Mary Cullen — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Baltimore-City-County, Maryland

Our Model Tree links this Mary Cullen across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 4-person household.

Age 64 b. ~1876 Female Spouse Born: MARYLAND Married

1940 Census Record Details

Census Year	1940
Location	Baltimore-City-County, Maryland
Surname	CULLEN
Given Name	MARY A.
Relationship to Head	WIFE
Sex	F
Color / Race	White
Age	64
Marital Status	Married
Birthplace	MARYLAND
1935 Residence (City)	BALTIMORE CITY
1935 Residence (County)	Baltimore City
Additional Details
Industry	NONE
Highest Grade	No 6
1935 Residence	SAME HOUSE
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland
Township / Ward	Baltimore City
Est. Birth Year	~1876

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 Cullen	Spouse	—	64	~1876
Patrick Cullen	Head	—	64	~1876
Mae Cullen	Daughter	—	35	~1905
James Cullen	Son	—	28	~1912

Census Appearances

1920

Baltimore, Maryland

Spouse, age 43

Baltimore, Maryland · implied b. ~1877 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cullen
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Maryland
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1930

Baltimore, Maryland

Spouse, age 53

Baltimore, Maryland · implied b. ~1877 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kellen
Given Name	Mary H.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Maryland
Age at First Marriage	31
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Can Read/Write	Yes
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1940

Baltimore-City-County, Maryland

Spouse, age 64

Baltimore-City-County, Maryland · implied b. ~1876 — 4 household members

Surname	CULLEN
Given Name	MARY A.
Relationship to Head	WIFE
Sex	F
Color / Race	White
Age	64
Marital Status	Married
Birthplace	MARYLAND
1935 Residence (City)	BALTIMORE CITY
1935 Residence (County)	Baltimore City
Industry	NONE
Highest Grade	No 6
1935 Residence	SAME HOUSE
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

Model Tree

Linked across censuses

Our Model Tree links Mary Cullen 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 Cullen

Spouse · 1940 · age 64 · b. ~1876 · Maryland

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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 — Baltimore-City-County, Maryland Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01541-00174)

Line	Name	Age	Relation	Occupation	Birthplace
1	Edward N. Le Faiver	19	STEP SON	Sheet Metal Helper	MARYLAND
2	Jane L. Le Faiver	17	STEP DAUGHTER	—	MARYLAND
3	John A. Buffington	29	HEAD	Commission Merchant	MARYLAND
4	Nellie G. Buffington	30	WIFE	—	MARYLAND
5	John A. Buffington	4	SON	—	MARYLAND
6	Barbara L. Buffington	2	DAUGHTER	—	MARYLAND
7	George F. Griffin	42	HEAD	Boilermaker	CONNECTICUT
8	Helen D. Griffin	45	WIFE	—	MARYLAND
9	George F. Griffin	10	SON	—	MARYLAND
10	Mary T. Griffin	9	DAUGHTER	—	MARYLAND
11	Helen D. Griffin	8	DAUGHTER	—	MARYLAND
12	Kathleen M. Griffin	5	DAUGHTER	—	MARYLAND
13	Mary J. Dewees	69	MOTHER IN LAW	—	MARYLAND
14	Patrick J. Cullen	64	HEAD	Guard	IRELAND
15	Mary A. Cullen THIS PERSON	64	WIFE	—	MARYLAND
16	Mae C. Cullen	35	DAUGHTER	Banking Clerk	MARYLAND
17	James P. Cullen	28	SON	Filing Clerk	MARYLAND
18	Walter C. Barders	46	HEAD	Post Office Clerk	MARYLAND
19	Helen E. Barders	46	WIFE	—	MARYLAND
20	Walter C. Barders	22	SON	Meter Clerk	MARYLAND
21	Trevillian M. Rogers	59	HEAD	Proof Reader	MARYLAND
22	Edna S. Rogers	39	WIFE	—	MARYLAND
23	Mary T. Rogers	8	DAUGHTER	—	MARYLAND
24	Edward B. Crowley	67	HEAD	Tile Setter	MARYLAND
25	Ellen M. Crowley	63	WIFE	—	MARYLAND
26	William P. Crowley	53	BROTHER	—	MARYLAND
27	John P. Campbell	40	HEAD	Technician	MARYLAND
28	Margaret Campbell	34	WIFE	—	MARYLAND
29	Mary A. Campbell	11	DAUGHTER	—	MARYLAND
30	John C. Campbell	10	SON	—	MARYLAND
31	Philip L. Le Compt	35	HEAD	Salesman	MARYLAND
32	Marie E. Le Compt	32	WIFE	—	MARYLAND
33	Rosemary Le Compt	11	DAUGHTER	—	MARYLAND
34	John A. Le Compt	7	SON	—	MARYLAND
35	Bernard J. Reynolds	55	HEAD	Salesman	MARYLAND
36	Mary L. Reynolds	38	WIFE	—	VIRGINIA
37	John B. Reynolds	7	SON	—	MARYLAND
38	George F. Bishop	52	HEAD	Bookkeeper	MARYLAND
39	Mary A. Bishop	48	WIFE	—	MARYLAND
40	Edna Jane Bishop	18	DAUGHTER	—	MARYLAND

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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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