Mary Farrell — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Farrell across the 1920, 1930 and 1940 US Censuses in Westchester-County, New York (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 4-person household.

Age 65 b. ~1875 Female Head Born: Ireland Widowed

1940 Census Record Details

Census Year	1940
Location	Westchester-County, New York
Surname	Farrell
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	65
Marital Status	Widowed
Birthplace	Ireland
1935 Residence (City)	Elmsford (village)
1935 Residence (County)	Westchester
Naturalization Status	Naturalized
Additional Details
Class of Worker	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	Elmsford Village
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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Farrell	Head	—	65	~1875
Mathew Farrell	Son	—	33	~1907
Joseph Farrell	Son	—	24	~1916
Francis Farrell	Son	—	22	~1918

Census Appearances

1920

Westchester, New …

Spouse, age 47

Westchester, New York · implied b. ~1873 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Farrell
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Ireland
Year of Immigration	1892
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth Country	Ireland
Birthplace (normalized)	ireland

1930

Westchester, New …

Head, age 55

Westchester, New York · implied b. ~1875 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Farrell
Given Name	Mary M.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	55
Marital Status	Widowed
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1892
Age at First Marriage	17
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Janitor
Industry	Apartment House
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	English
Home Owned/Rented	R
Home Value / Rent	65
Radio Set	R
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

Westchester-County, New …

Head, age 65

Westchester-County, New York · implied b. ~1875 — 4 household members

Surname	Farrell
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	65
Marital Status	Widowed
Birthplace	Ireland
1935 Residence (City)	Elmsford (village)
1935 Residence (County)	Westchester
Naturalization Status	Naturalized
Class of Worker	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links Mary Farrell 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 Farrell

Head · 1940 · age 65 · b. ~1875 · 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-t0627-02803-00688)

Line	Name	Age	Relation	Occupation	Birthplace
1	James F. Hackett	61	Head	Catholic Priest	New York
2	Maria Eisstant	75	Servant	Housekeeper	Germany
3	Edwin Olson	37	Head	Proprietor	New York
4	Marguerite Olson	37	Wife	—	New York
5	Edwin Olson	14	Son	—	New York
6	Father Gustaf	None	M	—	—
7	Mary Farrell THIS PERSON	65	Head	—	Ireland
8	Mathew A. Farrell	33	Son	Clerk	New York
9	Joseph F. Farrell	24	Son	Laborer	New York
10	Francis J. Farrell	22	Son	Clerk	New York
11	William H. Haich	39	Head	Canvasser	New York
12	Mary C. Haich	43	Wife	—	New York
13	Catherine M. Haich	15	Daughter	—	New York
14	Clyde R. Johnson	36	Lodger	Miner	Illinois
15	Ruth A. Johnson	23	Lodger	—	Missouri
16	Victorine Baummiller	84	Head	—	France
17	Emily Baummiller	58	Daughter	Housekeeper	Massachusetts
18	Sam Adelman	46	Head	Agent	Russia
19	Anna Adelman	42	Wife	—	Russia
20	Selma Adelman	14	Daughter	—	New York
21	Saul Adelman	8	Son	—	New York
22	Benjamin Young	37	Head	Inspector	New York
23	Irene I. Young	26	Wife	—	New York
24	John Heine	40	Head	Route Man	Germany
25	Elinor Heine	34	Wife	—	Pennsylvania
26	James Heine	9	Son	—	New York
27	Mary L. Heine	7	Daughter	—	Pennsylvania
28	Rosalia Barcia	78	Head	—	Italy
29	Frank F. Barcia	44	Son	—	New York
30	Carl J. Barcia	36	Son	Checker	New York
31	Victor A. Elliot	36	Head	Guard	Ireland Eire
32	Eileen M. Elliot	34	Wife	—	Ireland Eire
33	Thelma M. Elliot	15	Daughter	—	Ireland Eire
34	Eileen M. Elliot	11	Daughter	—	Ireland Eire
35	Helen M. Elliot	5	Daughter	—	New York
36	Barbara A. Elliot	3	Daughter	—	New York
37	Carol A. Elliot	2	Daughter	—	New York
38	Albert E. Fowler	40	Head	Salesman	Connecticut
39	Jessie Fowler	36	Wife	—	New York
40	Donald Fowler	15	Son	Delivery Boy	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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