John Black — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Day, South Dakota

Our Model Tree links this John Black across the 1930 and 1940 US Censuses in Day, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 11-person household.

Age 39 b. ~1891 Male Head Born: South Dakota Married

1930 Census Record Details

Census Year	1930
Location	Day, South Dakota
Surname	Black
Given Name	John F
Relationship to Head	head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	South Dakota
Age at First Marriage	21
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Additional Details
Occupation	Farmer
Industry	General farm
Class of Worker	OA
Can Read/Write	Yes
Home Owned/Rented	R
Birth State	South Dakota
Birth Country	United States
Birthplace (normalized)	south dakota
Occupation	Farmer
Township / Ward	Grenville Township
Est. Birth Year	~1891

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Emelia Black	Daughter	—	6	~1924
Anna Black	Daughter	—	13	~1917
Cecelia Black	Daughter	—	7	~1923
George Black	Daughter	—		~1930
John Black	Head	—	39	~1891
Charles Black	Son	—	15	~1915
Leonard Black	Son	—	8	~1922
Jackson Black	Son	—	4	~1926
Herman Black	Son	—	12	~1918
John Black	Son	—	2	~1928
Marie Black	Spouse	—	35	~1895

Census Appearances

1930

Day, South …

Head, age 39

Day, South Dakota · implied b. ~1891 — 11 household members

Surname	Black
Given Name	John F
Relationship to Head	head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	South Dakota
Age at First Marriage	21
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Occupation	Farmer
Industry	General farm
Class of Worker	OA
Can Read/Write	Yes
Home Owned/Rented	R
Birth State	South Dakota
Birth Country	United States
Birthplace (normalized)	south dakota

1940

Day-County, South …

Head, age 49

Day-County, South Dakota · implied b. ~1891 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Block
Given Name	John H.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	49
Marital Status	Married
Birthplace	South Dakota
1935 Residence (City)	Kosciusko Township
1935 Residence (County)	Day
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	48
Income (1939)	0
Highest Grade	No 4
1935 Residence	Same place
Birth State	South Dakota
Birth Country	United States
Birthplace (normalized)	south dakota

Model Tree

Linked across censuses

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

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This person

Anchor record

John Black

Head · 1930 · age 39 · b. ~1891 · South Dakota

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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 — Day, South Dakota Open full size

Page Contents

50 people indexed on this census page (ia:1930:15thcensus2222unit:0098)

Line	Name	Age	Relation	Occupation	Birthplace
51	Emil Moen	26	—	Farm Laborer	South Dakota
52	Ingrid Moen	23	—	Worker	South Dakota
53	Hazel Moen	21	daughter	—	South Dakota
54	Gordon Moen	12	son	—	South Dakota
55	Robez Moen	27	hired man	Farm Laborer	South Dakota
56	Stavey Moen	27	daughter-in-law	—	South Dakota
57	Ralph Metty	41	head	Farmer	South Dakota
58	Martha Metty	37	wife	—	South Dakota
59	Levina Metty	16	daughter	—	South Dakota
60	Nila Metty	13	daughter	—	South Dakota
61	James Metty	10	son	—	South Dakota
62	Phyllis Metty	7	daughter	—	South Dakota
63	Harold Metty	5	son	—	South Dakota
64	Ole J Haagenson	33	head	Farmer	South Dakota
65	Marie E Haagenson	23	wife	—	South Dakota
66	Carroll Haagenson	1	son	—	South Dakota
67	Peter Finstad	73	head	Farmer	Norway
68	Inger Anna Finstad	73	wife	—	Norway
69	Claus	42	son	Farmer	South Dakota
70	Elmer	34	son	Farm Laborer	South Dakota
71	John Carlson	58	head	Farm Laborer	Sweden
72	Elsie Carlson	44	wife	—	Minnesota
73	Alice Carlson	17	daughter	—	Minnesota
74	Eveline Carlson	9	daughter	—	Minnesota
75	Daniel Sandvig	63	head	Farmer	Norway
76	Molly Sandvig	60	wife	—	Wisconsin
77	Andrew Sandvig	22	son	Farm Laborer	South Dakota
78	Nels Skundberg	76	head	Farmer	Norway
79	Cecelia Skundberg	75	wife	—	Norway
80	Soren Skundberg	44	son	Laborer	South Dakota
81	Clarence Skundberg	37	son	Farm Laborer	South Dakota
82	John Skundberg	35	son	Farm Laborer	South Dakota
83	Joseph Falkenroth	37	head	Farmer	South Dakota
84	Mary Falkenroth	33	wife	—	South Dakota
85	Stanley Falkenroth	8	son	—	South Dakota
86	Norman Falkenroth	5	son	—	South Dakota
87	Janet Falkenroth	2	daughter	—	South Dakota
88	Henry Falkenroth	0	son	—	South Dakota
89	John F Black THIS PERSON	39	head	Farmer	South Dakota
90	Marie Black	35	wife	—	South Dakota
91	Charles Black	15	son	—	South Dakota
92	Anna Black	13	daughter	—	South Dakota
93	Herman Black	12	son	—	South Dakota
94	Leonard Black	8	son	—	South Dakota
95	Cecelia Black	7	daughter	—	South Dakota
96	Emelia Black	6	daughter	—	South Dakota
97	Jackson Black	4	son	—	South Dakota
98	John A Black	2	son	—	South Dakota
99	George Black	0	daughter	—	South Dakota
100	Martin M Skarvik	66	head	Farmer	Norway

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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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