Mary Peters — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Peters across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 5-person household.

Age 70 b. ~1870 Female Head Born: Maryland Widowed

1940 Census Record Details

Census Year	1940
Location	Baltimore-City-County, Maryland
Surname	Peters
Given Name	Mary E.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	70
Marital Status	Widowed
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Additional Details
Class of Worker	0
Highest Grade	H 4
1935 Residence	Same House
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland
Township / Ward	Baltimore City
Est. Birth Year	~1870

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
Danielle Peters	Daughter	—	28	~1912
Lillian Peters	Daughter	—	45	~1895
Mary Peters	Head	—	70	~1870
Joseph Weatherington	Other	—	66	~1874
Joseph Peters	Son	—	33	~1907

Census Appearances

1920

Baltimore, Maryland

Spouse, age 47

Baltimore, Maryland · implied b. ~1873 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Peters
Given Name	Mary L.
Relationship to Head	Wife
Sex	F
Color / Race	Black
Age	47
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 55

Baltimore, Maryland · implied b. ~1875 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Peters
Given Name	Mary
Relationship to Head	Mother
Sex	F
Color / Race	Black
Age	55
Marital Status	Widowed
Birthplace	Maryland
Age at First Marriage	24
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Occupation	Housework
Industry	Private family
Class of Worker	W
Can Read/Write	No
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1940

Baltimore-City-County, Maryland

Head, age 70

Baltimore-City-County, Maryland · implied b. ~1870 — 5 household members

Surname	Peters
Given Name	Mary E.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	70
Marital Status	Widowed
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Class of Worker	0
Highest Grade	H 4
1935 Residence	Same House
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Peters

Head · 1940 · age 70 · b. ~1870 · 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

37 people indexed on this census page (nara:1940:m-t0627-01512-00444)

Line	Name	Age	Relation	Occupation	Birthplace
41	Marie Ruppert	24	Daughter	Cashier	Maryland
42	William Ruppert	23	Son	—	Maryland
43	Martha Weatherington	43	Daughter	—	Maryland
44	Louis J. Siehler	49	Head	Medical Technician	Maryland
45	Cristina R. Siehler	22	Daughter	Telephone Opr	Maryland
46	Mary E. Peters THIS PERSON	70	Head	—	Maryland
47	Lillian Peters	45	Daughter	Cashier	Maryland
48	Joseph P. Peters	33	Son	Clerk	Maryland
49	Danielle Peters	28	Daughter	Bookkeeping	Maryland
50	Joseph Weatherington	66	Brother	Floorwalker	Maryland
51	Jerry Suchanek	48	Head	Tailor	Czechoslovakia
52	Marie Suchanek	44	Wife	—	Czechoslovakia
53	Mary Papa	46	Head	—	Maryland
54	Leonard J. Kaal	27	Son	Machinist	Maryland
55	Frank Kaal	23	Son	Service Sta. Floats	Maryland
56	Lydia Keamer	54	Lodger	—	Maryland
57	Matthew Zelenka	53	Head	Cutter	Czechoslovakia
58	Antoinette Zelenka	51	Wife	—	Czechoslovakia
59	John L. Collins	29	Head	Clerk	Virginia
60	Ann Collins	28	Daughter	Stenographer	Maryland
61	Patricia Collins	4	Granddaughter	—	Maryland
62	Virginia Collins	2	Granddaughter	—	Maryland
63	Joseph W. Base	36	Head	Mail-Man	Maryland
64	Mary F. Base	35	Wife	—	Maryland
65	Rosalie Base	14	Daughter	—	Maryland
66	Joseph T. Jr. Base	9	Son	—	Maryland
67	Anna Kuvanda	71	Mother	—	Czechoslovakia
68	Charles Cerveny	52	Head	Proprietor	Czechoslovakia
69	Josephine Cerveny	50	Wife	Waitress	Czechoslovakia
70	Block 18 - Dead Begin Block 19	None	—	—	—
71	Bessie B. Dihm	48	Head	—	Maryland
72	Richard Dihm	23	Son	Draftsman	Maryland
73	Betty Dihm	22	Daughter	Bookkeeper	Maryland
74	Frances Kaloos	54	Head	Washing For	Austria
75	William Ryons	29	Head	Musician	Maryland
76	Mabel Ryons	32	Wife	Bookkeeper	Maryland
77	Maureen Ryons	6	Daughter	—	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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