Bertha Thompson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Baltimore-City-County, Maryland

Our Model Tree links this Bertha Thompson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 6-person household.

Age 45 b. ~1895 Female Head Born: Maryland Married

1940 Census Record Details

Census Year	1940
Location	Baltimore-City-County, Maryland
Surname	Thompson
Given Name	Bertha
Relationship to Head	Head
Sex	F
Color / Race	Black
Age	45
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Additional Details
Industry	H
Highest Grade	No 3
1935 Residence	Same Place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland
Township / Ward	Baltimore 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.

6 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Bertha	Age	Birth yr
Bertha Thompson	Head	—	45	~1895
Thomas Butler	Other	—	57	~1883
Roland Thompson	Son	—	4	~1936
Jerome Thompson	Son	—	11	~1929
James Thompson	Son	—	10	~1930
William Thompson	Son	—	7	~1933

Census Appearances

1920

Baltimore, Maryland

Spouse, age 25

Baltimore, Maryland · implied b. ~1895 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thompson
Given Name	Bertha
Relationship to Head	Wife
Sex	F
Color / Race	Black
Age	25
Marital Status	Married
Birthplace	Maryland
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1930

Baltimore, Maryland

Other, age 35

Baltimore, Maryland · implied b. ~1895 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thompson
Given Name	Bertha
Relationship to Head	Wife-H
Sex	F
Color / Race	Black
Age	35
Marital Status	Married
Birthplace	Maryland
Age at First Marriage	19
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Can Read/Write	Yes
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1940

Baltimore-City-County, Maryland

Head, age 45

Baltimore-City-County, Maryland · implied b. ~1895 — 6 household members

Surname	Thompson
Given Name	Bertha
Relationship to Head	Head
Sex	F
Color / Race	Black
Age	45
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Industry	H
Highest Grade	No 3
1935 Residence	Same Place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

Model Tree

Linked across censuses

Our Model Tree links Bertha Thompson 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 Thompson

Head · 1940 · age 45 · b. ~1895 · Maryland

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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 — Baltimore-City-County, Maryland Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01518-00581)

Line	Name	Age	Relation	Occupation	Birthplace
1	Columbus Mcintyre	38	Head	Vendor	North Carolina
2	Katie Mcintyre	31	Wife	—	North Carolina
3	John Mcintyre	14	Son	—	North Carolina
4	Rosalie Mcintyre	13	Daughter	—	North Carolina
5	Charles Mcintyre	11	Son	—	North Carolina
6	Marina Mcintyre	10	Daughter	—	North Carolina
7	Columbus Mcintyre	4	Son	—	Maryland
8	Alexander Mcintyre	1	Son	—	Maryland
9	Clara Thompson	35	Head	—	Maryland
10	Sadie Thompson	20	Daughter	—	Maryland
11	Frances Thompson	8	Daughter	—	Maryland
12	Bertha Thompson THIS PERSON	45	Head	—	Maryland
13	Jerome Thompson	11	Son	—	Maryland
14	James Thompson	10	Son	—	Maryland
15	William Thompson	7	Son	—	Maryland
16	Roland Thompson	4	Son	—	Maryland
17	Thomas Butler	57	Lodger	Vendor	Maryland
18	Richard Richardson	53	Head	—	Maryland
19	Helen Richardson	35	Wife	—	Maryland
20	Richard Jr. Richardson	12	Son	—	Maryland
21	Robert Whitlow	23	Lodger	—	Maryland
22	Harry Whitlow	21	Lodger	—	Maryland
23	George Hoper	35	Head	Laborer	South Carolina
24	Lucy Hoper	23	Wife	—	North Carolina
25	Arthur Hoper	7	Son	—	Maryland
26	Walter Hoper	5	Son	—	Maryland
27	Bernice Hoper	3	Daughter	—	Maryland
28	James Williams	32	Head	Cook	South Carolina
29	Lucille Williams	27	Wife	—	Virginia
30	Mabel Hokie	33	Head	Servant	Maryland
31	Bernice Hokie	15	Daughter	—	Maryland
32	Pauline Hokie	12	Daughter	—	Maryland
33	Roy Long	29	Head	Laborer	Virginia
34	Dora Spouseman	44	Lodger	Servant	Maryland
35	George E. Foster	65	Head	Chauffeur	Maryland
36	Margaret E. Foster	60	Wife	—	Maryland
37	Rudell Foster	20	Lodger	—	South Carolina
38	Sarah Bell	55	Head	—	Maryland
39	Romaine Bell	14	Grand-daughter	—	Maryland
40	James J. Bell	5	Grand-son	—	Maryland

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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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