Mary Brooks — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Brooks across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 5-person household.

Age 35 b. ~1905 Female Spouse Born: Maryland Married

1940 Census Record Details

Census Year	1940
Location	Baltimore-City-County, Maryland
Surname	Brooks
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	Black
Age	35
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Additional Details
Industry	0
Highest Grade	No 2
1935 Residence	Same place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland
Township / Ward	Baltimore City
Est. Birth Year	~1905

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Margaret Brooks	Daughter	—	15	~1925
Marie Brooks	Daughter	—	11	~1929
John Brooks	Head	—	46	~1894
Wesley Brooks	Son	—	12	~1928
Mary Brooks	Spouse	—	35	~1905

Census Appearances

1920

Howard, Maryland

Other, age 15

Howard, Maryland · implied b. ~1905 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brooks
Given Name	Mary
Relationship to Head	Step Daughter
Sex	F
Color / Race	Black
Age	15
Marital Status	Single
Birthplace	Maryland
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Occupation	Servant
Industry	Private Family
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1930

Baltimore, Maryland

Other, age 25

Baltimore, Maryland · implied b. ~1905 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brooks
Given Name	Mary E.
Relationship to Head	Roomer
Sex	F
Color / Race	Black
Age	25
Marital Status	Single
Birthplace	Maryland
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Occupation	N.P.
Can Read/Write	Yes
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1940

Baltimore-City-County, Maryland

Spouse, age 35

Baltimore-City-County, Maryland · implied b. ~1905 — 5 household members

Surname	Brooks
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	Black
Age	35
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Industry	0
Highest Grade	No 2
1935 Residence	Same place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Brooks

Spouse · 1940 · age 35 · b. ~1905 · 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-t0627-01534-00121)

Line	Name	Age	Relation	Occupation	Birthplace
1	Elmer Moore	39	Head	Labor	Virginia
2	Carrie Moore	26	Wife	—	Virginia
3	John Clark	41	Lodger	Labor	Virginia
4	Eugene Major	41	Head	Labor	Maryland
5	Pearl Major	39	Wife	—	South Carolina
6	Obie Thompson	24	Head	Labor	Kentucky
7	Helen Thompson	21	Wife	—	Maryland
8	Bernard Thompson	6	Son	—	Maryland
9	Lloyd Leverne	31	Lodger	Labor	New Jersey
10	Alexander Borre	49	Head	Labor	South Carolina
11	Margaret Borre	60	Wife	—	South Carolina
12	Joseph Alexander	22	Son	Labor	Maryland
13	William Alexander	16	Son	—	Maryland
14	Andre Alexander	10	Son	—	Maryland
15	Perry Alexander	8	Son	—	Maryland
16	John Brooks	46	Head	Labor	Virginia
17	Mary Brooks THIS PERSON	35	Wife	—	Maryland
18	Margaret Brooks	15	Daughter	—	Maryland
19	Wesley Brooks	12	Son	—	Maryland
20	Marie Brooks	11	Daughter	—	Maryland
21	Webster Young	42	Head	Labor	South Carolina
22	Bessie Young	32	Wife	—	Maryland
23	Myrtle Howard	37	Head	Maid	Maryland
24	Sherman Wilkins	49	Head	Trimmer	Maryland
25	Everly Wilkins	48	Lodger	—	Maryland
26	Robert Tobias	53	Head	Labor	South Carolina
27	Mary Tobias	42	Wife	—	Maryland
28	Charles Saynor	51	Head	—	Virginia
29	Thadore Harris	27	Head	Labor	North Carolina
30	Alberta Harris	25	Wife	Housekeeper	South Carolina
31	Anne Thomas	20	Niece	Housekeeper	North Carolina
32	Ethel Green	43	Head	Housework	Maryland
33	William A. Green	20	Son	Helper	Maryland
34	Oliver Green	9	Son	—	Maryland
35	Edward Green	8	Son	—	Maryland
36	Joy Green	6	Daughter	—	Maryland
37	David Green	4	Son	—	Maryland
38	Ellis Spence	35	Head	Housework	Maryland
39	Muriel Spence	17	Daughter	—	Maryland
40	Jerome Spence	15	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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