Mary Hayes — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Essex-County, Massachusetts

Our Model Tree links this Mary Hayes across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 4-person household.

Age 39 b. ~1901 Female Spouse Born: Massachusetts Married

1940 Census Record Details

Census Year	1940
Location	Essex-County, Massachusetts
Surname	Hayes
Given Name	Mary A.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Massachusetts
1935 Residence (City)	Lawrence City
1935 Residence (County)	Essex
Additional Details
Highest Grade	Hs 4
1935 Residence	Same place
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts
Township / Ward	Lawrence City
Est. Birth Year	~1901

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Jacqueline Hayes	Daughter	—	4	~1936
Thomas Hayes	Head	—	30	~1910
Warren Hayes	Son	—	3	~1937
Mary Hayes	Spouse	—	39	~1901

Census Appearances

1920

Essex, Massachusetts

Other, age 19

Essex, Massachusetts · implied b. ~1901 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hayes
Given Name	Mary
Relationship to Head	Boarder
Sex	F
Color / Race	White
Age	19
Marital Status	Single
Birthplace	Massachusetts
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Winder
Industry	woolen mill
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Irish
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

1930

Essex, Massachusetts

Other, age 29

Essex, Massachusetts · implied b. ~1901 — 30 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hayes
Given Name	Mary
Sex	F
Color / Race	White
Age	29
Marital Status	Single
Birthplace	Massachusetts
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Laundress
Industry	Hospital
Class of Worker	W
Can Read/Write	Yes
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

1940

Essex-County, Massachusetts

Spouse, age 39

Essex-County, Massachusetts · implied b. ~1901 — 4 household members

Surname	Hayes
Given Name	Mary A.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Massachusetts
1935 Residence (City)	Lawrence City
1935 Residence (County)	Essex
Highest Grade	Hs 4
1935 Residence	Same place
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

Model Tree

Linked across censuses

Our Model Tree links Mary Hayes 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 Hayes

Spouse · 1940 · age 39 · b. ~1901 · 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

40 people indexed on this census page (nara:1940:m-t0627-01583-00924)

Line	Name	Age	Relation	Occupation	Birthplace
1	Thomas A. Q. Hayes	30	Head	Hoseman	Massachusetts
2	Mary A. Hayes THIS PERSON	39	Wife	—	Massachusetts
3	Jacqueline Ann Hayes	4	Daughter	—	Massachusetts
4	Warren V. Hayes	3	Son	—	Massachusetts
5	Charles Halipath	31	Head	Electric Welder	Massachusetts
6	Viola Halipath	29	Wife	—	Massachusetts
7	Claire Halipath	7	Daughter	—	Massachusetts
8	Frank Greenwood	38	Head	Auto Mechanic	England
9	Nora Greenwood	42	Wife	—	England
10	Arthur Maucourt	48	Head	Clerk	Massachusetts
11	Melvina Maucourt	42	Wife	Clerk	Massachusetts
12	Rita I. Maucourt	20	Daughter	Clerk	Massachusetts
13	Ferdinand Langlois	70	Head	Clerk	Canada French
14	Sophie Langlois	67	Wife	—	Canada French
15	Mary Langlois	44	Daughter	Manager	Canada French
16	Alphonsine Langlois	42	Daughter	Weaver	Connecticut
17	Bertha Meaney	60	Head	—	New Hampshire
18	Benjamin Bernstein	27	Head	Salesman	Massachusetts
19	Ida Bernstein	25	Wife	—	Minneapolis
20	Joan Bernstein	3	Daughter	—	Massachusetts
21	Barry Bernstein	2	Daughter	—	Massachusetts
22	Michael Netterston	46	Head	Clerk	Ireland
23	Gertrude Netterston	31	Wife	—	Massachusetts
24	Michael L. Netterston	17	Son	—	Massachusetts
25	Joseph Netterston	9	Son	—	Massachusetts
26	Mary Kelly	78	Mother-in-law	—	Massachusetts
27	John J. Crosby	40	Head	—	Massachusetts
28	Rae Mary Crosby	13	Daughter	—	California
29	Philibert Perault	31	Head	Section Hand	Massachusetts
30	Dorothy Perault	25	Wife	—	Massachusetts
31	Robert Perault	5	Son	—	Massachusetts
32	Joseph Filteau	39	Head	Barber	Canada French
33	Antoinette Filteau	40	Wife	—	Massachusetts
34	Marie C. Filteau	11	Daughter	—	Massachusetts
35	Adelia Gauterock	65	Mother-in-law	—	Canada French
36	Maurice Shapiro	41	Head	Proprietor	Russia
37	Florence Shapiro	40	Wife	—	Massachusetts
38	Gerald Shapiro	7	Son	—	Massachusetts
39	Stephen Shapiro	2	Son	—	Massachusetts
40	Edward Duke	32	Head	Clerk	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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