Mary Hennessy — 1900 US Census Record

Linked across censuses

1900 United States Federal Census · Kings, New York

Our Model Tree links this Mary Hennessy across the 1900 and 1910 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a spouse (b.~1853), then head of a 7-person household.

Age 47 b. ~1853 Female Spouse Born: Ireland Married

1900 Census Record Details

Census Year	1900
Location	Kings, New York
Surname	Hennessy
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Ireland
Birth Month	May
Birth Year	1853
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Additional Details
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	New York City Borough Of Brooklyn
Est. Birth Year	~1853

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 1900 census.

Name	Relation to head	Relative to Mary	Age	Birth yr
Ellen Hennessy	Daughter	—	19	~1881
Mary Hennessy	Spouse	—	47	~1853
John Hennessy	Head	—	53	~1847
Mary Hennessy	Daughter	—	21	~1879
Gertrude Hennessy	Daughter	—	13	~1887
John Hennessy	Son	—	11	~1889
Teresa Hennessy	Daughter	—	9	~1891

Census Appearances

1900

Kings, New …

Spouse, age 47

Kings, New York · implied b. ~1853 — 7 household members

Surname	Hennessy
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Ireland
Birth Month	May
Birth Year	1853
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth Country	Ireland
Birthplace (normalized)	ireland

1910

Kings, New …

Spouse, age 60

Kings, New York · implied b. ~1850 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hennesey
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Ireland
Years Married	34
Children Born	6
Children Living	4
Year of Immigration	1855
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links Mary Hennessy across 2 US Census years (1900 and 1910) in Kings, New York, using XGBoost record linkage.

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This person

Anchor record

Mary Hennessy

Spouse · 1900 · age 47 · b. ~1853 · New York

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

Original Census Page

1900 US Federal Census — Kings, New York Open full size

Page Contents

50 people indexed on this census page (ia:1900:12thcensusofpopu1047unit:0740)

Line	Name	Age	Relation	Occupation	Birthplace
51	Charlotte Johnson	50	Wife	—	Sweden
52	Roland O Johnson	14	Son	At School	New York
53	Claus R Loren	38	Boarder	Sea Captain	Sweden
54	Louis A Steen	48	Head	Translator	Norway
55	Emma C Steen	40	Wife	—	Sweden
56	Ragnhild Steen	10	Daughter	At School	New York
57	Ruth Steen	5	Daughter	—	New Jersey
58	David Steen	2	Son	—	New York
59	William Mccourt	26	Head	Baker	Scotland
60	Josephine Mccourt	25	Wife	—	Massachusetts
61	Josephine Mccourt	3	Daughter	—	New York
62	William Lombard	52	Head	—	Ireland
63	Ellen Lombard	56	Wife	—	New York
64	William G Lombard	25	Son	—	New York
65	Edmund Lombard	21	Son	Commercial Trav	New York
66	Olaf Anderson	27	Head	Painter	Norway
67	Agnes Anderson	26	Wife	—	New York
68	Peter L Anderson	20	Brother	Painter	Norway
69	Richard Lienken	32	Head	Bartender	Germany
70	Meta Lienken	25	Wife	—	New York
71	Annie M Lienken	1	Daughter	—	New York
72	August Thorne	39	Head	Police Officer	New York
73	Charles Sampson	37	Head	Book Keeper	Ireland
74	Margaret Sampson	37	Wife	—	Ireland
75	George G Schaff	36	Head	Produce	New York
76	Mary Schaff	29	Wife	—	New York
77	Violet Schaff	10	Daughter	At School	New Jersey
78	Charles Schaff	5	Son	—	New Jersey
79	James Schaff	2	Son	—	New York
80	Patrick Sherry	60	Father in law	Carpenter	Ireland
81	William G Mundy	27	Head	Book Keeper	New York
82	Lydia L Mundy	27	Wife	—	New York
83	William S Mundy	2	Son	—	New York
84	Elizabeth Campbell	67	Mother in law	—	England
85	Lawrence Rogan	48	Head	Police Officer	Ireland
86	Bridget Rogan	40	Wife	—	Ireland
87	Edward J Rogan	18	Son	Hardware	New York
88	Thomas J Rogan	16	Son	Machinist	New York
89	Mary Rogan	12	Daughter	At School	New York
90	John Rogan	10	Son	At School	New York
91	Frank R Rogan	5	Son	At School	New York
92	Lawrence Rogan	13	Son	—	New York
93	Gertrude Rogan	8	Daughter	—	New York
94	John Hennessy	52	Head	Clerk	Massachusetts
95	Mary Hennessy THIS PERSON	47	Wife	—	Ireland
96	Mary J Hennessy	20	Daughter	At School	New York
97	Ellen E Hennessy	19	Daughter	Typewriter	New York
98	Gertrude M Hennessy	12	Daughter	At School	New York
99	John J Hennessy	11	Son	At School	New York
100	Teresa Hennessy	9	Daughter	At School	New York

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1900 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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