Mary Brennan — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Philadelphia-County, Pennsylvania

Our Model Tree links this Mary Brennan across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 5-person household.

Age 62 b. ~1878 Female Head Born: Ireland Widowed

1940 Census Record Details

Census Year	1940
Location	Philadelphia-County, Pennsylvania
Surname	Brennan
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	62
Marital Status	Widowed
Birthplace	Ireland
1935 Residence (City)	Philadelphia
1935 Residence (County)	Philadelphia
Naturalization Status	Naturalized
Additional Details
Hours Worked	0
Income (1939)	0
Highest Grade	No 6
1935 Residence	Same house
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	Philadelphia
Est. Birth Year	~1878

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
Kathryn Donahue	Daughter	—	33	~1907
Mary Brennan	Head	—	62	~1878
Hugh Durkin	Other	—	59	~1881
William Donahue	Son	—	11	~1929
James Brennan	Son	—	24	~1916

Census Appearances

1920

Philadelphia, Pennsylvania

Other, age 40

Philadelphia, Pennsylvania · implied b. ~1880 — 16 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brennan
Given Name	Mary E.
Relationship to Head	Mother in law
Sex	F
Color / Race	White
Age	40
Marital Status	Widowed
Birthplace	Ireland
Year of Immigration	1890
Naturalization Status	Naturalized
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Irish
Birth Country	Ireland
Year of Naturalization	1906
Birthplace (normalized)	ireland

1930

Philadelphia, Pennsylvania

Other, age 52

Philadelphia, Pennsylvania · implied b. ~1878 — 38 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brennan
Given Name	Mary E.
Relationship to Head	O
Sex	F
Color / Race	White
Age	52
Marital Status	Widowed
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1900
Age at First Marriage	25
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	none
Can Read/Write	Yes
Mother Tongue	English
Home Owned/Rented	10000
Home Value / Rent	R
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

Philadelphia-County, Pennsylvania

Head, age 62

Philadelphia-County, Pennsylvania · implied b. ~1878 — 5 household members

Surname	Brennan
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	62
Marital Status	Widowed
Birthplace	Ireland
1935 Residence (City)	Philadelphia
1935 Residence (County)	Philadelphia
Naturalization Status	Naturalized
Hours Worked	0
Income (1939)	0
Highest Grade	No 6
1935 Residence	Same house
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links Mary Brennan 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 Brennan

Head · 1940 · age 62 · b. ~1878 · 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

39 people indexed on this census page (nara:1940:m-t0627-03747-00466)

Line	Name	Age	Relation	Occupation	Birthplace
1	William Lindsey	58	Lodger	—	Penna.
2	Eugene Patterson	45	Head	Truck Driver	Penna.
3	Jeannette Patterson	49	Wife	—	Penna.
4	Edward Patterson	15	Son	—	Penna.
5	Ella Wilson	69	Head	—	Delaware
7	Harry Kanefsky	48	Head	Glass Cutter	New Jersey
8	Minnie Kanefsky	43	Wife	—	Penna.
9	Charles Kanefsky	21	Son	—	Penna.
10	Isabell Kanefsky	19	Daughter	New Worker	Penna.
11	Reba Kanefsky	16	Daughter	New Worker	Penna.
12	Louis Taub	49	Lodger	Seaman	Russia
13	Celia Mehr	28	Lodger	Sales Lady	Penna.
14	William Ramsey	35	Head	Plumber	Penna.
15	Gladys Ramsey	33	Wife	—	Penna.
16	William Ramsey	6	Son	—	Penna.
17	Richard Ramsey	4	Son	—	Penna.
18	Edward Quinn	42	Head	Loom Fixer	Penna.
19	Sabina Quinn	40	Wife	—	Penna.
20	Edward Quinn	18	Son	New Worker	Penna.
21	John Quinn	16	Son	—	Penna.
22	Kathryn Quinn	5	Daughter	—	Penna.
23	William Orser	42	Head	Guard	Penna.
24	Elizabeth Orser	44	Wife	—	Penna.
25	Raymond Farran	43	Brother in law	Brakeman	Penna.
26	Robert Farran	41	Brother in law	Policeman	Penna.
27	Mary Brennan THIS PERSON	62	Head	—	Ireland
28	James Brennan	24	Son	Pressman	Penna.
29	Kathryn Donahue	33	Daughter	Waitress	Penna.
30	William Donahue	11	Son	—	Penna.
31	Hugh Durkin	59	Brother	—	Ireland
32	Charles Culver	43	Head	Dentist	Penna.
33	Florence Culver	43	Wife	—	Penna.
34	Gretchen Culver	16	Daughter	—	Penna.
35	Mary Culver	12	Daughter	—	Penna.
36	Helen Campbell	27	Head	Telegraph Operator	Penna.
37	Gloria Campbell	18	Daughter	New Worker	Penna.
38	Daniel Sheeran	68	Father	—	Penna.
39	Thomas Myers	58	Head	Bookkeeper	Penna.
40	Katherine Nevale	65	Lodger	Housekeeper	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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