Mary Cooper — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Hillsborough-County, Florida

Our Model Tree links this Mary Cooper across the 1920, 1930 and 1940 US Censuses in Hillsborough-County, Florida (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 3-person household.

Age 40 b. ~1900 Female Spouse Born: Florida Married

1940 Census Record Details

Census Year	1940
Location	Hillsborough-County, Florida
Surname	Cooper
Given Name	Mary J
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Florida
1935 Residence (City)	Tampa City
1935 Residence (County)	Hillsborough
Additional Details
Highest Grade	H 4
1935 Residence	Same place
Birth State	Florida
Birth Country	United States
Birthplace (normalized)	florida
Township / Ward	Tampa City
Est. Birth Year	~1900

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
Rollins Cooper	Head	—	44	~1896
Rollins Cooper	Son	—	19	~1921
Mary Cooper	Spouse	—	40	~1900

Census Appearances

1920

Hillsborough, Florida

Spouse, age 21

Hillsborough, Florida · implied b. ~1899 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cooper
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	21
Marital Status	Married
Birthplace	Florida
Father's Birthplace	Spain
Mother's Birthplace	Italy
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Florida
Birth Country	United States
Birthplace (normalized)	florida

1930

Hillsborough, Florida

Spouse, age 30

Hillsborough, Florida · implied b. ~1900 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cooper
Given Name	Mary T.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	30
Marital Status	Married
Birthplace	Florida
Age at First Marriage	18
Father's Birthplace	Spain
Mother's Birthplace	Florida
Occupation	none
Can Read/Write	Yes
Birth State	Florida
Birth Country	United States
Birthplace (normalized)	florida

1940

Hillsborough-County, Florida

Spouse, age 40

Hillsborough-County, Florida · implied b. ~1900 — 3 household members

Surname	Cooper
Given Name	Mary J
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Florida
1935 Residence (City)	Tampa City
1935 Residence (County)	Hillsborough
Highest Grade	H 4
1935 Residence	Same place
Birth State	Florida
Birth Country	United States
Birthplace (normalized)	florida

Model Tree

Linked across censuses

Our Model Tree links Mary Cooper 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 Cooper

Spouse · 1940 · age 40 · b. ~1900 · Florida

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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 — Hillsborough-County, Florida Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00635-00359)

Line	Name	Age	Relation	Occupation	Birthplace
41	Thomas A Jones	53	Head	Foreman	Georgia
42	Ruby Jones	41	Wife	Beautician	Georgia
43	Thomas Jones	20	Son	Salesman	Virginia
44	Ann Jones	18	Daughter	Beautician	Virginia
45	Charles Loggins	27	Head	Vulcanizing	Georgia
46	Helen R Loggins	25	Wife	—	Florida
47	Wayne Loggins	2	Son	—	Florida
48	Clayton T Baker	60	Head	Printer	Florida
49	Mary Baker	59	Wife	—	Florida
50	Louise Baker	36	Daughter	Saleslady	Florida
51	Rochelle D Du Pree	54	Head	Ironer	Georgia
52	Marguerite Du Pree	17	Daughter	—	Georgia
53	William Du Pree	15	Son	—	Florida
54	Amelia Mcswain	47	Lodger	—	Tennessee
55	John Malloy	43	Head	Foreman	Ohio
56	Leona V Malloy	42	Wife	—	Kentucky
57	John Jr Malloy	16	Son	—	Ohio
58	Norman Malloy	11	Son	—	Ohio
59	Robert Malloy	3	Son	—	Florida
60	Mother Malloy	67	Father	—	Ohio
61	Jack Key	23	Head	Shipping Clerk	Georgia
62	Geraldine C Key	22	Wife	—	Florida
63	Jacqueline Key	2	Daughter	—	Florida
64	Thomas G Paulos	57	Head	Laborer	Florida
65	Frenchie Paulos	54	Wife	—	Alabama
66	William Gonzalez	48	Head	Cigar Maker	Illinois
67	Hope Gonzalez	38	Wife	Stenographer	Florida
68	John G Wilson	60	Head	Carpenter	No Carolina
69	Irene Wilson	60	Wife	Radio Checker	Virginia
70	Silas R Hutchinson	69	Head	Retired	Massachusetts
71	Eddie Hutchinson	64	Sister	—	Massachusetts
72	Cora H Bullock	69	Head	Stenographer	Florida
73	Collier Lucie J.B. Bullock	44	Sister	—	Florida
74	Joseph D Cooper	70	Head	Carpenter	Ohio
75	Anna Cooper	63	Wife	—	Pennsylvania
76	Alvin Du Pree	24	Lodger	Trimmer	Florida
77	Velma Du Pree	21	Lodger	—	Georgia
78	Rollins P Cooper	44	Head	Salesman	Florida
79	Mary J Cooper THIS PERSON	40	Wife	—	Florida
80	Rollins Cooper	19	Son	—	Florida

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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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