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John Mccoy — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · King, Washington

Our Model Tree links this John Mccoy across the 1920 and 1930 US Censuses in King, Washington (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 8-person household.

Age 17 b. ~1913 Male Son Born: Washington Single

1930 Census Record Details

Census Year	1930
Location	King, Washington
Surname	McCoy
Given Name	John
Relationship to Head	Son
Sex	M
Color / Race	White
Age	17
Marital Status	Single
Birthplace	Washington
Father's Birthplace	California
Mother's Birthplace	Washington
Additional Details
Occupation	Logger
Industry	Firewood
Class of Worker	W
Can Read/Write	Yes
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington
Occupation	Logger
Township / Ward	Cedar Mountain Precinct
Est. Birth Year	~1913

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Edna Mccoy	Daughter	—	19	~1911
Josephine Mccoy	Daughter	—	13	~1917
Lilla Mccoy	Daughter	—	9	~1921
Joseph Mccoy	Head	—	52	~1878
Pat Mccoy	Son	—	10	~1920
John Mccoy	Son	—	17	~1913
Patrick Mccoy	Son	—	3	~1927
Nora Mccoy	Spouse	—	41	~1889

Census Appearances

1920

King, Washington

Son, age 6

King, Washington · implied b. ~1914 — 11 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McCoy
Given Name	John J
Relationship to Head	Son
Sex	M
Color / Race	White
Age	6
Marital Status	Single
Birthplace	Washington
Father's Birthplace	California
Mother's Birthplace	Washington
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington

1930

King, Washington

Son, age 17

King, Washington · implied b. ~1913 — 8 household members

Surname	McCoy
Given Name	John
Relationship to Head	Son
Sex	M
Color / Race	White
Age	17
Marital Status	Single
Birthplace	Washington
Father's Birthplace	California
Mother's Birthplace	Washington
Occupation	Logger
Industry	Firewood
Class of Worker	W
Can Read/Write	Yes
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington

Model Tree

Linked across censuses

Our Model Tree links John Mccoy across 2 US Census years (1920 and 1930) in King, Washington, using XGBoost record linkage.

Show:

This person

Anchor record

John Mccoy

Son · 1930 · age 17 · b. ~1913 · Washington

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Sibling

Pat Mccoy

Sibling · 1930 · age 10

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Josephine Mccoy

Sibling · 1930 · age 13

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Edna Mccoy

Sibling · 1930 · age 19

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Patrick Mccoy

Sibling · 1930 · age 3

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Lilla Mccoy

Sibling · 1930 · age 9

Source co-child of head (derived)

● Co-child · derived · ~0.88

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

Original Census Page

1930 US Federal Census — King, Washington Open full size

Page Contents

50 people indexed on this census page (ia:1930:15thcensus2489unitrs:0987)

Line	Name	Age	Relation	Occupation	Birthplace
51	Herschel Maxwell	30	Head	Farmer	Washington
52	Madge Maxwell	27	Wife	—	Illinois
53	Lois Maxwell	5	Daughter	—	Washington
54	Sophie Seppola	53	Head	Farmer	Finland
55	John Anderson	57	Boarder	Laborer	Finland
56	William Wilson	47	Head	Miner	Finland
57	Helda Wilson	39	Wife	—	Finland
58	Violet Wilson	16	Daughter	—	Washington
59	Emil Stoor	50	Head	Miner	Finland
60	Mary Stoor	47	Wife	—	Finland
61	Ray Hendrickson	33	Nephew	—	Washington
62	Emil Hendrickson	50	Head	Farmer	Finland
63	Mary Hendrickson	49	Wife	—	Finland
64	Chas Heisala	52	Head	Farmer	Finland
65	Katherine Heisala	45	Wife	—	Finland
66	John Heisala	18	Son	—	Oregon
67	Francis Heisala	8	Son	—	Washington
68	Ludvig Niemela	50	Head	Farmer	Finland
69	Anna Niemela	46	Wife	—	Michigan
70	Paul Niemela	24	Son	Laborer	Washington
71	Lawrence Niemela	23	Son	Clerk	Oregon
72	Raino R. Swenson	12	Nephew	—	Oregon
73	Arvid Norberg	45	Head	Farmer	Sweden
74	Chas D. Youngs	68	Head	Logger	Michigan
75	Marian Youngs	58	Wife	—	Canada
76	John H. Helffen	61	Head	Farmer	Minnesota
77	Theresa M. Helffen	60	Wife	—	New York
78	Alva Mcdonald	30	Head	Laborer	Kansas
79	Maud Mcdonald	29	Wife	—	North Carolina
80	Davy L. Mcdonald	5	Son	—	Washington
81	Henry Mcdonald	65	Head	Farmer	Scotland
82	Anna J. Mcdonald	88	Mother	—	Canada
83	Joseph F. Mccoy	52	Head	Laborer	California
84	Nora Mccoy	41	Wife	—	Washington
85	Edna Mccoy	19	Daughter	—	Washington
86	John Mccoy THIS PERSON	17	Son	Logger	Washington
87	Josephine Mccoy	13	Daughter	—	Washington
88	Pat Mccoy	10	Son	—	Washington
89	Lilla Mccoy	9	Daughter	—	Washington
90	Patrick E. Mccoy	3	Son	—	Washington
91	Mary Worley	22	Head	—	Washington
92	Geraldine Worley	1	Daughter	—	Washington
93	James N. Maxwell	53	Head	Farmer	Washington
94	Lizzie Maxwell	47	Wife	—	Kansas
95	Robt Faull	36	Head	Laborer	Wisconsin
96	Verna Faull	26	Wife	—	North Dakota
97	Robt Jr. Faull	1	Son	—	Washington
98	Lander Faull	31	Head	Laborer	Wisconsin
99	Bertha Faull	24	Wife	—	Wisconsin
100	Dorothy J. Faull	1	Daughter	—	Montana

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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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