Mary Mackey — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Essex-County, Massachusetts

Our Model Tree links this Mary Mackey across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 5-person household.

Age 65 b. ~1875 Female Spouse Born: Finland Married

1940 Census Record Details

Census Year	1940
Location	Essex-County, Massachusetts
Surname	Mackey
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	65
Marital Status	Married
Birthplace	Finland
1935 Residence (City)	Beverly City
1935 Residence (County)	Essex
Naturalization Status	Alien
Additional Details
Industry	0
Highest Grade	No 6
1935 Residence	Same place
Birth Country	Finland
Birthplace (normalized)	finland
Township / Ward	Beverly 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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Mackey	Spouse	—	65	~1875
Solly Mackey	Head	—	64	~1876
Elma Mackey	Daughter	—	33	~1907
Hjalmar Mackey	Son	—	33	~1907
John Mackey	Son	—	23	~1917

Census Appearances

1920

Essex, Massachusetts

Spouse, age 47

Essex, Massachusetts · implied b. ~1873 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mackey
Given Name	Mary L.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Finland
Year of Immigration	1903
Naturalization Status	Alien
Father's Birthplace	Finland
Mother's Birthplace	Finland
Can Read	Yes
Can Write	No
Speaks English	Yes
Mother Tongue	Finnish
Birth Country	Finland
Birthplace (normalized)	finland

1930

Essex, Massachusetts

Other, age 57

Essex, Massachusetts · implied b. ~1873 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mackey
Given Name	Mary L.
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Finland
Naturalization Status	Alien
Year of Immigration	1903
Age at First Marriage	21
Father's Birthplace	Finland
Mother's Birthplace	Finland
Can Read/Write	Yes
Mother Tongue	Finnish
Birth Country	Finland
Birthplace (normalized)	finland

1940

Essex-County, Massachusetts

Spouse, age 65

Essex-County, Massachusetts · implied b. ~1875 — 5 household members

Surname	Mackey
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	65
Marital Status	Married
Birthplace	Finland
1935 Residence (City)	Beverly City
1935 Residence (County)	Essex
Naturalization Status	Alien
Industry	0
Highest Grade	No 6
1935 Residence	Same place
Birth Country	Finland
Birthplace (normalized)	finland

Model Tree

Linked across censuses

Our Model Tree links Mary Mackey 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 Mackey

Spouse · 1940 · age 65 · b. ~1875 · 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 — Essex-County, Massachusetts Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-01577-00854)

Line	Name	Age	Relation	Occupation	Birthplace
1	Carol Lombardi	6	Daughter	—	Massachusetts
2	Vernon Macneil	31	Boarder	Machinist	Massachusetts
3	Eleanor Eastwood	28	Head	No	Massachusetts
4	Jesse Eastwood	8	Daughter	—	Massachusetts
5	Norma Eastwood	5	Daughter	—	Massachusetts
6	Julia Bunningham	71	Head	—	Eire
7	Jane Bunningham	67	Sister-in-law	No	Eire
8	Jane F. Bunningham	40	Daughter	—	Massachusetts
9	Nick Hoikala	45	Head	Millwright	Finland
10	Tyyne Hoikala	40	Wife	Housework	Finland
11	William Hoikala	14	Son	New Worker	Massachusetts
12	John Hoikala	12	Son	—	Massachusetts
13	Walter J. Corbett	41	Head	Clerk	Massachusetts
14	Margaret Corbett	37	Wife	Clerk	Massachusetts
15	Ellen Page	75	Mother-in-law	—	Eire
16	Martha Nelson	58	Head	Housework	Germany
17	Oscar Nelson	29	Son	Machine Scraper	Massachusetts
18	Giustina Birarelli	50	Head	—	Italy
19	Albina Birarelli	26	Daughter	Recreation Project	Massachusetts
20	Freddy Birarelli	21	Son	Painting Project	Massachusetts
21	Peter Reginelli	55	Boarder	Beam House Laborer	Italy
22	Arthur Birarelli	26	Head	Asst. Cust.	Massachusetts
23	Edith Birarelli	26	Wife	Inspector	Massachusetts
24	Richard Birarelli	3	Son	—	Massachusetts
25	Patricia Birarelli	1	Daughter	—	Massachusetts
26	Solly Mackey	64	Head	Laborer	Finland
27	Mary Mackey THIS PERSON	65	Wife	—	Finland
28	Hjalmar Mackey	33	Son	Bookkeeper	Massachusetts
29	Elma Mackey	33	Daughter	Bookkeeper	Massachusetts
30	John Mackey	23	Son	Foundry Worker	Massachusetts
31	Elizabeth Box	39	Head	Elem. School Teacher	Massachusetts
32	Gustav Norbaka	65	Head	Laborer	Finland
33	Wilfred Norbaka	38	Son	Machinist	Finland
34	Robert Norbaka	18	Son	New Worker	Massachusetts
35	Helen Norbaka	65	Daughter	—	Finland
36	Gustav Kleemola	67	Head	Worker In Dye Shop	Finland
37	Anna Kleemola	57	Wife	—	Finland
38	Elma Kleemola	22	Daughter	Bookkeeper	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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