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Mary Jacobs — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Franklin-County, Ohio

Our Model Tree links this Mary Jacobs across the 1930 and 1940 US Censuses in Franklin-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.

Age 13 b. ~1927 Female Daughter Born: Ohio Single

1940 Census Record Details

Census Year1940
LocationFranklin-County, Ohio
SurnameJacobs
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age13
Marital StatusSingle
BirthplaceOhio
1935 Residence (City)Columbus
1935 Residence (County)Franklin
Additional Details
Income (1939)0
Highest GradeNo 8
1935 ResidenceSame place
Birth StateOhio
Birth CountryUnited States
Birthplace (normalized)ohio
Township / WardColumbus
Est. Birth Year~1927

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.

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

Name Relation to head Relative to Mary Age Birth yr
Mary Jacobs Daughter — 13 ~1927
Ruth Jacobs Daughter — 14 ~1926
Eleanor Kearney Daughter — 18 ~1922
Sarah Jacobs Daughter — 21 ~1919
Clarence Jacobs Head — 41 ~1899
George Jacobs Son — 16 ~1924
James Kearney Son — 15 ~1925
Thomas Jacobs Son — 11 ~1929
Margaret Jacobs Spouse — 39 ~1901

Census Appearances

1930
Franklin, Ohio
Daughter, age 2
Franklin, Ohio · implied b. ~1928 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Jacobs
Given Name Mary E
Relationship to Head daughter
Sex F
Color / Race White
Age 2
Marital Status Single
Birthplace Ohio
Age at First Marriage No
Father's Birthplace Ohio
Mother's Birthplace Ohio
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio
1940
Franklin-County, Ohio
Daughter, age 13
Franklin-County, Ohio · implied b. ~1927 — 9 household members
Surname Jacobs
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 13
Marital Status Single
Birthplace Ohio
1935 Residence (City) Columbus
1935 Residence (County) Franklin
Income (1939) 0
Highest Grade No 8
1935 Residence Same place
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio

Model Tree

An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Linked across censuses
Our Model Tree links Mary Jacobs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jacobs
Daughter · 1940 · age 13 · b. ~1927 · Ohio
★ You are viewing this record
Sibling
James Kearney
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Kearney
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Jacobs
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Jacobs
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Jacobs
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Jacobs
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Franklin-County, Ohio Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-03241-00225)

Line Name Age Relation Occupation Birthplace
41 Loretta Wilkinson 76 Head — Germany
42 Kenneth Charles Wilkinson 55 Son-in-law Butcher Ohio
43 Hattie Wilkinson 57 Daughter — Germany
44 Otto Hermann 51 Head Clerk Ohio
45 Elizabeth Addison 59 Sister — Ohio
46 Catherine Addison 31 Daughter — Ohio
48 Clarence Jacobs 41 Head Foreman Ohio
49 Margaret (X) Jacobs 39 Wife — Ohio
50 Sarah Jacobs 21 Daughter General Work Ohio
51 Eleanor Kearney 18 Daughter General Work Ohio
52 James Kearney 15 Son — Ohio
53 George Jacobs 16 Son — Ohio
54 Ruth Jacobs 14 Daughter — Ohio
55 Mary Jacobs THIS PERSON 13 Daughter — Ohio
56 Thomas Jacobs 11 Son — Ohio
57 James (X) Queen 40 Head — West Virginia
58 Albert Queen 40 Son Laborer Alabama
59 Alma Queen 30 Lodger — Ohio
60 Karl (X) Meyer 64 Head Cabinet Maker Germany
61 Lukas Yomfo 62 Head Conductor Ohio
62 Rose (X) Yomfo 59 Wife — Indiana
63 John Vertner 27 Head Manager Ohio
64 Mabel Vertner 30 Wife — Ohio
65 Donna Lou Vertner 5 Daughter — Ohio
66 Ada Bush 70 Mother-in-law Day Work Ohio
67 Betty Evans 13 Sister — Ohio
68 Stella Shaffer 72 Head — Ohio
69 Helen Thomas 40 Head — Ohio
70 Marie Thomas 46 Sister Inspector Ohio
71 Christina (X) Thomas 73 Mother — Ohio
72 Henry Thebaud 59 Head Agent Indiana
73 Mary Thebaud 47 Wife Shoe Worker Ohio
74 John B. (X) Purcell 67 Head Proprietor Ohio
75 Anna Purcell 56 Wife Cook Ohio
76 George (X) Beutel 34 Head — Ohio
77 Christine Beutel 24 Wife — Ohio
78 Betty Beutel 14 Daughter — Ohio
79 Richard Beutel 11 Son — Ohio
80 William Beutel 9 Son — 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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