Mary Hill — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Delta-County, Michigan

Our Model Tree links this Mary Hill across the 1920, 1930 and 1940 US Censuses in Delta-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 3-person household.

Age 51 b. ~1889 Female Spouse Born: Finland Married

1940 Census Record Details

Census Year	1940
Location	Delta-County, Michigan
Surname	Hill
Given Name	Mary C
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	51
Marital Status	Married
Birthplace	Finland
1935 Residence (City)	Kipling village
1935 Residence (County)	Delta
Naturalization Status	Naturalized
Additional Details
Class of Worker	0
Highest Grade	H 4
1935 Residence	Same place
Birth Country	Finland
Birthplace (normalized)	finland
Township / Ward	Kipling Village
Est. Birth Year	~1889

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.

3 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Mary	Age	Birth yr
Elsie Hill	Daughter	—	21	~1919
William Hill	Son	—	14	~1926
Mary Hill	Spouse	—	51	~1889

Census Appearances

1920

Delta, Michigan

Spouse, age 30

Delta, Michigan · implied b. ~1890 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hill
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	30
Marital Status	Married
Birthplace	Finland
Year of Immigration	1906
Naturalization Status	Alien
Father's Birthplace	Finland
Mother's Birthplace	Finland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Finnish
Birth Country	Finland
Birthplace (normalized)	finland

1930

Delta, Michigan

Spouse, age 41

Delta, Michigan · implied b. ~1889 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hill
Given Name	Mary C.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	41
Marital Status	Married
Birthplace	Finland
Naturalization Status	Naturalized
Year of Immigration	1910
Age at First Marriage	25
Father's Birthplace	Finland
Mother's Birthplace	Finland
Can Read/Write	Yes
Mother Tongue	Finnish
Birth Country	Finland
Birthplace (normalized)	finland

1940

Delta-County, Michigan

Spouse, age 51

Delta-County, Michigan · implied b. ~1889 — 3 household members

Surname	Hill
Given Name	Mary C
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	51
Marital Status	Married
Birthplace	Finland
1935 Residence (City)	Kipling village
1935 Residence (County)	Delta
Naturalization Status	Naturalized
Class of Worker	0
Highest Grade	H 4
1935 Residence	Same place
Birth Country	Finland
Birthplace (normalized)	finland

Model Tree

Linked across censuses

Our Model Tree links Mary Hill 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 Hill

Spouse · 1940 · age 51 · b. ~1889 · Michigan

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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 — Delta-County, Michigan Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01745-00091)

Line	Name	Age	Relation	Occupation	Birthplace
1	Mary C Hill THIS PERSON	51	Wife	—	Finland
2	Elsie Hill	21	Daughter	Laborer	Michigan
3	William Hill	14	Son	—	Michigan
4	Eva Jaaske	59	Head	—	Finland
5	Norman Gjoland	23	Head	Sawyer	Minnesota
6	Helen Gjoland	26	Wife	—	Michigan
7	Rodger Gjoland	2	Son	—	Michigan
8	Jacob Raspor	47	Head	Laborer	Austria
9	Mary Raspor	50	Wife	—	Austria
10	John Lund	62	Head	—	Finland
11	Anna Lund	62	Wife	—	Finland
12	Otto Lund	27	Son	Laborer	Mich
13	Violet Lund	24	Daughter	—	Mich
14	Leonard Lund	21	Son	Reforestation	Mich
15	Walter Lund	19	Son	Waterman	Mich
16	Harold Lund	17	Son	—	Mich
17	Alice Lund	15	Daughter	—	Mich
18	Dorothea Lund	10	Daughter	—	Mich
19	Louie D Switzer	71	Head	—	Ohio
20	Bernita Switzer	32	Daughter	—	Mich
21	Margaret Switzer	28	Daughter	Saleswoman	Mich
22	Barbara Switzer	21	Daughter	—	Ohio
23	Henry Riley	60	Head	Laborer	Finland
24	Sophie Riley	62	Wife	—	Finland
25	Frank Lagina	51	Head	—	Austria
26	Stephia Lagina	52	Wife	—	Austria
27	Joseph Lagina	19	Son	Laborer	Michigan
28	Melvin Cassell	34	Head	Laborer	Mich
29	Abigail Cassell	26	Wife	—	Mich
30	George G Cassell	6	Son	—	Mich
31	Wayne A Cassell	5	Son	—	Mich
32	Dorothy J Cassell	1	Daughter	—	Mich
33	Walter J Van De Weghe	37	Head	Bookkeeper	Mich
34	Geraldine Van De Weghe	37	Wife	—	Mich
35	June Van De Weghe	13	Daughter	—	Mich
36	Marilyn A Van De Weghe	10	Daughter	—	Mich
37	—	None	—	—	Mich
38	Ernest J Richard	60	Head	Ele Engineer	Mich
39	Henry Richard	58	Brother	Laborer	Mich
40	Ray Sheffer	45	Head	Nursery	Kansas

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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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