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Mary Finn — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Hamilton-County, Ohio

Our Model Tree links this Mary Finn across the 1930 and 1940 US Censuses in Hamilton-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
LocationHamilton-County, Ohio
SurnameFinn
Given NameMary Louise
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age13
Marital StatusSingle
BirthplaceOhio
1935 Residence (City)Cincinnati
1935 Residence (County)Hamilton
Additional Details
Highest GradeNo 6
1935 ResidenceSame house
Birth StateOhio
Birth CountryUnited States
Birthplace (normalized)ohio
Township / WardCincinnati
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
Marcella Finn Daughter — 26 ~1914
Maybelle Finn Spouse — 54 ~1886
Thomas Finn Son — 11 ~1929
Margaret Finn Daughter — 21 ~1919
John Finn Head — 64 ~1876
Howard Finn Son — 17 ~1923
Martha Finn Daughter — 24 ~1916
Mary Finn Daughter — 13 ~1927
William Finn Son — 19 ~1921

Census Appearances

1930
Hamilton, Ohio
Daughter, age 5
Hamilton, Ohio · implied b. ~1925 — 10 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Finn
Given Name Mary Louise
Relationship to Head Daughter
Sex F
Color / Race White
Age 5
Marital Status Single
Birthplace Ohio
Father's Birthplace Ohio
Mother's Birthplace Ohio
Can Read/Write Yes
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio
1940
Hamilton-County, Ohio
Daughter, age 13
Hamilton-County, Ohio · implied b. ~1927 — 9 household members
Surname Finn
Given Name Mary Louise
Relationship to Head Daughter
Sex F
Color / Race White
Age 13
Marital Status Single
Birthplace Ohio
1935 Residence (City) Cincinnati
1935 Residence (County) Hamilton
Highest Grade No 6
1935 Residence Same house
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 Finn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Finn
Daughter · 1940 · age 13 · b. ~1927 · Ohio
★ You are viewing this record
Sibling
William Finn
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcella Finn
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Finn
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Finn
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Finn
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Finn
Sibling · 1940 · age 17
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 — Hamilton-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03189-00303)

Line Name Age Relation Occupation Birthplace
41 Mary Skirvin 22 Maid Maid Ohio
42 Alice B. Pollock 74 Wife — Texas
43 Joseph R. Pollock 47 Son — Kentucky
44 Marie Zohrlaut 36 Housemaid Maid Indiana
45 Martha Hashamp 54 Cook Cook Indiana
46 William F. Wiley 39 Head Solicitor Ohio
47 Florence Wiley 32 Wife — Ohio
48 Alfrie Nelson 53 Maid Maid Kentucky
49 John H. Finn 64 Head Broker Ohio
50 Maybelle Finn 54 Wife — Ohio
51 Marcella Finn 26 Daughter — Ohio
52 Martha Finn 24 Daughter — Ohio
53 Margaret Finn 21 Daughter — Ohio
54 William F. Finn 19 Son — Ohio
55 Howard L. Finn 17 Son — Ohio
56 Mary Louise Finn THIS PERSON 13 Daughter — Ohio
57 Thomas Finn 11 Son — Ohio
58 Frank F. Dinsmore 70 Head Attorney Ohio
59 Mary C. Dinsmore 66 Wife — Ohio
60 Joseph C. Dinsmore 41 Son Attorney Ohio
61 Margaret Loder 64 Maid Maid Ohio
62 Harlow Gibson 42 Head Salesman Ohio
63 Anne B. Gibson 36 Wife — Ohio
64 Mark G. Gibson 15 Son — Ohio
65 Stuart F. Gibson 14 Son — Ohio
66 Anne Gibson 11 Daughter — Ohio
67 Herbert C. Gibson 7 Son — Ohio
68 Lennie Bennett 27 Maid Maid Alabama
69 Thos. M. Geoghegan 56 Head General Agent Ohio
70 Mary Ann Geoghegan 26 Daughter — Ohio
71 Jane Ann Geoghegan 23 Daughter — Ohio
72 Thomas M. Geoghegan 21 Son — Ohio
73 Estelle Geoghegan 18 Daughter — Ohio
74 William A. Geoghegan 15 Son — Ohio
75 Margaret Mary Geoghegan 12 Daughter — Ohio
76 Elsie Kyle 44 Maid Maid Kentucky
77 Cecil H. Gamble 55 Head Executive Ohio
78 Louise G. Gamble 55 Wife — Ohio
79 David G. Gamble 24 Son — Ohio
80 Edwin C. Gamble 22 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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