Mary Cunningham — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Wayne-County, Michigan

Our Model Tree links this Mary Cunningham across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1895), then head of a 3-person household.

Age 45 b. ~1895 Female Spouse Born: Scotland Married

1940 Census Record Details

Census Year	1940
Location	Wayne-County, Michigan
Surname	Cunningham
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Detroit city
1935 Residence (County)	Wayne
Naturalization Status	Naturalized
Additional Details
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Scotland
Birthplace (normalized)	scotland
Township / Ward	Detroit City
Est. Birth Year	~1895

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
Henry Cunningham	Head	—	52	~1888
Richard Cunningham	Son	—	21	~1919
Mary Cunningham	Spouse	—	45	~1895

Census Appearances

1920

Wayne, Michigan

Spouse, age 28

Wayne, Michigan · implied b. ~1892 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cunningham
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	28
Marital Status	Married
Birthplace	Scotland
Naturalization Status	un
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Scotch
Birth Country	Scotland
Year of Naturalization	un
Birthplace (normalized)	scotland

1930

Wayne, Michigan

Spouse, age 34

Wayne, Michigan · implied b. ~1896 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cunningham
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	34
Marital Status	Married
Birthplace	Scotland
Naturalization Status	First papers filed
Year of Immigration	1923
Age at First Marriage	23
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Can Read/Write	Yes
Mother Tongue	English
Birth Country	Scotland
Birthplace (normalized)	scotland

1940

Wayne-County, Michigan

Spouse, age 45

Wayne-County, Michigan · implied b. ~1895 — 3 household members

Surname	Cunningham
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Detroit city
1935 Residence (County)	Wayne
Naturalization Status	Naturalized
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Scotland
Birthplace (normalized)	scotland

Model Tree

Linked across censuses

Our Model Tree links Mary Cunningham 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 Cunningham

Spouse · 1940 · age 45 · b. ~1895 · 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 — Wayne-County, Michigan Open full size

Page Contents

36 people indexed on this census page (nara:1940:m-t0627-01888-00144)

Line	Name	Age	Relation	Occupation	Birthplace
41	Harry J Barkwell	44	Head	Refrigerator Serviceman	Canada English
42	Angeline Barkwell	41	Wife	Switchboard Opr	Canada English
43	George Mahlmeister	32	Head	Telephone Installer	Michigan
44	Ethel Mahlmeister	29	Wife	—	Canada English
45	George Jr Mahlmeister	10	Son	—	Michigan
46	James Mahlmeister	9	Son	—	Michigan
47	Dimitry Cook	27	Head	Auto Mechanic	Russia
48	Beatrice Cook	26	Wife	—	Michigan
49	Diane Cook	4	Daughter	—	Michigan
50	Allan Cook	2	Son	—	Michigan
51	Irwin Colby	36	Head	Machine Set-Up Man	Michigan
52	Maxine Colby	22	Wife	Housework	Michigan
53	Albert Thomas	26	Head	Sign Painter	Michigan
54	Gertrude Thomas	25	Wife	Bookkeeper	New Jersey
55	William J Walker	58	Head	Parts Inspector	England
56	Harriett H Walker	58	Wife	—	England
57	William Jr Walker	34	Son	Laborer	Canada English
58	Clarence Klann	30	Head	Lathe Hand	Michigan
59	Florence Klann	27	Wife	—	Michigan
60	Marlene Klann	2	Daughter	—	Michigan
61	Joseph Bojas	47	Head	Truck Driver	Michigan
62	Mildred Bojas	35	Wife	—	Czechoslovakia
63	Rose Bojas	11	Daughter	—	Michigan
64	Edward Bojas	10	Son	—	Michigan
65	Rose Bojas	72	Mother	—	Czechoslovakia
66	Fred Qualmann	57	Head	Crane Operator	Michigan
67	Freda Qualmann	47	Wife	Restaurant Manager	Michigan
68	Edna Qualmann	20	Daughter	—	Michigan
69	Fred Jr Qualmann	13	Son	—	Michigan
70	Eleanor Qualmann	11	Daughter	—	Michigan
71	Henry H Cunningham	52	Head	Brass Finisher	Canada English
72	Mary Cunningham THIS PERSON	45	Wife	—	Scotland
73	Richard Cunningham	21	Son	Musician	Canada English
74	Fred May	53	Head	Foreman Auto Factory	Canada English
75	Jessie May	52	Wife	—	Canada English
76	Harvey May	25	Son	Box Maker	Canada English

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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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