Richard Schaefer	Son	—	8	~1922
Ruth Schaefer	Daughter	—	17	~1913
William Schaefer	Son	—	18	~1912
William Schaefer	Head	—	45	~1885
Maynard Schaefer	Son	—	13	~1917

Census Appearances

1930

Baltimore, Maryland

Head, age 45

Baltimore, Maryland · implied b. ~1885 — 7 household members

Surname	Schaefer
Given Name	William M
Relationship to Head	Head
Sex	M
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Maryland
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Can Read/Write	Yes
Home Owned/Rented	No
Home Value / Rent	O
Radio Set	7400
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1940

Baltimore-City-County, Maryland

Head, age 55

Baltimore-City-County, Maryland · implied b. ~1885 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schaeffer
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	55
Marital Status	Divorced
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Occupation	PLUMBER
Industry	CONTRACT
Class of Worker	PW
Hours Worked	38
Income (1939)	1000
Highest Grade	H-4
1935 Residence	Same place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

Model Tree

Linked across censuses

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

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This person

Anchor record

William Schaefer

Head · 1930 · age 45 · b. ~1885 · Maryland

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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 — Baltimore, Maryland Open full size

Page Contents

50 people indexed on this census page (ia:1930:15thcensus867unit:0964)

Line	Name	Age	Relation	Occupation	Birthplace
51	Leo Finn	22	Son	Chauffeur	Maryland
52	John G Bensel	38	Head	Controler & Junior	Maryland
53	Pearl Bensel	38	Wife	—	Maryland
54	Pearl I Bensel	9	Daughter	—	Maryland
55	John F Polek	41	Head	Butcher	Poland
56	Ida Polek	41	Wife	—	Maryland
57	Maria Polek	18	Daughter	—	Maryland
58	Melvin Polek	17	Son	—	Maryland
59	John Polek	14	Son	—	Maryland
60	Walter Polek	9	Son	—	Maryland
61	Leo Polek	4	Son	—	Maryland
62	Geo W Schmalzer	65	Head	—	Maryland
63	Emma V Schmalzer	62	Wife	—	Maryland
64	John Heck	49	Son-in-law	Clerk	Maryland
65	Rosa V Heck	39	Daughter	—	Maryland
66	Mildred V Heck	17	Granddaughter	—	Maryland
67	Millard P Schmalzer	29	Son	—	Maryland
68	Joseph J Knoedler	42	Head	Chauffeur	Maryland
69	Rose K Knoedler	38	Wife	—	Pennsylvania
70	Anthony G Dormowicz	23	Head	Agent	Maryland
71	Carolyn Dormowicz	21	Wife	—	New Jersey
72	Anthony G Jr Dormowicz	0	Son	—	Maryland
73	George Kuchta	53	Father-in-law	Boiler Maker	Maryland
74	Mary Kuchta	39	Mother-in-law	—	Poland
75	John J Kenney	45	Head	Com. Traveler	Maryland
76	Edna Kenney	29	Wife	—	New York
77	Mary Houseman	57	Mother-in-law	—	New York
78	Lester Houseman	28	Brother-in-law	Com. Traveler	New York
79	Louis Gaertner	27	Head	Manager	Maryland
80	Anna Gaertner	25	Wife	—	Maryland
81	Robert A Gaertner	2	Son	—	Maryland
82	Charles F Schmidt	53	Head	—	Maryland
83	Ada M Schmidt	44	Wife	Produce Dealer	Maryland
84	William M Schaefer THIS PERSON	45	Head	—	Maryland
85	Frances Schaefer	41	Wife	—	Maryland
86	Juanita M Schaefer	20	Daughter	Priv. Secty.	New York
87	William N Jr Schaefer	18	Son	—	New York
88	Ruth E Schaefer	17	Daughter	—	Pennsylvania
89	Maynard F Schaefer	13	Son	—	Pennsylvania
90	Richard B Schaefer	8	Son	—	Maryland
91	Stephen Hewitt	64	Head	Collector	Maryland
92	Elizabeth Hewitt	64	Wife	—	Maryland
93	Earl D Hewitt	32	Son	Policeman	Maryland
94	Grace Hewitt	29	Daughter-in-law	—	Maryland
95	Ratharine Hewitt	8	Granddaughter	—	Maryland
96	Virginia Hewitt	4	Granddaughter	—	Maryland
97	Louis Pokorny	41	Head	Letter Carrier	New York
98	Anna Pokorny	36	Wife	—	Maryland
99	Louis R Pokorny	18	Son	Order Clerk	Maryland
100	Alvin J Pokorny	12	Son	—	Maryland

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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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