Mary Schroeder — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Kent-County, Michigan

Our Model Tree links this Mary Schroeder across the 1920, 1930 and 1940 US Censuses in Kent-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 4-person household.

Age 80 b. ~1860 Female Head Born: Michigan Widowed

1940 Census Record Details

Census Year	1940
Location	Kent-County, Michigan
Surname	Schroeder
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	80
Marital Status	Widowed
Birthplace	Michigan
1935 Residence (City)	Grand Rapids
1935 Residence (County)	Kent
Additional Details
Hours Worked	0
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan
Township / Ward	Grand Rapids
Est. Birth Year	~1860

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
Winifred Schroeder	Daughter	—	53	~1887
Edna Schroeder	Other	—	25	~1915
Mary Schroeder	Head	—	80	~1860
Henry Schroeder	Other	—	54	~1886

Census Appearances

1920

Kent, Michigan

Spouse, age 60

Kent, Michigan · implied b. ~1860 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schroeder
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Michigan
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1930

Kent, Michigan

Other, age 70

Kent, Michigan · implied b. ~1860 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schrouder
Given Name	Mary
Relationship to Head	Mother-in-law
Sex	F
Color / Race	White
Age	70
Marital Status	Widowed
Birthplace	Michigan
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read/Write	Yes
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1940

Kent-County, Michigan

Head, age 80

Kent-County, Michigan · implied b. ~1860 — 4 household members

Surname	Schroeder
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	80
Marital Status	Widowed
Birthplace	Michigan
1935 Residence (City)	Grand Rapids
1935 Residence (County)	Kent
Hours Worked	0
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

Model Tree

Linked across censuses

Our Model Tree links Mary Schroeder 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 Schroeder

Head · 1940 · age 80 · b. ~1860 · 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 — Kent-County, Michigan Open full size

Page Contents

37 people indexed on this census page (nara:1940:m-t0627-01899-00724)

Line	Name	Age	Relation	Occupation	Birthplace
41	John Brethung	66	Head	Proprietor	Michigan
42	Carrie Brethung	64	Wife	Nurse	Michigan
43	Lorraine Brethung	27	Daughter	Trained Nurse	Michigan
44	Marion Brethung	21	Daughter	Helper	Michigan
45	Albert Efting	44	Head	Salesman	Illinois
46	Elizabeth Efting	39	Wife	—	Michigan
47	Howard Efting	16	Son	—	Michigan
48	Lorence Efting	15	Son	—	Michigan
49	Doris Efting	13	Daughter	—	Michigan
50	Norman Efting	8	Son	—	Michigan
51	David Efting	2	Son	—	Michigan
52	Jaro Hess	50	Head	Writer	Czechoslovakia
53	Rosemary Hess	40	Wife	—	New Jersey
54	Jaro A. Hess	5	Son	—	Michigan
55	Mary Schroeder THIS PERSON	80	Head	—	Michigan
56	Winifred Schroeder	53	Daughter	—	Michigan
57	Henry Schroeder	54	Son in law	Salesman	Michigan
58	Edna Schroeder	25	Granddaughter	Stenographer	Michigan
59	James Matthews	23	Head	Time Keeper	Michigan
60	Bernadine Matthews	21	Wife	—	Michigan
61	James Matthews	0	Son	—	Michigan
62	Milo Lawton	48	Head	Salesman	Michigan
63	Georgia Lawton	56	Wife	Order Clerk	Indiana
64	Leo Signor	24	Head	Press Operator	Michigan
65	Doris Signor	21	Wife	—	Michigan
66	Darlene Signor	4	Daughter	—	Michigan
67	Robert Signor	2	Son	—	Michigan
68	George Swaney	35	Head	Salesman	Michigan
69	Helen Swaney	30	Wife	Operator	Michigan
70	Arthur Kitchpaw	27	Head	Truck Driver	Michigan
71	Alberdina Kitchpaw	25	Wife	—	Michigan
72	Edgar Steelman	36	Head	Router	Michigan
73	Violet Steelman	29	Wife	—	Michigan
74	Thomas Steelman	6	Son	—	Michigan
75	Carolyn Steelman	0	Daughter	—	Michigan
76	Phoebe Sargent	24	Head	Teacher	Michigan
77	Gladys Sargent	18	Sister	—	Michigan

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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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