Mary Monahan — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Queens, New York

Our Model Tree links this Mary Monahan across the 1920 and 1930 US Censuses in Queens, New York (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 11-person household.

Age 55 b. ~1875 Female Head Born: Ireland Widowed

1930 Census Record Details

Census Year	1930
Location	Queens, New York
Surname	Monahan
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	55
Marital Status	Widowed
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1890
Age at First Marriage	25
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Additional Details
Can Read/Write	Yes
Mother Tongue	Irish
Home Owned/Rented	R
Home Value / Rent	45
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	New York City
Est. Birth Year	~1875

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 Mary	Age	Birth yr
William Monahan	Son	—	18	~1912
Joseph Monahan	Son	—	26	~1904
John Monahan	Son	—	22	~1908
James Monahan	Son	—	12	~1918
Mary Monahan	Daughter	—	28	~1902
Alice Monahan	Daughter	—	24	~1906
Margaret Monahan	Daughter	—	20	~1910
Robert Monahan	Son	—	16	~1914
Mary Monahan	Head	—	55	~1875
Catherine Monahan	Daughter	—	14	~1916
Thomas Monahan	Son	—	10	~1920

Census Appearances

1920

Philadelphia, Pennsylvania

Head, age 45

Philadelphia, Pennsylvania · implied b. ~1875 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Monahan
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	45
Marital Status	Widowed
Birthplace	Ireland
Year of Immigration	1889
Naturalization Status	Naturalized
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Inspectress
Industry	U.S. Arsenal
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Home Owned/Rented	O
Home Free/Mortgaged	F
Birth Country	Ireland
Year of Naturalization	Un
Birthplace (normalized)	ireland

1930

Queens, New …

Head, age 55

Queens, New York · implied b. ~1875 — 11 household members

Surname	Monahan
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	55
Marital Status	Widowed
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1890
Age at First Marriage	25
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read/Write	Yes
Mother Tongue	Irish
Home Owned/Rented	R
Home Value / Rent	45
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Monahan

Head · 1930 · age 55 · b. ~1875 · 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 — Queens, New York Open full size

Page Contents

50 people indexed on this census page (ia:1930:newyorkcensus00reel1609:0728)

Line	Name	Age	Relation	Occupation	Birthplace
51	Margaret Bunn	54	Head	—	New York
52	Margaret Bunn	26	Daughter	Clerk	New York
53	Helen Bunn	24	Daughter	Stenographer	New York
54	John Bunn	22	Son	Clerk	New York
55	William Bunn	20	Son	Clerk	New York
56	Head Henry	31	Head	Milkman	New York
57	Anna Henry	30	Wife	—	New York
58	Anna Henry	2	Daughter	—	New York
59	William Henry	0	Son	—	New York
60	Mary Monahan	24	Head	Saleswoman	New York
61	Joseph Monahan	35	Head	Salesman	New York
62	Rose Monahan	30	Wife	—	New York
63	Gloria Monahan	8	Daughter	—	New York
64	Joseph Monahan	6	Son	—	New York
65	Lucille Monahan	0	Daughter	—	New York
66	Joseph Monahan	23	Head	Clerk	New York
67	Alice Monahan	20	Wife	—	New York
68	Alice Monahan	2	Daughter	—	New York
69	Joseph Monahan	1	Son	—	New York
70	Mary Monahan	43	Head	—	New York
71	Mary Monahan	19	Daughter	Clerk	New York
72	Joseph Monahan	17	Son	Clerk	New York
73	Alice Monahan	15	Daughter	—	New York
74	John Monahan	13	Son	—	New York
75	Margaret Monahan	11	Daughter	—	New York
76	William Monahan	9	Son	—	New York
77	Robert Monahan	7	Son	—	New York
78	Catherine Monahan	5	Daughter	—	New York
79	James Monahan	3	Son	—	New York
80	Thomas Monahan	1	Son	—	New York
81	Mary Monahan THIS PERSON	55	Head	—	Ireland
82	Mary Monahan	28	Daughter	Clerk	New York
83	Joseph Monahan	26	Son	Clerk	New York
84	Alice Monahan	24	Daughter	Clerk	New York
85	John Monahan	22	Son	Clerk	New York
86	Margaret Monahan	20	Daughter	Clerk	New York
87	William Monahan	18	Son	Clerk	New York
88	Robert Monahan	16	Son	—	New York
89	Catherine Monahan	14	Daughter	—	New York
90	James Monahan	12	Son	—	New York
91	Thomas Monahan	10	Son	—	New York
92	Mary Monahan	45	Head	—	New York
93	Mary Monahan	19	Daughter	Clerk	New York
94	Joseph Monahan	17	Son	Clerk	New York
95	Alice Monahan	15	Daughter	—	New York
96	John Monahan	13	Son	—	New York
97	Margaret Monahan	11	Daughter	—	New York
98	William Monahan	9	Son	—	New York
99	Robert Monahan	7	Son	—	New York
100	Catherine Monahan	5	Daughter	—	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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