Mary Heller — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Kent-County, Delaware

Our Model Tree links this Mary Heller across the 1920, 1930 and 1940 US Censuses in Kent-County, Delaware (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 4-person household.

Age 54 b. ~1886 Female Spouse Born: Hungary Married

1940 Census Record Details

Census Year	1940
Location	Kent-County, Delaware
Surname	Heller
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	54
Marital Status	Married
Birthplace	Hungary
1935 Residence (City)	3rd Representative District
1935 Residence (County)	KENT
Naturalization Status	Naturalized
Additional Details
Income (1939)	0
Highest Grade	No 6
1935 Residence	Same House
Birth Country	Hungary
Birthplace (normalized)	hungary
Township / Ward	3Rd Representative District
Est. Birth Year	~1886

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
Frank Heller	Son	—	26	~1914
Frank Heller	Head	—	54	~1886
Agnes Heller	Daughter	—	17	~1923
Mary Heller	Spouse	—	54	~1886

Census Appearances

1920

Kent, Delaware

Spouse, age 32

Kent, Delaware · implied b. ~1888 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Heller
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Hungary
Year of Immigration	1903
Naturalization Status	Naturalized
Father's Birthplace	Hungary
Mother's Birthplace	Hungary
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Hungarian
Birth Country	Hungary
Year of Naturalization	1907
Birthplace (normalized)	hungary

1930

Kent, Delaware

Spouse, age 43

Kent, Delaware · implied b. ~1887 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Heller
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Hungary
Naturalization Status	Naturalized
Year of Immigration	1893
Age at First Marriage	25
Father's Birthplace	Hungary
Mother's Birthplace	Hungary
Can Read/Write	Yes
Mother Tongue	Hungarian
Veteran	No
Birth Country	Hungary
Birthplace (normalized)	hungary

1940

Kent-County, Delaware

Spouse, age 54

Kent-County, Delaware · implied b. ~1886 — 4 household members

Surname	Heller
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	54
Marital Status	Married
Birthplace	Hungary
1935 Residence (City)	3rd Representative District
1935 Residence (County)	KENT
Naturalization Status	Naturalized
Income (1939)	0
Highest Grade	No 6
1935 Residence	Same House
Birth Country	Hungary
Birthplace (normalized)	hungary

Model Tree

Linked across censuses

Our Model Tree links Mary Heller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

Show:

This person

Anchor record

Mary Heller

Spouse · 1940 · age 54 · b. ~1886 · Delaware

★ You are viewing this record

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Kent-County, Delaware Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00544-00413)

Line	Name	Age	Relation	Occupation	Birthplace
1	Louise Davis	7	Daughter	—	Delaware
2	George F. Jr. Davis	5	Son	—	Delaware
3	William H. Carter	70	Head	Proprietor	Delaware
4	Ida F. Carter	66	Wife	—	Delaware
5	James K. Carter	19	Son	Salesman	Delaware
6	Norman D. Shorts	48	Head	Farmer	Delaware
7	Blanche Shorts	41	Wife	—	Delaware
8	Grace Shorts	9	Daughter	—	Delaware
9	William Dickerson	18	Lodger	Farm Laborer	Delaware
10	Benjamin Dickerson	16	Lodger	—	Delaware
11	Clarence Graham	41	Hired Hand	Farm Laborer	Delaware
12	Clarence W. Gears	52	Head	W.P.A. Truck Driver	Delaware
13	Henrietta Gears	52	Wife	House Maid	Delaware
14	Clarence W. Jr. Gears	26	Son	Laborer	Delaware
15	Bessie Gears	25	Daughter in Law	Waitress	Delaware
16	Annie P. Gears	82	Mother	—	Delaware
17	Samuel R. Stevens	67	Head	—	Maryland
18	Ida R. Stevens	62	Wife	—	Maryland
19	Lawrence Stevens	31	Son	Farmer	Delaware
20	Albert O'Neal	34	Head	Auto Mechanic	Maryland
21	Mary O'Neal	31	Wife	—	Maryland
22	Albert Jr. O'Neal	12	Son	—	Maryland
23	Maxine O'Neal	10	Daughter	—	Maryland
24	Thomas O'Neal	8	Son	—	Maryland
25	Charlotte O'Neal	6	Daughter	—	Delaware
26	Margaret O'Neal	3	Daughter	—	Delaware
27	Donald O'Neal	0	Son	—	Delaware
28	Frank Heller	54	Head	Concrete Finisher	Hungary
29	Mary Heller THIS PERSON	54	Wife	—	Hungary
30	Frank Jr. Heller	26	Son	Auto Mechanic	New York
31	Agnes Heller	17	Daughter	Maid	Delaware
32	Victor B. Burke	35	Head	Farmer	Delaware
33	Margaret Burke	70	Mother	—	Maryland
34	Lester Graham	43	Head	Farmer	Delaware
35	Addie Graham	38	Wife	—	Maryland
36	Rena Graham	18	Daughter	—	Delaware
37	Marvel Graham	14	Son	—	Delaware
38	Edward Sammons	71	Head	Handy Man	Delaware
39	Rose Sammons	76	Wife	—	Delaware
40	W. L. Wheatley	34	Head	Proprietor	Maryland

Search for Mary Heller

All Mary Heller Census Records Discover Heller Family Tree

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)

Report inaccurate data