Mary Mccullough — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Allegheny-County, Pennsylvania

Our Model Tree links this Mary Mccullough across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1861), then head of a 6-person household.

Age 79 b. ~1861 Female Spouse Born: Ireland Married

1940 Census Record Details

Census Year	1940
Location	Allegheny-County, Pennsylvania
Surname	McCullough
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	79
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	Pittsburgh
1935 Residence (County)	Allegheny
Naturalization Status	Naturalized
Additional Details
Highest Grade	No 0
1935 Residence	Same house
Birth Country	Ireland
Birthplace (normalized)	ireland
Township / Ward	Pittsburgh
Est. Birth Year	~1861

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
Mary Mccullough	Spouse	—	79	~1861
Annie O'Hare	Other	—	75	~1865
Mary Mccullough	Other	—	9	~1931
John Mccullough	Son	—	53	~1887
Michael Mccullough	Head	—	79	~1861
Mary Mccullough	Daughter	—	49	~1891

Census Appearances

1920

Allegheny, Pennsylvania

Spouse, age 57

Allegheny, Pennsylvania · implied b. ~1863 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McCullough
Given Name	Mary A.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ireland
Year of Immigration	1885
Naturalization Status	Naturalized
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Irish
Birth Country	Ireland
Year of Naturalization	1895
Birthplace (normalized)	ireland

1930

Allegheny, Pennsylvania

Spouse, age 65

Allegheny, Pennsylvania · implied b. ~1865 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McCullough
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	65
Marital Status	Married
Birthplace	Ireland
Naturalization Status	Naturalized
Year of Immigration	1888
Age at First Marriage	24
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read/Write	Yes
Mother Tongue	English
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

Allegheny-County, Pennsylvania

Spouse, age 79

Allegheny-County, Pennsylvania · implied b. ~1861 — 6 household members

Surname	McCullough
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	79
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	Pittsburgh
1935 Residence (County)	Allegheny
Naturalization Status	Naturalized
Highest Grade	No 0
1935 Residence	Same house
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

Our Model Tree links Mary Mccullough 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 Mccullough

Spouse · 1940 · age 79 · b. ~1861 · 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 — Allegheny-County, Pennsylvania Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03669-00135)

Line	Name	Age	Relation	Occupation	Birthplace
1	Martha Dumont	33	Head	Saleslady	Penna.
2	Elizabeth Dumont	27	Sister	Typist	Penna.
3	Mary Dumont	24	Sister	Saleslady	Penna.
4	Fred Finello	65	Head	Barber	Italy
5	Virginia Finello	23	Daughter	Clerk	Penna.
6	Emma Finello	21	Daughter	Typist	Penna.
7	Joseph Mongelluzzo	40	Son-in-law	Stone Mason	Italy
8	Rosa Mongelluzzo	36	Daughter	—	Penna.
9	Vincent Mongelluzzo	9	Grandson	—	Penna.
10	Sandra Mongelluzzo	5	Granddaughter	—	Penna.
11	Joseph Mongelluzzo	1	Grandson	—	Penna.
12	Charles M. Brand	48	Head	Electrician	Virginia
13	Ruth F. Brand	41	Wife	—	Maryland
14	Charlotte R. Brand	18	Daughter	—	Penna.
15	Oliver Sipple	49	Brother-in-law	Machinist	Maryland
16	Donald A. Mcternan	34	Head	Sign Painter	Penna.
17	Helen Mcternan	31	Wife	—	Penna.
18	Francis Mcternan	9	Daughter	—	Penna.
19	Nancy Mcternan	7	Daughter	—	Penna.
20	George Mcternan	5	Son	—	Penna.
21	Donna Ann Mcternan	1	Daughter	—	Penna.
22	Earl Mcternan	31	Head	Sign Painter	Penna.
23	Marion Mcternan	26	Wife	—	Penna.
24	Barbara Mcternan	5	Daughter	—	Penna.
25	Philip J. Hraber	30	Head	Accountant	Penna.
26	June J. Hraber	26	Wife	—	Penna.
27	Philip M. Hraber	0	Son	—	Penna.
28	Bridget Boylan	45	Head	Clerk	Ireland
29	Raymond Boylan	19	Son	Clerk	New York
30	Paul Boylan	17	Son	—	Penna.
31	John Boylan	17	Son	—	Penna.
32	Patricia Boylan	15	Daughter	—	Penna.
33	Michael Mccullough	79	Head	Repairman	Ireland
34	Mary Mccullough THIS PERSON	79	Wife	—	Ireland
35	John R. Mccullough	53	Son	Policeman	Penna.
36	Mary A. Mccullough	49	Daughter	None	Penna.
37	Mary Mccullough	9	Niece	—	Penna.
38	Annie O'Hare	75	Sister-in-law	—	Ireland
39	Louis Muraco	28	Head	Labourer	Italy
40	Mary Muraco	26	Wife	—	Italy

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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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