Mary Keefe — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Keefe across the 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 6-person household.

Age 43 b. ~1897 Female Spouse Born: New York Married

1940 Census Record Details

Census Year	1940
Location	Erie-County, New York
Surname	Keefe
Given Name	Mary M.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	43
Marital Status	Married
Birthplace	New York
1935 Residence (City)	Buffalo City
1935 Residence (County)	Erie
Additional Details
Highest Grade	No 8
1935 Residence	Same Place
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york
Township / Ward	Buffalo City
Est. Birth Year	~1897

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Vincent Keefe	Son	—	8	~1932
William Keefe	Head	—	42	~1898
Theresa Keefe	Daughter	—	7	~1933
Lawrence Keefe	Son	—	11	~1929
William Keefe	Son	—	16	~1924
Mary Keefe	Spouse	—	43	~1897

Census Appearances

1930

Erie, New …

Other, age 33

Erie, New York · implied b. ~1897 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Keefe
Given Name	Mary M
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	33
Marital Status	Married
Birthplace	New York
Age at First Marriage	22
Father's Birthplace	Wales
Mother's Birthplace	New York
Can Read/Write	Yes
Birth State	New York
Birth Country	United States
Birthplace (normalized)	new york

1940

Erie-County, New …

Spouse, age 43

Erie-County, New York · implied b. ~1897 — 6 household members

Surname	Keefe
Given Name	Mary M.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	43
Marital Status	Married
Birthplace	New York
1935 Residence (City)	Buffalo City
1935 Residence (County)	Erie
Highest Grade	No 8
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 Keefe across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Mary Keefe

Spouse · 1940 · age 43 · b. ~1897 · 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 — Erie-County, New York Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-02835-00356)

Line	Name	Age	Relation	Occupation	Birthplace
1	Angela La Marca	44	Head	Draftsman	Italy
2	Crossifica La Marca	34	Wife	—	Italy
3	Joseph La Marca	12	Son	—	New York
4	Frank La Marca	8	Son	—	New York
5	Edward P. Fuessler	51	Head	Fruit Merchant	Pennsylvania
6	Milly Fuessler	46	Wife	—	New York
7	Edward C. Fuessler	20	Son	—	New York
8	Robert F. Fuessler	15	Son	—	New York
9	Clara Noehey	50	Sister in law	Head Cashier	New York
10	Clarence E. Brugger	54	Head	Paper Salesman	Massachusetts
11	Ethel K. Brugger	56	Wife	—	Canada English
12	Harvey D. Colvey	43	Head	Superintendent	New York
13	Kathleen Colvey	42	Wife	—	New York
14	Norma Colvey	15	Daughter	—	New York
15	Raymond Colvey	13	Son	—	New York
16	Martin A. Fisher	55	Head	Treasurer	New York
17	Catherine C. Fisher	55	Wife	—	New York
18	John C. Bates	42	Head	Vice President	New York
19	Geraldine R. Bates	31	Wife	—	New York
20	John C. Jr. Bates	3	Son	—	New York
21	William Keefe	42	Head	Vice Pres.	New York
22	Mary M. Keefe THIS PERSON	43	Wife	—	New York
23	William Keefe	16	Son	—	New York
24	Lawrence Keefe	11	Son	—	New York
25	Vincent Keefe	8	Son	—	New York
26	Theresa Keefe	7	Daughter	—	New York
27	Louis A. Kreis	46	Head	Vice-Pres.	New York
28	Lillian L. Kreis	46	Wife	—	New York
29	Helen M. Kreis	23	Daughter	Teacher (Sub)	New York
30	Henry M. Martin	72	Head	Foreman	New York
31	Sarah A. Martin	77	Wife	—	Canada English
32	Elmer W. Navel	42	Head	Salesman	New York
33	Jeanette M. Navel	40	Wife	Secretary	New York
34	Charles P. Rooney	49	Head	Manager Used Car Dept	Pennsylvania
35	Margaret L. Rooney	43	Wife	—	New York
36	Marlock, Kathryn Rooney	85	Mother in law	—	New York
37	Thomas P. Murray	38	Head	Clerk	New York
38	Edna Murray	39	Wife	—	New York
39	Thomas P. Jr. Murray	1	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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