Mary Pierce — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Middlesex-County, Massachusetts

Our Model Tree links this Mary Pierce across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 3-person household.

Age 61 b. ~1879 Female Spouse Born: Vermont Married

1940 Census Record Details

Census Year	1940
Location	Middlesex-County, Massachusetts
Surname	Pierce
Given Name	Mary B.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	61
Marital Status	Married
Birthplace	Vermont
1935 Residence (City)	Tyngsborough
1935 Residence (County)	Middlesex
Additional Details
Hours Worked	0
Highest Grade	Hs 3
1935 Residence	Same house
Birth State	Vermont
Birth Country	United States
Birthplace (normalized)	vermont
Township / Ward	Tyngsborough
Est. Birth Year	~1879

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Nellie Pierce	Daughter	—	24	~1916
Wesley Pierce	Head	—	58	~1882
Mary Pierce	Spouse	—	61	~1879

Census Appearances

1920

Middlesex, Massachusetts

Spouse, age 39

Middlesex, Massachusetts · implied b. ~1881 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Pierce
Given Name	Mary B.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Vermont
Father's Birthplace	Vermont
Mother's Birthplace	Vermont
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Vermont
Birth Country	United States
Birthplace (normalized)	vermont

1930

Middlesex, Massachusetts

Other, age 50

Middlesex, Massachusetts · implied b. ~1880 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Pierce
Given Name	Mary B.
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	50
Marital Status	Married
Birthplace	Vermont
Age at First Marriage	26
Father's Birthplace	Vermont
Mother's Birthplace	Vermont
Can Read/Write	Yes
Birth State	Vermont
Birth Country	United States
Birthplace (normalized)	vermont

1940

Middlesex-County, Massachusetts

Spouse, age 61

Middlesex-County, Massachusetts · implied b. ~1879 — 3 household members

Surname	Pierce
Given Name	Mary B.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	61
Marital Status	Married
Birthplace	Vermont
1935 Residence (City)	Tyngsborough
1935 Residence (County)	Middlesex
Hours Worked	0
Highest Grade	Hs 3
1935 Residence	Same house
Birth State	Vermont
Birth Country	United States
Birthplace (normalized)	vermont

Model Tree

Linked across censuses

Our Model Tree links Mary Pierce 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 Pierce

Spouse · 1940 · age 61 · b. ~1879 · 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 — Middlesex-County, Massachusetts Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-01618-00263)

Line	Name	Age	Relation	Occupation	Birthplace
41	Warren W. Allgrove	21	Son	—	Massachusetts
42	Carl G. Allgrove	19	Son	—	Massachusetts
43	Murray Parrish	70	Head	Farmer	Nova Scotia
44	Clara B. Parrish	68	Wife	—	Nova Scotia
45	Harold Carter	8	Boarder	—	Massachusetts
46	Henderson Harrison	52	Hired man	Farm Hand	Massachusetts
47	George Laudelle	44	Head	Tractor Driver	Massachusetts
48	Effie L. Laudelle	45	Wife	—	New Hampshire
49	Ann Hall	62	Lodger	Housekeeper	Connecticut
50	Bertrand A. Currier	62	Head	Purchasing Agent	Maine
51	E. Maude Currier	51	Wife	—	Massachusetts
52	Charles H. Currier	26	Son	Partner	Massachusetts
53	Phyllis M. Currier	24	Daughter	Cashier	Massachusetts
54	Ralph B. Currier	30	Head	Partner	Massachusetts
55	Katherine Currier	28	Wife	Teacher	Massachusetts
56	Wesley W. Pierce	58	Head	Proprietor	New York
57	Mary B. Pierce THIS PERSON	61	Wife	—	Vermont
58	Nellie M. Pierce	24	Daughter	—	Massachusetts
59	Arthur G. Hankinson	42	Head	—	Massachusetts
60	Clara M. Hankinson	46	Wife	Weaver	England
61	Doris M. Hankinson	12	Daughter	—	Massachusetts
62	Donald A. Hankinson	9	Son	—	Massachusetts
63	George A. Jr. Lavallee	42	Head	Truck & Bus	Massachusetts
64	Breina Lavallee	42	Wife	Private Driving	Massachusetts
65	Francis Gordon	22	Head	Machinist	Massachusetts
66	Bertha Gordon	19	Wife	—	Massachusetts
67	Cynthia Gordon	0	Daughter	—	Massachusetts
68	Angelo Menchini	57	Head	Chef	Italy
69	Margaret Menchini	47	Wife	—	Massachusetts
70	James Smith	38	Head	Trucking	Massachusetts
71	Mary E. Smith	49	Wife	—	Ireland
72	Arthur J. Smith	14	Son	—	Massachusetts
73	Clarence J. Connell	59	Head	Contractor	New Hampshire
74	Edith K. Connell	60	Wife	—	Massachusetts
75	Barbara A. Connell	23	Daughter	Operator	Massachusetts
76	Burton Saunders	55	Head	Salesman	Canada
77	Allen Hendrickson	26	Head	Attendant	New York
78	Violet Hendrickson	23	Wife	—	New York
79	Allen Jr. Hendrickson	3	Son	—	New York

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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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