Mary Leonard — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Kings, New York

Our Model Tree links this Mary Leonard across the 1920, 1930 and 1940 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 3-person household.

Age 42 b. ~1888 Female Spouse Born: Ireland Married

1930 Census Record Details

Census Year	1930
Location	Kings, New York
Surname	Leonard
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1902
Age at First Marriage	22
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Additional Details
Can Read/Write	Yes
Mother Tongue	Irish
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	Brooklyn Borough
Est. Birth Year	~1888

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Leonard	Daughter	—	14	~1916
Edward Leonard	Head	—	50	~1880
Mary Leonard	Spouse	—	42	~1888

Census Appearances

1920

Kings, New …

Spouse, age 28

Kings, New York · implied b. ~1892 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Leonard
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	28
Marital Status	Married
Birthplace	Ireland
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Irish
Birth Country	Ireland
Birthplace (normalized)	ireland

1930

Kings, New …

Spouse, age 42

Kings, New York · implied b. ~1888 — 3 household members

Surname	Leonard
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1902
Age at First Marriage	22
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read/Write	Yes
Mother Tongue	Irish
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

Bronx-County, New …

Head, age 53

Bronx-County, New York · implied b. ~1887 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Leonard
Given Name	Margaret
Relationship to Head	Head
Sex	F
Color / Race	White
Age	53
Marital Status	Single
Birthplace	Ireland
1935 Residence (City)	Bronx
Naturalization Status	Alien
Occupation	Clerk
Industry	Drug Firm
Class of Worker	PW
Income (1939)	100
Highest Grade	H-4
1935 Residence	New York
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links Mary Leonard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Mary Leonard

Spouse · 1930 · age 42 · b. ~1888 · New York

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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 — Kings, New York Open full size

Page Contents

45 people indexed on this census page (ia:1930:newyorkcensus00reel1537:0592)

Line	Name	Age	Relation	Occupation	Birthplace
56	Charles Mullins	58	Head	Clerk	New York
57	Mary Mullins	58	Wife	—	New York
58	Charles Mullins	33	Son	Teamster	New York
59	William Mullins	25	Son	Truckman	New York
60	Robert Mullins	24	Son	Electrician	New York
61	John Mullins	22	Son	Fireman	New York
62	James Mullins	20	Son	—	New York
63	Frank Mullins	19	Son	Bookkeeper	New York
64	Joseph Mullins	11	Son	—	New York
65	Rodger Mullins	26	Son	Operator	New York
66	Mary Mullins	21	Daughter-in-law	—	New York
67	Charles Mullins	1	Grandson	—	New York
68	Mary Mullins	0	Granddaughter	—	New York
69	Mary Mullins	42	Daughter	Bookkeeper	New York
70	Mary Mullins	11	Granddaughter	—	New York
71	John Mullins	19	Grandson	—	New York
72	Joseph Mullins	17	Grandson	—	New York
73	Catherine Mullins	15	Granddaughter	—	New York
74	Edward Dealis	39	Head	Machinist	Lithuania
75	Mary Dealis	33	Wife	—	Lithuania
76	Dolphin Dealis	12	Daughter	—	New York
77	Edward Dealis	10	Son	—	New York
78	John Dealis	9	Son	—	New York
79	Mary Mccumber	52	Head	—	Virginia
80	Don Mccumber	23	Son	Electrician	West Virginia
81	Robert Mccumber	21	Son	Clerk	New York
82	Florence Mccumber	18	Daughter	—	New York
83	Mildred Mccumber	16	Daughter	—	New York
84	Joseph Mccumber	14	Son	—	New York
85	Edward Mccumber	12	Son	—	New York
86	Edward Leonard	35	Head	—	New York
87	Mary Leonard	32	Wife	—	New York
88	Edward Leonard	6	Son	—	New York
89	William Leonard	3	Son	—	New York
90	Mary Leonard	50	Head	Clerk	New York
91	Mary Leonard	22	Daughter	—	New York
92	Edward Leonard	50	Head	Owner	Ireland
93	Mary Leonard THIS PERSON	42	Wife	—	Ireland
94	Mary Leonard	14	Daughter	—	New York
95	Edward Leonard	37	Head	—	England
96	Mary Leonard	35	Wife	—	New York
97	Edward Leonard	7	Son	—	New York
98	William Leonard	5	Son	—	New York
99	John Leonard	70	Head	—	Ireland
100	Mary Leonard	68	Wife	—	Ireland

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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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