Margaret Hamilton — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Marion-County, Indiana

Our Model Tree links this Margaret Hamilton across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 6-person household.

Age 39 b. ~1901 Female Spouse Born: Illinois Married

1940 Census Record Details

Census Year	1940
Location	Marion-County, Indiana
Surname	Hamilton
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Illinois
1935 Residence (City)	Indianapolis
1935 Residence (County)	Marion
Additional Details
Highest Grade	Hs 4
1935 Residence	Same place
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois
Township / Ward	Indianapolis
Est. Birth Year	~1901

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 Margaret	Age	Birth yr
Marvin Hamilton	Son	—	18	~1922
Marvin Hamilton	Head	—	43	~1897
Richard Hamilton	Son	—	11	~1929
William Hamilton	Son	—	16	~1924
Louisa Haas	Other	—	60	~1880
Margaret Hamilton	Spouse	—	39	~1901

Census Appearances

1920

Marion, Indiana

Spouse, age 18

Marion, Indiana · implied b. ~1902 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hamilton
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	18
Marital Status	Married
Birthplace	Illinois
Father's Birthplace	Illinois
Mother's Birthplace	Illinois
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

1930

Marion, Indiana

Other, age 29

Marion, Indiana · implied b. ~1901 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hamilton
Given Name	Margaret W.
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	29
Marital Status	Married
Birthplace	Illinois
Age at First Marriage	18
Father's Birthplace	Illinois
Mother's Birthplace	Illinois
Can Read/Write	Yes
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

1940

Marion-County, Indiana

Spouse, age 39

Marion-County, Indiana · implied b. ~1901 — 6 household members

Surname	Hamilton
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Illinois
1935 Residence (City)	Indianapolis
1935 Residence (County)	Marion
Highest Grade	Hs 4
1935 Residence	Same place
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

Model Tree

Linked across censuses

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

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This person

Anchor record

Margaret Hamilton

Spouse · 1940 · age 39 · b. ~1901 · Indiana

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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 — Marion-County, Indiana Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01130-00950)

Line	Name	Age	Relation	Occupation	Birthplace
41	Maurice A. Hoffle	58	Head	President	Indiana
42	Mabel P. Hoffle	56	Wife	—	Indiana
43	Margaret Hoffle	18	Daughter	—	Indiana
44	Carrie L. Pray	79	Mother-in-law	—	Illinois
45	Flora C. Pray	58	Sister-in-law	—	Indiana
46	Edgar M. Fossburg	31	Head	Superintendent	Pennsylvania
47	Henriette Fossburg	30	Wife	—	Pennsylvania
48	Harold Fossburg	5	Son	—	Indiana
49	Phyllis J. Fossburg	3	Daughter	—	Indiana
50	J. Walter Hannon	49	Head	General Plant Manager	Kansas
51	Helen Hannon	55	Wife	—	Kansas
52	John Hannon	23	Son	—	Missouri
53	Evelyn Hannon	20	Daughter	—	Kansas
54	Marvin E. Hamilton	43	Head	Vice President	Indiana
55	Margaret Hamilton THIS PERSON	39	Wife	—	Illinois
56	Marvin Jr. Hamilton	18	Son	—	Indiana
57	William S. Hamilton	16	Son	—	Indiana
58	Richard C. Hamilton	11	Son	—	Indiana
59	Louisa Haas	60	Housekeeper	Housekeeper	Delaware
60	Rudolph Draubt	52	Head	Manager	Germany
61	Vina Draubt	57	Wife	—	Indiana
62	Lora J. Draubt	21	Daughter	Cook	Indiana
63	Elizabeth Ann Draubt	17	Daughter	—	Michigan
64	Patricia M. Draubt	15	Daughter	—	New Jersey
65	Gayle B. Wolfe	44	Head	Physician	Illinois
66	Fay H. Wolfe	44	Wife	—	Indiana
67	Betsy Wolfe	19	Daughter	—	Indiana
68	Walter Wolfe	17	Son	—	Indiana
69	George Mitchell	69	Servant	Houseman	Georgia
70	Binnie Moore	47	Servant	Maid	Kentucky
71	Ivan T. Rosenfield	51	Head	President	Germany
72	Florence Rosenfield	52	Wife	—	Pennsylvania
73	Sigurd Rosenfield	20	Son	—	Pennsylvania
74	Alice Rosenfield	11	Daughter	—	Pennsylvania
75	G. Everett Smith	44	Head	President	Iowa
76	Grace S. Smith	44	Wife	—	Iowa
77	—	None	—	—	—
78	William H. Allerdice	56	Head	Manager And Superintendent	Indiana
79	Laura K. Allerdice	50	Wife	—	Indiana
80	Marjorie Allerdice	20	Daughter	—	Indiana

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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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