Mary Corcoran — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Philadelphia-County, Pennsylvania

Our Model Tree links this Mary Corcoran across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 3-person household.

Age 78 b. ~1862 Female Head Born: England Widowed

1940 Census Record Details

Census Year	1940
Location	Philadelphia-County, Pennsylvania
Surname	Corcoran
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	78
Marital Status	Widowed
Birthplace	England
1935 Residence (City)	Philadelphia
1935 Residence (County)	Philadelphia
Naturalization Status	Naturalized
Additional Details
Highest Grade	No 6
1935 Residence	Same Place
Birth Country	England
Birthplace (normalized)	england
Township / Ward	Philadelphia
Est. Birth Year	~1862

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
Mary Corcoran	Head	—	78	~1862
John Corcoran	Son	—	54	~1886
William Corcoran	Son	—	44	~1896

Census Appearances

1920

Philadelphia, Pennsylvania

Head, age 54

Philadelphia, Pennsylvania · implied b. ~1866 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Corcoran
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	54
Marital Status	Widowed
Birthplace	England
Year of Immigration	1882
Naturalization Status	Naturalized
Father's Birthplace	England
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Home Owned/Rented	R
Birth Country	England
Birthplace (normalized)	england

1930

Philadelphia, Pennsylvania

Other, age 67

Philadelphia, Pennsylvania · implied b. ~1863 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Corcoran
Given Name	Mary G.
Relationship to Head	Mother-in-law
Sex	F
Color / Race	White
Age	67
Marital Status	Widowed
Birthplace	England
Naturalization Status	Naturalized
Year of Immigration	1900
Father's Birthplace	England
Mother's Birthplace	Ireland
Can Read/Write	Yes
Mother Tongue	English
Birth Country	England
Birthplace (normalized)	england

1940

Philadelphia-County, Pennsylvania

Head, age 78

Philadelphia-County, Pennsylvania · implied b. ~1862 — 3 household members

Surname	Corcoran
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	78
Marital Status	Widowed
Birthplace	England
1935 Residence (City)	Philadelphia
1935 Residence (County)	Philadelphia
Naturalization Status	Naturalized
Highest Grade	No 6
1935 Residence	Same Place
Birth Country	England
Birthplace (normalized)	england

Model Tree

Linked across censuses

Our Model Tree links Mary Corcoran 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 Corcoran

Head · 1940 · age 78 · b. ~1862 · Pennsylvania

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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 — Philadelphia-County, Pennsylvania Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03756-00961)

Line	Name	Age	Relation	Occupation	Birthplace
1	Gertrude M Simpson	45	Daughter	Stenographer	Penna
2	Harry J Machin	48	Head	Pipe Fitter	Penna
3	Nellie Machin	47	Wife	—	Penna
4	Rita Machin	12	Daughter	—	Penna
5	Mary Corcoran THIS PERSON	78	Head	—	England
6	William Corcoran	44	Son	Clerk	Penna
7	John Corcoran	54	Son	—	Penna
8	Edward Kaleta	22	Head	General Helper	Penna
9	Regina Kaleta	20	Wife	—	Penna
10	Regina Kaleta	0	Daughter	—	Penna
11	Ellen Thompson	76	Lodger	—	England
12	Mary Thompson	43	Lodger	—	Penna
13	Thomas Dailey	54	Lodger	Machinist	Penna
14	Richard Law	47	Head	Bookkeeper	Penna
15	Gertrude Law	45	Wife	—	Penna
16	Esther Peterson	33	Head	Teacher	Penna
17	Anne Peterson	31	Sister	Bookkeeper	Penna
18	Ann C Mullen	60	Head	—	Penna
19	Anne H Mullen	22	Daughter	—	Penna
20	Sarah B Davis	63	Head	School Supervisor	Penna
21	Bessie Davis	58	Sister	—	Penna
22	James M Collins	58	Head	Minister	Penna
23	Evelyn R Collins	58	Wife	—	Ohio
24	William Baynham	56	Head	Janitor	Virginia
25	Martha E Baynham	56	Wife	—	North Carolina
26	Ralph Baynham	32	Son	—	Penna
27	Leonard Baynham	30	Son	—	Penna
28	Banks N Baynham	27	Son	—	Penna
29	Benjamin J Baynham	20	Son	—	Penna
30	Joseph Baynham	19	Son	—	Penna
31	Mary Caulk	64	Lodger	—	Maryland
32	Marion Taylor	38	Head	Laborer	Alabama
33	Muriel Byers	22	Lodger	Housemaid	Virginia
34	Frank Baeller	55	Head	Tailor	Austria
35	Teresa Baeller	55	Wife	—	Austria
36	Frank Jr Baeller	31	Son	Machinist	New Jersey
37	Margaret Baeller	29	Daughter	Comptometer Oper.	Penna
38	Mary Baeller	23	Daughter	Hairdresser	Penna
39	Hanson Cohen	62	Head	Janitor	Penna
40	Margaret Cohen	56	Wife	—	Penna

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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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