Mary Cook — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Dallas-County, Texas

Our Model Tree links this Mary Cook across the 1920, 1930 and 1940 US Censuses in Dallas-County, Texas (XGBoost, ~Confirmed), with identified parents Early & Novella — first a daughter (b.~1912), then head of a 3-person household.

Age 28 b. ~1912 Female Daughter Born: Texas Single

1940 Census Record Details

Census Year	1940
Location	Dallas-County, Texas
Surname	Cook
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	28
Marital Status	Single
Birthplace	Texas
1935 Residence (City)	J. P. No 1
1935 Residence (County)	Dallas
Additional Details
Industry	0
Highest Grade	H-4
1935 Residence	Same house
Birth State	Texas
Birth Country	United States
Birthplace (normalized)	texas
Township / Ward	J P No 1
Est. Birth Year	~1912

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
Mary Cook	Daughter	—	28	~1912
Early Cook	Head	—	71	~1869
Novella Cook	Spouse	—	62	~1878

Census Appearances

1920

Dallas, Texas

Daughter, age 8

Dallas, Texas · implied b. ~1912 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cook
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	8
Marital Status	Single
Birthplace	Texas
Father's Birthplace	Tennessee
Mother's Birthplace	Kentucky
Birth State	Texas
Birth Country	United States
Birthplace (normalized)	texas

1930

Dallas, Texas

Daughter, age 18

Dallas, Texas · implied b. ~1912 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cook
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	18
Marital Status	Single
Birthplace	Texas
Father's Birthplace	Tennessee
Mother's Birthplace	Kentucky
Can Read/Write	Yes
Birth State	Texas
Birth Country	United States
Birthplace (normalized)	texas

1940

Dallas-County, Texas

Daughter, age 28

Dallas-County, Texas · implied b. ~1912 — 3 household members

Surname	Cook
Given Name	Mary
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	28
Marital Status	Single
Birthplace	Texas
1935 Residence (City)	J. P. No 1
1935 Residence (County)	Dallas
Industry	0
Highest Grade	H-4
1935 Residence	Same house
Birth State	Texas
Birth Country	United States
Birthplace (normalized)	texas

Model Tree

Model Tree available

Our Model Tree links Mary Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Early Cook (~0.92 confidence) and mother Novella Cook (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Early Cook

b. ~1869

Source father

● Household · direct · ~0.92

Mother

Novella Cook

b. ~1878

Source mother

● Household · direct · ~0.92

This person

Anchor record

Mary Cook

Daughter · 1940 · age 28 · b. ~1912 · Texas

★ You are viewing this record

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Dallas-County, Texas Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-04015-00833)

Line	Name	Age	Relation	Occupation	Birthplace
41	William A Doss	60	Head	Watchman	Arkansas
42	Nora Doss	59	Wife	—	Arkansas
43	Billie Doss	12	Daughter	—	Texas
44	Rosie Wimberly	36	Head	Seamstress	Texas
45	Juanita Wimberly	14	Daughter	—	Texas
46	Garland Wimberly	11	Son	—	Texas
47	Jo Anne Wimberly	8	Daughter	—	Texas
48	Floyd Stanley	39	Head	Forger	Texas
49	Mary Stanley	39	Wife	—	Texas
50	Irving Becker	48	Head	Carpenter	Texas
51	Rosa Lee Becker	42	Wife	—	Texas
52	Irving Becker	18	Son	Dairy Hand	Texas
53	Frank Becker	9	Son	—	Texas
54	Ruth Ransome	23	Neice	Nurse	Texas
55	Tom F Knight	65	Head	Farmer	Alabama
56	William A Knight	28	Son	Farm Helper	Texas
57	Lena Luck	42	Daughter	Operator	Tennessee
58	William R Luck	22	Grandson	Machinist	Texas
59	John Luck	20	Grandson	Parts Man	Texas
60	Cordelia Luck	18	Granddaughter	File Clerk	Texas
61	Shelly E Weir	37	Head	Electrician	Mississippi
62	Gladys Weir	37	Wife	—	Mississippi
63	Mary Weir	13	Daughter	—	Michigan
64	Lettus Latham	51	Head	Farmer	Mississippi
65	Oma Latham	48	Wife	—	Mississippi
66	Benton Latham	20	Son	Farm Hand	Texas
67	Jennie Latham	18	Daughter	—	Texas
68	Early Cook	71	Head	Farmer	Tennessee
69	Novella Cook	62	Wife	—	Kentucky
70	Mary Cook THIS PERSON	28	Daughter	—	Texas
71	Bailey Walker	32	Head	Farmer	Texas
72	Leola Walker	32	Wife	—	Texas
73	Billy Walker	11	Son	—	Texas
74	Bobby Walker	5	Son	—	Texas
75	Margaret A Walker	0	Daughter	—	Texas
76	Ernest Boettcher	42	Head	Own Agency	Germany
77	Velma Boettcher	38	Wife	—	Texas
78	Ernest R Boettcher	8	Son	—	Texas
79	Dewey Boettcher	5	Daughter	—	Texas
80	Dewey Bannister	31	Head	Farm Hand	Texas

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Pedigree Summary

Mary

Gen 1 · 2 parents ~0.92

Max depth 4 (1900–1950 window)

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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