Bertha Martin — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Hamilton-County, Ohio

Our Model Tree links this Bertha Martin across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 3-person household.

Age 76 b. ~1864 Female Head Born: Ohio Widowed

1940 Census Record Details

Census Year	1940
Location	Hamilton-County, Ohio
Surname	Martin
Given Name	Bertha
Relationship to Head	Head
Sex	F
Color / Race	White
Age	76
Marital Status	Widowed
Birthplace	Ohio
1935 Residence (City)	Cincinnati
1935 Residence (County)	Hamilton
Additional Details
Hours Worked	0
Highest Grade	No 5
1935 Residence	Same House
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Township / Ward	Cincinnati
Est. Birth Year	~1864

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.

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

Name	Relation to head	Relative to Bertha	Age	Birth yr
Lillian Martin	Daughter	—	32	~1908
Bertha Martin	Head	—	76	~1864
Maurice Martin	Son	—	35	~1905

Census Appearances

1920

Hamilton, Ohio

Head, age 54

Hamilton, Ohio · implied b. ~1866 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martin
Given Name	Bertha
Relationship to Head	Head
Sex	F
Color / Race	White
Age	54
Marital Status	Widowed
Birthplace	Ohio
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	R
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Hamilton, Ohio

Other, age 65

Hamilton, Ohio · implied b. ~1865 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martin
Given Name	Bertha
Relationship to Head	Mother-H
Sex	F
Color / Race	White
Age	65
Marital Status	Widowed
Birthplace	Ohio
Age at First Marriage	25
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Hamilton-County, Ohio

Head, age 76

Hamilton-County, Ohio · implied b. ~1864 — 3 household members

Surname	Martin
Given Name	Bertha
Relationship to Head	Head
Sex	F
Color / Race	White
Age	76
Marital Status	Widowed
Birthplace	Ohio
1935 Residence (City)	Cincinnati
1935 Residence (County)	Hamilton
Hours Worked	0
Highest Grade	No 5
1935 Residence	Same House
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

Our Model Tree links Bertha Martin 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 Martin

Head · 1940 · age 76 · b. ~1864 · Ohio

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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 — Hamilton-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03194-00101)

Line	Name	Age	Relation	Occupation	Birthplace
41	Minnie Saffron	52	Wife	—	Austria
42	Saul I Hapner	46	Head	Proprietor	Ohio
43	Rosie Hapner	37	Wife	—	Ohio
44	Jacqueline Hapner	16	Daughter	—	Ohio
45	Debra Hapner	7	Daughter	—	Ohio
46	Katherine Clintz	24	Servant	Maid	Ohio
47	Nellie Brand	40	Head	—	Russia
48	Arthur Brand	20	Son	—	Ohio
49	Evelyn Brand	23	Daughter	Stenographer	Ohio
50	Hardy Monzon	19	Lodger	0	Germany
51	Ben Seelig	41	Head	Tailor	Germany
52	Joanna Seelig	39	Wife	—	Germany
53	Rosie Seelig	14	Daughter	Tailoress	Germany
54	Joseph Roth	32	Boarder	60	Germany
55	Selma Roth	3	Daughter	—	Germany
56	Bertha Martin THIS PERSON	76	Head	—	Ohio
57	Maurice Martin	35	Son	Florist	Ohio
58	Lillian Martin	32	Daughter	Stenographer	Ohio
59	Isaac Aaron	67	Head	—	Russia
60	Kate Aaron	61	Wife	—	Russia
61	Benjamin Aaron	32	Son	Salesman	Ohio
62	Max Westerman	39	Head	Peddler	Russia
63	Phil Westerman	36	Wife	—	New York
64	Marion Westerman	15	Daughter	—	Ohio
65	Elaine Westerman	12	Daughter	—	Ohio
66	Natalie Westerman	3	Daughter	—	Ohio
67	Carl Tratt	60	Head	0	Germany
68	Fannie Tratt	52	Wife	0	Germany
69	Gary Dettman	84	Mother-in-law	0	Germany
70	Sarah Dettman	57	Brother-in-law	40	Germany
71	Jacob Leff	74	Head	—	Russia
72	Ida Leff	39	Daughter	Saleslady	Ohio
73	Ben Cohen	64	Head	Butcher	Russia
74	Essie Cohen	57	Wife	—	Russia
75	Morris Stillpass	36	Head	Manager	Ohio
76	Blanche Stillpass	36	Wife	—	Ohio
77	Beverly Stillpass	8	Daughter	—	Massachusetts
78	Phyllis Stillpass	5	Daughter	—	Massachusetts
79	Gordon Block	49	Head	Salesman	Ohio
80	Edna Block	45	Wife	—	Ohio

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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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