Ada Johnson — 1940 US Census Record

Model Tree available

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

Our Model Tree links this Ada Johnson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Daniel & Agnes — first a spouse (b.~1918), then head of a 6-person household.

Age 22 b. ~1918 Female Spouse Born: Maryland Married

1940 Census Record Details

Census Year	1940
Location	Baltimore-City-County, Maryland
Surname	Johnson
Given Name	Ada
Relationship to Head	Wife
Sex	F
Color / Race	Black
Age	22
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Additional Details
Highest Grade	Hs 3
1935 Residence	Same Place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland
Township / Ward	Baltimore City
Est. Birth Year	~1918

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 Ada	Age	Birth yr
Dolores Johnson	Daughter	—	3	~1937
Frank Johnson	Head	—	29	~1911
Elsie Davis	Other	—	35	~1905
Lester Davis	Other	—	44	~1896
Mamie Beale	Other	—	50	~1890
Ada Johnson	Spouse	—	22	~1918

Census Appearances

1920

Baltimore, Maryland

Other, age 2

Baltimore, Maryland · implied b. ~1918 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnson
Given Name	Ada
Relationship to Head	Niece
Sex	F
Color / Race	Black
Age	2
Marital Status	Single
Birthplace	Maryland
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1930

Baltimore, Maryland

Daughter, age 11

Baltimore, Maryland · implied b. ~1919 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnson
Given Name	Ada
Relationship to Head	Daughter
Sex	F
Color / Race	Black
Age	11
Marital Status	Single
Birthplace	Maryland
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

Spouse, age 22

Baltimore-City-County, Maryland · implied b. ~1918 — 6 household members

Surname	Johnson
Given Name	Ada
Relationship to Head	Wife
Sex	F
Color / Race	Black
Age	22
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Highest Grade	Hs 3
1935 Residence	Same Place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Daniel Johnson

b. ~1890

Source father

● Household · direct · ~0.92

Mother

Agnes Johnson

b. ~1900

Source mother

● Household · direct · ~0.92

This person

Anchor record

Ada Johnson

Spouse · 1940 · age 22 · b. ~1918 · Maryland

★ 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 — Baltimore-City-County, Maryland Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-01523-00429)

Line	Name	Age	Relation	Occupation	Birthplace
1	Fred Saunders	37	Head	Helper	S Carolina
2	Elizabeth Saunders	12	Daughter	—	S Carolina
3	Myrtle Saunders	10	Daughter	—	S Carolina
4	Geraldine Saunders	9	Daughter	—	S Carolina
5	Beatrice Saunders	5	Daughter	—	S Carolina
6	Winifred Saunders	4	Daughter	—	S Carolina
7	Frank Johnson	29	Head	Kitchen Mechanic	Virginia
8	Ada Johnson THIS PERSON	22	Wife	—	Maryland
9	Dolores Johnson	3	Daughter	—	Maryland
10	Mamie Beale	50	Lodger	Maid	Virginia
11	Lester Davis	44	Lodger	Longshoreman	S Carolina
12	Elsie Davis	35	Lodger	—	Virginia
13	Herbert Mccarthy	55	Head	Handyman	Georgia
14	Mamie Mccarthy	44	Wife	—	Georgia
15	Earnest Pinder	1	Lodger	—	Maryland
16	Clarence Linson	31	Head	Laborer	Virginia
17	Mary B. Linson	21	Wife	—	Virginia
18	Albert Linson	9	Son	—	Virginia
19	Laurice Linson	8	Daughter	—	Virginia
20	Solomon Linson	20	Brother	Laborer	Virginia
21	Adeline Linson	21	Sister	—	Virginia
22	Addison	35	Lodger	—	Virginia
25	Florence Brooks	57	Head	Cook	Maryland
26	Vivian Brooks	24	Daughter	—	Maryland
27	Dorothy Brooks	22	Daughter	Maid	Maryland
28	Alonzo Myers	25	Head	Cook	Florida
29	Lydia Myers	26	Wife	Cook	Florida
30	Clifton Conquest	28	Head	Operator	Virginia
31	Elsie Conquest	25	Wife	Linen Maid	Maryland
32	George Harris	33	Brother-in-law	Cook	Maryland
33	Carlie Logan	33	Head	Beautician	Maryland
34	Beatrice Weems	31	Niece	Maid	Maryland
35	Lucy Barrette	28	Head	Maid	Virginia
36	Dorothy Deleane	23	Sister	Maid	Virginia
37	Benjamin Deleane	20	Brother	Waiter	Virginia
38	Audrey Deleane	18	Sister	Helper	Virginia
39	Phillip Wiggins	25	Lodger	Laborer	Virginia
40	Burton Bissel	25	Lodger	Waiter	Virginia

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Pedigree Summary

Ada

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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