Mary Downey — 1940 US Census Record

Linked across censuses

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

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

Age 20 b. ~1920 Female Daughter Born: New York Single

1940 Census Record Details

Census Year	1940
Location	Erie-County, New York
Surname	Downey
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	20
Marital Status	Single
Birthplace	New York
1935 Residence (City)	Buffalo city
1935 Residence (County)	Erie
Additional Details
Occupation	Bookkeeper
Industry	Loan Office
Class of Worker	PW
Hours Worked	40
Income (1939)	1200
Highest Grade	H-4
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Occupation	Bookkeeper
Township / Ward	Buffalo City
Est. Birth Year	~1920

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
James Downey	Son	—	18	~1922
Ann Downey	Daughter	—	16	~1924
Hannah Downey	Spouse	—	52	~1888
Timothy Downey	Head	—	50	~1890
Mary Downey	Daughter	—	20	~1920

Census Appearances

1930

Erie, New …

Daughter, age 11

Erie, New York · implied b. ~1919 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Downey
Given Name	Mary M
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	11
Marital Status	Single
Birthplace	New York
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read/Write	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

Erie-County, New …

Daughter, age 20

Erie-County, New York · implied b. ~1920 — 5 household members

Surname	Downey
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	20
Marital Status	Single
Birthplace	New York
1935 Residence (City)	Buffalo city
1935 Residence (County)	Erie
Occupation	Bookkeeper
Industry	Loan Office
Class of Worker	PW
Hours Worked	40
Income (1939)	1200
Highest Grade	H-4
1935 Residence	Same place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

Model Tree

Linked across censuses

Our Model Tree links Mary Downey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Mary Downey

Daughter · 1940 · age 20 · b. ~1920 · New York

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Sibling

James Downey

Sibling · 1940 · age 18

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Ann Downey

Sibling · 1940 · age 16

Source co-child of head (derived)

● Co-child · derived · ~0.88

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

Original Census Page

1940 US Federal Census — Erie-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02823-00794)

Line	Name	Age	Relation	Occupation	Birthplace
1	John W. Diller	51	Head	Refiner	New York
2	Luella M. Diller	40	Wife	—	New York
3	Burton F. Diller	18	Son	—	New York
4	Bernice L. Diller	12	Daughter	—	New York
5	George E. Wheeler	24	Head	Loader	New York
6	Catherine M. Wheeler	23	Wife	Typist	Pennsylvania
7	James W. Harris	62	Head	Baggage Agt	New York
8	Grace C. Harris	54	Wife	—	Canada-Eng
9	Howard Harris	28	Son	Platform Man	New York
10	William J. Feeney	56	Head	Bookkeeper	Canada-Eng
11	Julia Doyle	29	Maid	Housekeeper	New York
12	Julia E. Whedon	56	Head	Office Clerk	Pennsylvania
13	Abbott Whedon	26	Son	Office Clerk	New York
14	William Britten	54	Lodger	Labourer	Canada-Eng
15	John A. Andrews	38	Head	Painter	New York
16	Mary S. Andrews	34	Wife	—	New York
17	Maryann Tierney	12	Stepdaughter	—	New York
18	Sharon L. Andrews	5	Daughter	—	New York
19	Timothy Downey	50	Head	Scooper	Eire
20	Hannah Downey	52	Wife	—	Eire
21	Mary Downey THIS PERSON	20	Daughter	Bookkeeper	New York
22	James Downey	18	Son	—	New York
23	Ann Downey	16	Daughter	—	New York
24	George Weatherald	48	Head	Switchman	Pennsylvania
25	Caroline Weatherald	48	Wife	—	New York
26	Anna Q. Scofield	49	Head	—	New York
27	Raymond J. Scofield	22	Son	Laborer	New York
28	Robert E. Scofield	20	Son	Apprentice	New York
29	Harold J. Scofield	18	Son	New Worker	New York
30	John J. Christ	24	Head	Switchman	New York
31	Lucille Christ	20	Wife	—	New York
32	George S. Hurst	42	Head	Oil Refiner	New York
33	Mildred S. Hurst	36	Wife	Secretary	New York
34	Mary K. Hurst	67	Mother	—	New York
35	Michael Mcgarvey	51	Head	Restaurant	No. Ireland
36	Kathleen Mcgarvey	43	Wife	—	Eire
37	Emmet Mcgarvey	13	Son	—	New York
38	Thomas Mcgarvey	10	Son	—	New York
39	Thomas Hurst	55	Head	Roller	New York
40	Beulah B. Hurst	53	Wife	—	Pennsylvania

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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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