Mary Cohen — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Baltimore, Maryland

Our Model Tree links this Mary Cohen across the 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1863), then head of a 10-person household.

Age 67 b. ~1863 Female Spouse Born: Poland Married

1930 Census Record Details

Census Year	1930
Location	Baltimore, Maryland
Surname	Cohen
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	67
Marital Status	Married
Birthplace	Poland
Naturalization Status	Naturalized
Year of Immigration	1875
Age at First Marriage	17
Father's Birthplace	Poland
Mother's Birthplace	Poland
Additional Details
Mother Tongue	Yiddish
Birth Country	Poland
Birthplace (normalized)	poland
Township / Ward	Baltimore City
Est. Birth Year	~1863

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.

10 people recorded at the same address in the 1930 census.

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Cohen	Spouse	—	67	~1863
Hannah Cohen	Daughter	—	32	~1898
Aaron Cohen	Son	—	31	~1899
Morris Cohen	Son	—	33	~1897
Noah Cohen	Son	—	31	~1899
Samuel Cohen	Son	—	30	~1900
Lillian Cohen	Daughter	—	28	~1902
Jerry Cohen	Other	—	12	~1918
Barney Cohen	Head	—	78	~1852
Harry Cohen	Son	—	35	~1895

Census Appearances

1920

Baltimore, Maryland

Spouse, age 57

Baltimore, Maryland · implied b. ~1863 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cohen
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Poland
Year of Immigration	1871
Naturalization Status	Naturalized
Father's Birthplace	Poland
Mother's Birthplace	Poland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Hebrew
Birth Country	Poland
Year of Naturalization	1883
Birthplace (normalized)	poland

1930

Baltimore, Maryland

Spouse, age 67

Baltimore, Maryland · implied b. ~1863 — 10 household members

Surname	Cohen
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	67
Marital Status	Married
Birthplace	Poland
Naturalization Status	Naturalized
Year of Immigration	1875
Age at First Marriage	17
Father's Birthplace	Poland
Mother's Birthplace	Poland
Mother Tongue	Yiddish
Birth Country	Poland
Birthplace (normalized)	poland

Model Tree

Linked across censuses

Our Model Tree links Mary Cohen across 2 US Census years (1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage.

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This person

Anchor record

Mary Cohen

Spouse · 1930 · age 67 · b. ~1863 · Maryland

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1930 US Federal Census — Baltimore, Maryland Open full size

Page Contents

49 people indexed on this census page (ia:1930:15thcensus859unit:0466)

Line	Name	Age	Relation	Occupation	Birthplace
1	Barney Cohen	78	Head	—	Poland
2	Mary Cohen THIS PERSON	67	Wife	—	Poland
3	Harry Cohen	35	Son	Salesman	New York
4	Noah Cohen	31	Son	Salesman	Maryland
5	Morris Cohen	33	Son	Merchant	Maryland
6	Aaron Cohen	31	Son	Merchant	Maryland
7	Hannah Cohen	32	Daughter	—	Maryland
8	Samuel Cohen	30	Son	Salesman	Maryland
9	Lillian Cohen	28	Daughter	—	Maryland
10	Jerry Cohen	12	Grandson	—	Maryland
11	Isadore Koppel	41	Head	—	Germany
12	Caroline Koppel	30	Wife	—	Germany
13	Edward Koppel	5	Son	—	Maryland
14	Samuel Rosenblatt	42	Head	Salesman	New York
15	Rose Rosenblatt	37	Wife	—	Maryland
16	Sophie Rosenberg	63	Mother-in-law	Dressmaker	Maryland
17	Herman Koppelman	42	Head	Salesman	Poland
18	Mollie Koppelman	41	Wife	—	Poland
19	Arthur Koppelman	20	Son	Salesman	Maryland
20	Ethel Koppelman	21	Daughter	Salesman	Maryland
21	Ida Warner	20	Boarder	Stenographer	Maryland
22	Michael Gardina	41	Head	Blacksmith	Italy
23	Josephine Gardina	42	Wife	—	Italy
24	Joseph Gardina	21	Son	—	Maryland
25	Angelo Gardina	19	Son	—	Maryland
26	Charles Brogato	56	Brother-in-law	—	Maryland
27	Concetta Brogato	20	Sister	—	Maryland
28	James Butwell	42	Head	—	Canada English
29	Elizabeth Butwell	33	Wife	—	Maryland
30	John Link	60	Head	Clerk	Maryland
31	Alice W. Link	51	Wife	—	Maryland
32	Philip Link	20	Son	Electrician	Maryland
33	Louis Jacobs	40	Head	Merchant	Lithuania
34	Fannie Jacobs	38	Wife	—	Lithuania
35	Bessie Jacobs	16	Daughter	—	Pennsylvania
36	George Jacobs	12	Son	—	Pennsylvania
37	Charles Jacobs	8	Son	—	Maryland
38	Myra Jacobs	3	Daughter	—	Maryland
39	Samuel Snyder	48	Head	Agent	Lithuania
40	Bessie Snyder	43	Wife	—	Lithuania
41	Abraham Snyder	9	Son	—	Maryland
42	Edna Snyder	5	Daughter	—	Maryland
43	Frank Gurniak	55	Head	—	Lithuania
44	Bernard Gurniak	33	Son	Salesman	Maryland
45	Herman Gurniak	27	Son	Salesman	Maryland
46	Hannah Gurniak	21	Daughter	Secretary	Maryland
47	Louis Freedman	52	Head	Merchant	Lithuania
48	Celia Freedman	48	Wife	—	Lithuania
49	Benjamin Freedman	25	Son	Inspector	Maryland

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1930 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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