Margaret Mcgrath — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Suffolk-County, Massachusetts

Our Model Tree links this Margaret Mcgrath across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 2-person household.

Age 78 b. ~1862 Female Head Born: Massachusetts Widowed

1940 Census Record Details

Census Year	1940
Location	Suffolk-County, Massachusetts
Surname	McGrath
Given Name	Margaret
Relationship to Head	Head
Sex	F
Color / Race	White
Age	78
Marital Status	Widowed
Birthplace	Massachusetts
1935 Residence (County)	Suffolk
Additional Details
Industry	0
Highest Grade	No 8
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts
Township / Ward	Boston
Est. Birth Year	~1862

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.

2 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Margaret	Age	Birth yr
Margaret Mcgrath	Head	—	78	~1862
Nellie Mcgrath	Daughter	—	41	~1899

Census Appearances

1920

Suffolk, Massachusetts

Other, age 57

Suffolk, Massachusetts · implied b. ~1863 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McGrath
Given Name	Margaret
Relationship to Head	Servant
Sex	F
Color / Race	White
Age	57
Marital Status	Single
Birthplace	Massachusetts
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Maid
Industry	Private Family
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

1930

Suffolk, Massachusetts

Other, age 68

Suffolk, Massachusetts · implied b. ~1862 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McGrath
Given Name	Margaret A.
Relationship to Head	Head-H
Sex	F
Color / Race	White
Age	68
Marital Status	Widowed
Birthplace	Massachusetts
Age at First Marriage	27
Father's Birthplace	Irish Free State
Mother's Birthplace	Irish Free State
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	35
Radio Set	R
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

1940

Suffolk-County, Massachusetts

Head, age 78

Suffolk-County, Massachusetts · implied b. ~1862 — 2 household members

Surname	McGrath
Given Name	Margaret
Relationship to Head	Head
Sex	F
Color / Race	White
Age	78
Marital Status	Widowed
Birthplace	Massachusetts
1935 Residence (County)	Suffolk
Industry	0
Highest Grade	No 8
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

Model Tree

Linked across censuses

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

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This person

Anchor record

Margaret Mcgrath

Head · 1940 · age 78 · b. ~1862 · Massachusetts

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

Original Census Page

1940 US Federal Census — Suffolk-County, Massachusetts Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01679-00538)

Line	Name	Age	Relation	Occupation	Birthplace
41	Clarence Green	4	Son	—	Massachusetts
42	Emma Drewes	75	Mother-in-law	—	Massachusetts
43	Pauline Leahy	39	Sister-in-law	Geodetic Survey	Massachusetts
44	Margaret Mcgrath THIS PERSON	78	Head	—	Massachusetts
45	Nellie Mcgrath	41	Daughter	Federal Reserve Bank	Massachusetts
46	Martin Maguire	30	Head	Department Store	Massachusetts
47	Anna Maguire	28	Wife	—	Massachusetts
48	Joan B. Maguire	4	Daughter	—	Massachusetts
49	George Flynn	40	Head	Curtain Factory	Massachusetts
50	Barbara Flynn	45	Wife	—	Massachusetts
51	George Kelly	36	Head	Railroad	Massachusetts
52	Doris Kelly	36	Wife	0	Norway
53	Mary Kelly	16	Daughter	—	Massachusetts
54	Joan Kelly	9	Daughter	—	Massachusetts
55	Irene Kelly	7	Daughter	—	Massachusetts
56	George Kelly	3	Son	—	Massachusetts
57	James Kelly	2	Son	—	Massachusetts
58	James Cunningham	64	Lodger	—	Massachusetts
59	Lillian M. Matlack	66	Head	0	Canada-English
60	Emma Zwicker	71	Sister	0	Canada-English
61	Edwin Larson	45	Head	Contractor	Massachusetts
62	Clara Larson	41	Wife	Pw	Norway
63	Randolph Larson	18	Son	Pw	Norway
64	Edith Larson	17	Daughter	—	Norway
65	Alfred O. Anderson	50	Head	Pw	Norway
66	Herta E. Anderson	43	Wife	—	Norway
67	Eleanor Anderson	13	Daughter	—	Massachusetts
68	Adolf Liebeicher	64	Head	Pw	Germany
69	Caroline Liebeicher	55	Wife	—	Germany
70	William Peterson	31	Head	Express Company	Massachusetts
71	Helen E. Peterson	31	Wife	—	Massachusetts
72	Francis Peterson	2	Son	—	Massachusetts
73	William H. Peterson	0	Son	—	Massachusetts
74	Helwig Marcisuni	42	Head	Pw	Czechoslovakia
75	Gloria Marcisuni	16	Daughter	—	Massachusetts
76	Black Eade	23	Head	—	Massachusetts
77	Julia F. Lasalle	69	Head	0	Irish Free State
78	Albert B. Lasalle	38	Son	Clothing Store	Massachusetts
79	William Mcnulty	53	Head	Public Works Dept	Massachusetts
80	Elizabeth Powers	64	Head	—	Massachusetts

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1940 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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