Mary Johnston — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Westchester-County, New York

Our Model Tree links this Mary Johnston across the 1920, 1930 and 1940 US Censuses in Westchester-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 5-person household.

Age 55 b. ~1885 Female Spouse Born: Scotland Married

1940 Census Record Details

Census Year	1940
Location	Westchester-County, New York
Surname	Johnston
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Town of Poundridge
1935 Residence (County)	Westchester
Naturalization Status	Naturalized
Additional Details
Class of Worker	0
Hours Worked	0
Highest Grade	6
1935 Residence	Same place
Birth Country	Scotland
Birthplace (normalized)	scotland
Township / Ward	Town Of Poundridge
Est. Birth Year	~1885

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
Barbara Johnston	Daughter	—	24	~1916
John Johnston	Head	—	55	~1885
Sandra Johnston	Other	—		~1940
George Johnston	Son	—	20	~1920
Mary Johnston	Spouse	—	55	~1885

Census Appearances

1920

Bronx, New …

Spouse, age 36

Bronx, New York · implied b. ~1884 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnston
Given Name	Marion
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Scotland
Year of Immigration	1890
Naturalization Status	Naturalized
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Scotch
Birth Country	Scotland
Year of Naturalization	1918
Birthplace (normalized)	scotland

1930

Westchester, New …

Spouse, age 46

Westchester, New York · implied b. ~1884 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnston
Given Name	Mary N.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	46
Marital Status	Married
Birthplace	Scotland
Age at First Marriage	21
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Occupation	Yes
Can Read/Write	Yes
Mother Tongue	English
Birth Country	Scotland
Birthplace (normalized)	scotland

1940

Westchester-County, New …

Spouse, age 55

Westchester-County, New York · implied b. ~1885 — 5 household members

Surname	Johnston
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Town of Poundridge
1935 Residence (County)	Westchester
Naturalization Status	Naturalized
Class of Worker	0
Hours Worked	0
Highest Grade	6
1935 Residence	Same place
Birth Country	Scotland
Birthplace (normalized)	scotland

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Johnston

Spouse · 1940 · age 55 · b. ~1885 · New York

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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 — Westchester-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02812-00364)

Line	Name	Age	Relation	Occupation	Birthplace
1	Edith G. Miller	40	Wife	—	Connecticut
2	Robert Miller	16	Son	—	New York
3	Elaine Miller	13	Daughter	—	New York
4	Edith Peter Miller	12	Daughter	—	New York
5	Dora Jackson	25	Servant	Cook + Maid	Virgin Islands
6	John Johnston	55	Head	Carpenter	Scotland
7	Mary Johnston THIS PERSON	55	Wife	—	Scotland
8	Barbara D. Johnston	24	Daughter	—	New Jersey
9	George Johnston	20	Son	Gardener	New York
10	Sandra Johnston	0	Grand-daughter	—	Connecticut
11	Leonard R. Clare	28	Head	Caretaker	Jamaica, B.W.I.
12	Ena Clare	28	Wife	Housekeeper	Jamaica, B.W.I.
13	Herbert L. Stone	68	Head	Editor	Louisiana
14	Redelia Stone	68	Wife	—	Pennsylvania
15	David S. Jr. Hanchett	50	Head	Economics Teacher	Ohio
16	Clara W. Hanchett	48	Wife	—	Canada-English
17	Bruce Hanchett	19	Son	—	Ohio
18	Stephen Sejeck	27	Head	Carpenter	New York
19	Lillian Sejeck	27	Wife	—	Connecticut
20	Audrey Sejeck	1	Daughter	—	Connecticut
21	Frank Olin	41	Head Caretaker	Caretaker	Michigan
22	Clyde Valien	43	Head	Carpenter	New York
23	Samuel Valien	70	Father	—	New York
24	William C. Valien	69	Uncle	—	New York
25	Leroy Peterson	49	Head	Company Executive	Pennsylvania
26	Lily S. Peterson	49	Wife	—	New York
27	Barbara A. Peterson	25	Daughter	Saleswoman	New York
28	Joan Peterson	14	Daughter	—	New York
29	Nancy Peterson	9	Daughter	—	New York
30	R. Mcallister Lloyd	42	Head	Bank Executive	New York
31	Isabel Lloyd	40	Wife	—	Massachusetts
32	Mary Lloyd	17	Daughter	—	Maine
33	Robert M. Jr. Lloyd	13	Son	—	Connecticut
34	Eleanor Lloyd	11	Daughter	—	Connecticut
35	Helen Valien	36	Head	Education Teacher	New Jersey
36	Harriet Sier	25	Lodger	Education Teacher	New Jersey
37	Edward C. Terry	63	Head	Stationary Engineer	New York
38	Helen S. Terry	70	Wife	—	New York
39	Carl Wagner	30	Lodger	Landscape Gardener	Germany
40	Arline A. Leonard	69	Head	—	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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