Bertha Davis — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Campbell-County, Kentucky

Our Model Tree links this Bertha Davis across the 1920, 1930 and 1940 US Censuses in Campbell-County, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 3-person household.

Age 52 b. ~1888 Female Head Born: Kentucky Widowed

1940 Census Record Details

Census Year	1940
Location	Campbell-County, Kentucky
Surname	Davis
Given Name	Bertha
Relationship to Head	Head
Sex	F
Color / Race	White
Age	52
Marital Status	Widowed
Birthplace	Kentucky
1935 Residence (City)	Bellevue City
1935 Residence (County)	Campbell
Additional Details
Occupation	Housework
Industry	Private Family
Class of Worker	PW
Hours Worked	4
Income (1939)	260
Highest Grade	No 8
1935 Residence	Same place
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky
Occupation	Housework
Township / Ward	Bellevue City
Est. Birth Year	~1888

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 Bertha	Age	Birth yr
Alice Davis	Daughter	—	18	~1922
Bertha Davis	Head	—	52	~1888
H Davis	Son	—	25	~1915

Census Appearances

1920

Campbell, Kentucky

Spouse, age 31

Campbell, Kentucky · implied b. ~1889 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Davis
Given Name	Bertha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	31
Marital Status	Married
Birthplace	Kentucky
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1930

Campbell, Kentucky

Spouse, age 42

Campbell, Kentucky · implied b. ~1888 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Davis
Given Name	Bertha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Kentucky
Age at First Marriage	22
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Can Read/Write	Yes
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1940

Campbell-County, Kentucky

Head, age 52

Campbell-County, Kentucky · implied b. ~1888 — 3 household members

Surname	Davis
Given Name	Bertha
Relationship to Head	Head
Sex	F
Color / Race	White
Age	52
Marital Status	Widowed
Birthplace	Kentucky
1935 Residence (City)	Bellevue City
1935 Residence (County)	Campbell
Occupation	Housework
Industry	Private Family
Class of Worker	PW
Hours Worked	4
Income (1939)	260
Highest Grade	No 8
1935 Residence	Same place
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

Model Tree

Linked across censuses

Our Model Tree links Bertha Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Bertha Davis

Head · 1940 · age 52 · b. ~1888 · Kentucky

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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 — Campbell-County, Kentucky Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01290-00151)

Line	Name	Age	Relation	Occupation	Birthplace
1	Dolores Braukman	10	Daughter	—	Kentucky
2	John Jr. Braukman	6	Son	—	Kentucky
3	Perry E. Day	50	Head	Production Manager	Illinois
4	Gladys Day	39	Wife	—	Indiana
5	Perry Day	19	Son	Attendant	Illinois
6	Charles Wilson	30	Head	Foreman	Ohio
7	Marie Wilson	24	Wife	—	Tennessee
8	Warren Miller	19	Brother-in-law	Helper	Tennessee
9	David Revell	53	Head	Meat Cutter	Kentucky
10	Lillie Revell	54	Wife	—	Ohio
11	Robert Slay	57	Head	Plasterer	Kentucky
12	Nellie Slay	49	Wife	—	Ohio
13	Virginia Slay	18	Daughter	Beautician	Kentucky
14	Mary Slay	7	Daughter	—	Kentucky
15	Harry Bittner	32	Head	Polisher	Ohio
16	Marcella Bittner	25	Wife	—	Kentucky
17	Carolyn Jean Bittner	4	Daughter	—	Kentucky
18	Edward J. Mettlin	51	Head	Sales Manager	Kentucky
19	Martha Mettlin	42	Wife	—	Kentucky
20	Dorothy Mettlin	17	Daughter	—	Kentucky
21	Wesley Pelstring	36	Head	Clerk	Kentucky
22	Lucille Pelstring	39	Wife	—	Kentucky
23	Casimir Knecht	53	Head	Machinist	Kentucky
24	Loretta Knecht	48	Wife	—	Ohio
25	Louisa Knecht	76	Mother	—	Kentucky
26	John Schmidt	53	Head	Machinist	Ohio
27	William Schmidt	49	Wife	—	Kentucky
28	Bertha Davis THIS PERSON	52	Head	Housework	Kentucky
29	H. Russell Davis	25	Son	Office Work	Kentucky
30	Alice Davis	18	Daughter	Typist	Kentucky
31	Harold Willenbrink	41	Head	Optician	Kentucky
32	Marie Willenbrink	36	Wife	—	Ohio
33	Joan Willenbrink	11	Daughter	—	Kentucky
34	William Adams	36	Head	Plumbing + Heating	Kentucky
35	Emma Adams	28	Wife	—	Indiana
36	Hubert Wade	35	Head	Truck Driver	Georgia
37	Vera Wade	32	Wife	Machine Operator	Georgia
38	John C. Bobzien	63	Head	Clerk	Kentucky
39	Lorene Bobzien	58	Wife	—	Ohio
40	J. Kenneth Bobzien	32	Son	Painting	Kentucky

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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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