John Grace — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Kings, New York

Our Model Tree links this John Grace across the 1930 and 1940 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a son (b.~1898), then head of a 5-person household.

Age 32 b. ~1898 Male Son Born: New York Single

1930 Census Record Details

Census Year	1930
Location	Kings, New York
Surname	Grace
Given Name	John
Relationship to Head	Son
Sex	M
Color / Race	White
Age	32
Marital Status	Single
Birthplace	New York
Father's Birthplace	New York
Mother's Birthplace	New York
Additional Details
Occupation	Salesman
Industry	White Star Line
Class of Worker	W
Can Read/Write	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Occupation	Salesman
Township / Ward	Brooklyn Borough
Est. Birth Year	~1898

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 John	Age	Birth yr
Kathleen Grace	Daughter	—	24	~1906
John Grace	Son	—	32	~1898
Anna Grace	Daughter	—	28	~1902
Catherine Grace	Spouse	—	55	~1875
Frank Grace	Head	—	59	~1871

Census Appearances

1930

Kings, New …

Son, age 32

Kings, New York · implied b. ~1898 — 5 household members

Surname	Grace
Given Name	John
Relationship to Head	Son
Sex	M
Color / Race	White
Age	32
Marital Status	Single
Birthplace	New York
Father's Birthplace	New York
Mother's Birthplace	New York
Occupation	Salesman
Industry	White Star Line
Class of Worker	W
Can Read/Write	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

Kings-County, New …

Head, age 42

Kings-County, New York · implied b. ~1898 — 10 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Greco
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	42
Marital Status	Married
Birthplace	New York
1935 Residence (City)	New York City
1935 Residence (County)	Kings
Occupation	Junk
Industry	dealer
Class of Worker	OA
Hours Worked	40
Income (1939)	2000
Highest Grade	No 0
1935 Residence	N.Y.
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

Model Tree

Linked across censuses

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

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This person

Anchor record

John Grace

Son · 1930 · age 32 · b. ~1898 · New York

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Sibling

Anna Grace

Sibling · 1930 · age 28

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Kathleen Grace

Sibling · 1930 · age 24

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 — Kings, New York Open full size

Page Contents

49 people indexed on this census page (ia:1930:newyorkcensus00reel1515:0982)

Line	Name	Age	Relation	Occupation	Birthplace
51	Florence Toronzy	2	Daughter	—	New York
52	Phillip Catone	47	Head	Proprietor	Italy
53	Sanda Catone	20	Son	Tailor	New York
54	Nicholas Catone	19	Son	Tailor	New York
55	Daniel Catone	17	Son	—	New York
56	Norah Haggerty	72	Head	Housewife	Irish Free State
57	Josephine B. Haggerty	28	Daughter	Typist	Irish Free State
58	John Markham	54	Head	Blacksmith	Irish Free State
59	Mary Markham	55	Wife	—	Irish Free State
60	John Markham	20	Son	Clerk	New York
61	Edward Dwyer	52	Head	Clerk	Irish Free State
62	Alice Dwyer	50	Wife	—	Irish Free State
63	Edward Jr. Dwyer	27	Son	Clerk, Pat.	New York
64	Daniel Dwyer	19	Son	Clerk	New York
65	John Dwyer	17	Son	Messenger	New York
66	Thomas Dwyer	14	Son	—	New York
67	James Donnelly	45	Head	P.O. Clerk	New York
68	Margaret Donnelly	36	Wife	—	England
69	Frank Dearpichart	47	Head	Matron	New York
70	Anna Dearpichart	47	Wife	Typist	New York
71	James Dearpichart	21	Son	Clerk	New York
72	Theresa Dearpichart	18	Son	—	New York
73	Marie Dearpichart	16	Daughter	—	New York
74	Kayla Dearpichart	14	Daughter	—	New York
75	Catherine Woods	31	Head	Housewife	New York
76	Bernard Woods	11	Son	—	New York
77	Margaret Woods	9	Daughter	—	New York
78	Antonia Picher	51	Aunt	Examiner	New York
79	John Hacker	37	Boarder	Painter	New York
80	Frank Grace	59	Head	Clerk	New York
81	Catherine Grace	55	Wife	—	New York
82	John Grace THIS PERSON	32	Son	Salesman	New York
83	Anna Grace	28	Daughter	Stenographer	New York
84	Kathleen Grace	24	Daughter	Stock Clerk	New York
85	Henry Feeney	28	Head	Metalworker	No. Ireland
86	Mary Feeney	33	Wife	—	No. Ireland
87	James Feeney	6	Son	—	No. Ireland
88	Marie Feeney	4	Daughter	—	No. Ireland
89	Anna T. Feeney	2	Daughter	—	New York
90	John Everson	53	Head	Blacksmith	Denmark
91	Caroline Everson	45	Wife	—	Denmark
92	Julia Everson	26	Daughter	Stenographer	New York
93	Arthur Everson	23	Son	Clerk	New York
94	Dolly Detloff	26	Boarder	Carpenter	Denmark
95	George Gourlay	27	Head	Gardener	New York
96	Marion Gourlay	28	Wife	—	New York
97	Lillian Gourlay	9	Daughter	—	New York
98	George H. Gourlay	7	Son	—	New York
99	William Gourlay	5	Son	—	New York

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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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